Fast Radio Bursts. Laura Spitler Max-Planck-Institut für Radioastronomie 11. April 2015

Size: px
Start display at page:

Download "Fast Radio Bursts. Laura Spitler Max-Planck-Institut für Radioastronomie 11. April 2015"

Transcription

1 Fast Radio Bursts Laura Spitler Max-Planck-Institut für Radioastronomie 11. April 2015

2 Lorimer Burst Bright burst discovered in the reprocessing of archival data from a pulsar survey A Bright Millisecond Radio Burst of Extragalactic Origin Lorimer et al., Science, published FRBs

3 Duration of pulse: 1-10 ms Appear to be nonrepeating Flux densities: Jy The observed frequencydependent delay exactly follows expect dispersion through a cold plasma. Thornton et al 2013 Found by surveys for radio pulsars Spitler et al 2014

4 Parkes Radio Telescope Arecibo Radio Telescope Image credit: NAIC - Arecibo Observatory, a facility of NSF Image credit: Stephen West New South Wales, Australia Puerto Rico, USA Multibeam Receiver (13 beams) Discovered 9 FRBs (including the first) First measurement of polarization First detection in realtime Arecibo L-band Feed Array (7 beams) Second telescope to discover an FRB First (believable) FRB in the Galactic plane 5 unpublished FRBs coming in Chamption et al in prep

5 Parkes Multibeam Receiver Arecibo L-band Feed Array 13 pixel ATNF 7 pixel Spitler et al 2014 Sky frequency: GHz Half Power Beam Width: 14 arcmin Sky frequency: GHz Half Power Beam Width: 3.5 arcmin

6 Sky distribution Parkes Arecibo

7 Dispersion Ionized interstellar medium has a frequency-dependent index of refraction Frequency-dependent time-ofarrival to the Earth t 1 t 2 1 ν ν 2 2 Frequency (MHz) Time (sec) R. Karuppusamy

8 Dispersion Magnitude of delay described by dispersion measure (DM) DM = D 0 n e dl t 1 t 2 = DM 1 ν 2 1,GHz 1 ν 2 2,GHz ms If you have an estimate for the number density of electrons along the line-of-sight, you can estimate the distance.

9 NE2001 model (Cordes and Lazio 2002) NASA/JPL-Caltech/ESO/R. Hurt WISE - NASA

10 NE2001 model Predict the maximum DM contribution from our Galaxy DMA DMB DMA DMB WISE - NASA Cordes and Lazio 2002

11 The DMs of FRBs are too large for the sources to be in our Galaxy DM = DMMilkyWay + DMIntergalacticMedium + DMHostGalaxy

12 Distance Estimates t obs = t MW + t IGM + t HG t MW NE2001 t HG = 100 ms/(1 + z) 2 (assuming host galaxy DM =100 pc cm -3 ) t IGM = 1200z ms (Ioka 2003 & Inoue 2004) FRB : Spitler et al 2014 z =0.26 D 1Gpc FRB : z =0.96 D 3.2 Gpc Thornton et al 2013

13 FRB Rate Calculations Canonical rate based on a detection of four FRBs: R P = sky 1 day 1 Thornton et al 2013 (for Speak > 3 Jy and 1 ms) FRB discovered by the Arecibo Observatory is also consistent with this rate for comparable sensitivities Spitler et al 2014 The updated rate based on five additional FRBs from Parkes is within the uncertainties of the canonical rate Champion et al in prep

14 What do we know? Emission process must be coherent Tb K Energy output is... L ergs Spectral index is not as negative as radio pulsars

15 GRBs The rates are inconsistent GRBs 1 day -1 FRBs 10 4 day -1 No coincidence of FRBs with time/location of observed GRBs NASA/Swift/Mary Pat Hrybyk-Keith and John Jones

16 (Very) giant pulses Cordes & Wasserman 2014 Parametrize flux densities of giant pulses based off of the Crab In 10 3 years Smax = 10 8 to Jy D = 15 to 300 Mpc Note that NNS born within a Hubble volume is ~10 4 day -1 Cordes et al 2004

17 Flares from SGR (magnetars) Strong x-ray flares Highly accelerated particles collide with winds and synchrotron maser emission produced at shock front (Lyubarsky 2014) The rates/energetics could be compatible with observations (Kulkarni et al 2014)

18 How to move forward? Improve spatial localization Counterpart at optical/x-ray/gamma-ray wavelengths Identify a host galaxy more accurate distance Increase the sample size Learn about the physics from pulse profile variations

19 How to move forward? Improve spatial localization Counterpart at optical/x-ray/gamma-ray wavelengths Identify a host galaxy more accurate distance Increase the sample size Realtime Detection Learn about the physics from pulse profile variations

20 Realtime detections and identifications Graphics Processing Unit heimdall GPU transient detection code -Written by Ben Barsdell -Factor of x faster than CPU codes Nvidia FRB needle in an RFI haystack

21 First two realtime FRBs from Parkes Ravi & Shannon 2015 Petroff et al 2015 Extensive follow-up with radio, optical, x- ray, and gamma-ray telescopes

22 Effelsberg realtime FRB survey MPIfR Effelsberg 100-m radio telescope near Bonn, Germany Detections of single pulses from the bright pulsar B

23 Hans Hordijk Lower frequency measurements (LOFAR) Optical counterparts X-ray/Gamma ray emission (Swift) MPIfR -More clues to astrophysical source -Host galaxy identification

24 Increasing the Sample Size Use variations in pulse profile to study emission mechanism and intergalactic medium Scattering Thornton et al 2013 Ravi & Shannon 2013

25 SKA era: cosmological probes Missing Baryon problem SKA white paper Cosmic rulers Probe intergalactic medium SKA Organization

26 Conclusions FRBs are short-duration radio bursts whose large dispersion measures suggest that they are of extragalactic origin. Roughly 10 4 FRBs occur each day across the entire sky The astrophysical origin of these bursts is unknown Huge amount of work to expand our knowledge through realtime surveys and expanding the fields-of-view.

27 Perytons: Caused by microwave ovens on Parkes site Petroff et al 2015: astro-ph/ Can be generated when the microwave door is opened while microwave is still running.

SETI and Fast Radio Bursts

SETI and Fast Radio Bursts SETI and Fast Radio Bursts Dr. Emily Petroff ASTRON ASTRON SETI Meeting 15 March, 2016 SETI and Fast Radio Bursts Dr. Emily Petroff ASTRON ASTRON SETI Meeting 15 March, 2016 General Outline Introduction

More information

Fast Radio Bursts. The chase is on. Sarah Burke Spolaor National Radio Astronomy Observatory

Fast Radio Bursts. The chase is on. Sarah Burke Spolaor National Radio Astronomy Observatory Fast Radio Bursts The chase is on. Sarah Burke Spolaor National Radio Astronomy Observatory with C. Law, G. Bower, B. Butler, P. Demorest, J. Lazio, M. Rupen, many others S P A C E S P A C E f At source

More information

FRB : A Repeating Fast Radio Burst. Laura Spitler 20. June 2016 Bonn Workshop IX

FRB : A Repeating Fast Radio Burst. Laura Spitler 20. June 2016 Bonn Workshop IX FRB 121102: A Repeating Fast Radio Burst Laura Spitler 20. June 2016 Bonn Workshop IX 1 Fast Radio Bursts (FRB): An Overview 17 Published Sources Parkes (15) Arecibo (1) GBT (1) Broadband radio pulses

More information

Fast Radio Bursts: Recent discoveries and future prospects

Fast Radio Bursts: Recent discoveries and future prospects Fast Radio Bursts: Recent discoveries and future prospects Dr. ASTRON The Broad Impact of Low Frequency Observing Bologna, Italy 23 June, 2017 @ebpetroff www.ebpetroff.com Transient parameter space Macquart+15

More information

FAST RADIO BURSTS. Marta Burgay

FAST RADIO BURSTS. Marta Burgay FAST RADIO BURSTS Marta Burgay 1967: THE FIRST FAST RADIO BURSTS' Jocelyn Bell set the field going in 1967 by discovering pulsars through their time-variable bursts of emission SEARCHES FOR PSRS AND FAST

More information

The Mystery of Fast Radio Bursts and its possible resolution. Pawan Kumar

The Mystery of Fast Radio Bursts and its possible resolution. Pawan Kumar The Mystery of Fast Radio Bursts and its possible resolution Outline Pawan Kumar FRBs: summary of relevant observations Radiation mechanism and polarization FRB cosmology Wenbin Lu Niels Bohr Institute,

More information

Cosmological Fast Radio Bursts from Binary White Dwarf Mergers

Cosmological Fast Radio Bursts from Binary White Dwarf Mergers Cosmological Fast Radio Bursts from Binary White Dwarf Mergers Kunihito Ioka (KEK) Kashiyama, KI & Mészáros 13 ~10 yr ago GRB Cosmology Massive star origin High redshift GRBs Like QSO Like SN Star formation

More information

arxiv: v1 [astro-ph.he] 24 Nov 2015

arxiv: v1 [astro-ph.he] 24 Nov 2015 Mon. Not. R. Astron. Soc. 000, 1 5 (2015) Printed 25 November 2015 (MN LATEX style file v2.2) arxiv:1511.07746v1 [astro-ph.he] 24 Nov 2015 Five new Fast Radio Bursts from the HTRU high latitude survey:

More information

arxiv: v1 [astro-ph.he] 21 Dec 2018

arxiv: v1 [astro-ph.he] 21 Dec 2018 J. Astrophys. Astr. (0000) 000: #### DOI Prospects of detecting Fast Radio Bursts using Indian Radio Telescopes Siddhartha Bhattacharyya 1,* 1 Department of Physics, Indian Institute of Technology, Kharagpur,

More information

The FRB Population: Observations and Theory

The FRB Population: Observations and Theory The FRB Population: Observations and Theory Dr. Emily Petroff ASTRON Aspen Winter Conference on FRBs 12 February, 2017 @ebpetroff www.ebpetroff.com What do we talk about when we talk about population 26

More information

Radio Aspects of the Transient Universe

Radio Aspects of the Transient Universe Radio Aspects of the Transient Universe Time domain science: the transient sky = frontier for all λλ Less so at high energies BATSE, RXTE/ASM, Beppo/Sax, SWIFT, etc. More so for optical, radio LSST = Large

More information

CHIME/FRB. Shriharsh Tendulkar. Photo credit: Andre Recnik

CHIME/FRB. Shriharsh Tendulkar. Photo credit: Andre Recnik CHIME/FRB Shriharsh Tendulkar Photo credit: Andre Recnik Fast Radio Bursts CHIME/FRB Capabilities Current Status Recent Results Synergies 2 WHAT ARE FRBS? Very short (~ms), very bright (~Jansky), radio

More information

1. GAMMA-RAY BURSTS & 2. FAST RADIO BURSTS

1. GAMMA-RAY BURSTS & 2. FAST RADIO BURSTS 1. GAMMA-RAY BURSTS & 2. FAST RADIO BURSTS WITH TAM, Pak Hin (Sun Yat-sen University/ICRR) GAMMA-RAY BURST OBSERVATIONS WITH CTA LESSONS LEARNT FROM FERMI/LAT TAM, Pak Hin (Sun Yat-sen University/ICRR,

More information

arxiv: v1 [astro-ph.he] 20 Aug 2015

arxiv: v1 [astro-ph.he] 20 Aug 2015 Mon. Not. R. Astron. Soc. 000, 000 000 (0000) Printed 10 July 2018 (MN LATEX style file v2.2) A survey of FRB fields: Limits on repeatability arxiv:1508.04884v1 [astro-ph.he] 20 Aug 2015 E. Petroff 1,2,3,

More information

FRBs, Perytons, and the hunts for their origins

FRBs, Perytons, and the hunts for their origins FRBs, Perytons, and the hunts for their origins Dr. Emily Petroff ASTRON Labyrinth of the Unexpected Kerastari, Greece 31 May, 2017 @ebpetroff www.ebpetroff.com Introduction to FRBs Bright, short radio

More information

Fast Radio Bursts - I: Initial Cogitation

Fast Radio Bursts - I: Initial Cogitation Mon. Not. R. Astron. Soc. 000, 000 000 (0000) Printed 23 September 2014 (MN LATEX style file v2.2) Fast Radio Bursts - I: Initial Cogitation E.F. Keane 1,2 1 Centre for Astrophysics and Supercomputing,

More information

Fast Radio Transients and Next- Generation Instruments In Search of the Rare and Elusive. Jean-Pierre Macquart

Fast Radio Transients and Next- Generation Instruments In Search of the Rare and Elusive. Jean-Pierre Macquart Fast Radio Transients and Next- Generation Instruments In Search of the Rare and Elusive Jean-Pierre Macquart Scientific Motivation Fast timescale transients probe high brightness temperature emission

More information

Pulsars. Table of Contents. Introduction

Pulsars. Table of Contents. Introduction Pulsars Table of Contents Introduction... 1 Discovery...2 Observation...2 Binary Pulsars...3 Pulsar Classes... 3 The Significance of Pulsars... 3 Sources...4 Introduction Pulsars are neutron stars which

More information

Pulsars and Radio Transients. Scott Ransom National Radio Astronomy Observatory / University of Virginia

Pulsars and Radio Transients. Scott Ransom National Radio Astronomy Observatory / University of Virginia Pulsars and Radio Transients Scott Ransom National Radio Astronomy Observatory / University of Virginia TIARA Summer School on Radio Astronomy 2016 Radio Transients Non-thermal emission Emission types

More information

arxiv: v1 [astro-ph.he] 24 Dec 2015

arxiv: v1 [astro-ph.he] 24 Dec 2015 Testing Einstein s Equivalence Principle with Fast Radio Bursts arxiv:1512.07670v1 [astro-ph.he] 24 Dec 2015 Jun-Jie Wei 1, He Gao 2, Xue-Feng Wu 1,3, and Peter Mészáros 4,5,6 1 Purple Mountain Observatory,

More information

Discovery of fast radio transients at very low frequencies

Discovery of fast radio transients at very low frequencies Discovery of fast radio transients at very low frequencies Yogesh Maan National Centre for Radio Astrophysics (NCRA), Pune, INDIA June 02, 2015 Yogesh Maan (NCRA) June 02, 2015 1 / 22 Overview 1 Motivations

More information

FAST RADIO BURSTS. Marta Burgay

FAST RADIO BURSTS. Marta Burgay FAST RADIO BURSTS Marta Burgay TRANSIENT RADIO SKY AT MS-TIMESCALES Giant pulses from young PSRs Transient magnetars Rotating RAdio Transients (RRATs) Radio pulses emitted by rotating galactic NSs A SURPRISING

More information

Fermi: Highlights of GeV Gamma-ray Astronomy

Fermi: Highlights of GeV Gamma-ray Astronomy Fermi: Highlights of GeV Gamma-ray Astronomy Dave Thompson NASA GSFC On behalf of the Fermi Gamma-ray Space Telescope Large Area Telescope Collaboration Neutrino Oscillation Workshop Otranto, Lecce, Italy

More information

The Dynamic Radio Sky

The Dynamic Radio Sky The Dynamic Radio Sky Exoplanet Bursts, Lunar Neutrinos, and other Exotica Joseph Lazio (Naval Research Laboratory SKA Program Development Office) Who Cares? Radio transients are like butterfly collecting.

More information

A Population of Fast Radio Bursts at Cosmological Distances

A Population of Fast Radio Bursts at Cosmological Distances A Population of Fast Radio Bursts at Cosmological Distances D. Thornton, 1,2* B. Stappers, 1 M. Bailes, 3,4 B. Barsdell, 3,4 S. Bates, 5 N. D. R. Bhat, 3,4,6 M. Burgay, 7 S. Burke-Spolaor, 8 D. J. Champion,

More information

The Eight-meter-wavelength Transient Array

The Eight-meter-wavelength Transient Array The Eight-meter-wavelength Transient Array Steve Ellingson Cameron Patterson John Simonetti Dept. of Electrical & Computer Engineering Dept. of Electrical & Computer Engineering Dept. of Physics Virginia

More information

Pulsar Surveys Present and Future: The Arecibo-PALFA Survey and Projected SKA Survey

Pulsar Surveys Present and Future: The Arecibo-PALFA Survey and Projected SKA Survey Pulsar Surveys Present and Future: The Arecibo-PALFA Survey and Projected SKA Survey Arecibo Telescope SKA concept design Julia Deneva,, Cornell University, USA 15 May 2006 363 rd Heraeus Seminar, Bad

More information

Cosmic Explosions. Greg Taylor (UNM ) Astro 421

Cosmic Explosions. Greg Taylor (UNM ) Astro 421 Cosmic Explosions Greg Taylor (UNM ) Astro 421 1 Cassiopeia A: Supernova Remnant E total ~ 10 46 J 2 An early gamma ray-burst Vela satellite 3 A Gamma Ray Burst Sampler 4 Burst Alert 5 The BeppoSAX Satellite

More information

Study of Large-Scale Galactic Magnetic Fields at Low Frequencies. Jana Köhler - MPIfR -

Study of Large-Scale Galactic Magnetic Fields at Low Frequencies. Jana Köhler - MPIfR - Study of Large-Scale Galactic Magnetic Fields at Low Frequencies Jana Köhler - MPIfR - How to measure Magnetic Fields??? How to measure Galactic Magnetic Field? Linear Polarization of Starlight product

More information

A SEARCH FOR FAST RADIO BURSTS WITH THE GBNCC SURVEY. PRAGYA CHAWLA McGill University (On Behalf of the GBNCC Collaboration)

A SEARCH FOR FAST RADIO BURSTS WITH THE GBNCC SURVEY. PRAGYA CHAWLA McGill University (On Behalf of the GBNCC Collaboration) A SEARCH FOR FAST RADIO BURSTS WITH THE GBNCC SURVEY PRAGYA CHAWLA McGill University (On Behalf of the GBNCC Collaboration) P. Chawla 1, V. M. Kaspi 1, A. Josephy 1, K. M. Rajwade 2, D. R. Lorimer 2,3,

More information

Recent Radio Observations of Pulsars

Recent Radio Observations of Pulsars Recent Radio Observations of Pulsars R. N. Manchester Australia Telescope National Facility, CSIRO Sydney Australia Summary A pulsar census Recent pulsar surveys Pulse modulation and drifting subpulses

More information

LOFAR Key Science Projects and Science Network in Germany

LOFAR Key Science Projects and Science Network in Germany LOFAR Key Science Projects and Science Network in Germany Rainer Beck MPIfR Bonn LOFAR A revolution in radio telescope design: Software telescope: no moving parts, no mirrors, simultaneous multi-beaming,

More information

The (obscene) Challenges of Next-Generation Pulsar Surveys

The (obscene) Challenges of Next-Generation Pulsar Surveys The (obscene) Challenges of Next-Generation Pulsar Surveys Scott Ransom NRAO / Univ. of Virginia Charlottesville, VA Haslam 408MHz Survey Summary: The Pulsar Search Problem Pulsars are faint we are sensitivity

More information

arxiv: v1 [astro-ph.he] 23 Nov 2018

arxiv: v1 [astro-ph.he] 23 Nov 2018 DRAFT VERSION NOVEMBER 26, 218 Typeset using L A TEX twocolumn style in AASTeX62 The Energy Function and Cosmic Formation Rate of Fast Radio Bursts CAN-MIN DENG, 1, 2 JUN-JIE WEI, 1 AND XUE-FENG WU 1,

More information

What we (don t) know about UHECRs

What we (don t) know about UHECRs What we (don t) know about UHECRs We know: their energies (up to 10 20 ev). their overall energy spectrum We don t know: where they are produced how they are produced what they are made off exact shape

More information

FRB emission mechanisms. Maxim Lyutikov (Purdue, McGill)

FRB emission mechanisms. Maxim Lyutikov (Purdue, McGill) FRB emission mechanisms Maxim Lyutikov (Purdue, McGill) 2 What FRBs are not msecs long (not AGNe) > 10 4 per day (not prompt GRBs) repetitive (not catastrophic events like NS-NS mergers) isotropic (extra-galactic);

More information

Radio Transients, Stellar End Products, and SETI Working Group Report

Radio Transients, Stellar End Products, and SETI Working Group Report Radio Transients, Stellar End Products, and SETI Working Group Report J. Lazio (chair), D.Backer,J.Cordes,J.Jonas,M.Kramer,M.Rupen,J.Tarter March 22, 2002 1 Science Projects This WG has identified the

More information

Discovery of two pulsars towards the Galactic Centre

Discovery of two pulsars towards the Galactic Centre Mon. Not. R. Astron. Soc. 373, L6 L10 (2006) doi:10.1111/j.1745-3933.2006.00232.x Discovery of two pulsars towards the Galactic Centre Simon Johnston, 1 M. Kramer, 2 D. R. Lorimer, 2 A. G. Lyne, 2 M. McLaughlin,

More information

Pulsars with LOFAR The Low-Frequency Array

Pulsars with LOFAR The Low-Frequency Array Pulsars with LOFAR The Low-Frequency Array Ben Stappers ASTRON, Dwingeloo With assistance from Jason Hessels,, Michael Kramer, Joeri van Leeuwen and Dan Stinebring. Next generation radio telescope Telescope

More information

Cherenkov Telescope Array ELINA LINDFORS, TUORLA OBSERVATORY ON BEHALF OF CTA CONSORTIUM, TAUP

Cherenkov Telescope Array ELINA LINDFORS, TUORLA OBSERVATORY ON BEHALF OF CTA CONSORTIUM, TAUP Cherenkov Telescope Array A SENSITIVE PROBE OF EXTREME UNIVERSE ELINA LINDFORS, TUORLA OBSERVATORY ON BEHALF OF CTA CONSORTIUM, TAUP 2015 1 The CTA Observatory SST ( 4m) LST ( 23m) MST ( 12m) South North

More information

The Dynamic Radio Sky: On the path to the SKA. A/Prof Tara Murphy ARC Future Fellow

The Dynamic Radio Sky: On the path to the SKA. A/Prof Tara Murphy ARC Future Fellow The Dynamic Radio Sky: On the path to the SKA A/Prof Tara Murphy ARC Future Fellow What causes radio variability? 1. Explosions - e.g. supernovae, gamma-ray bursts, orphan afterglows 2. Propagation - e.g.

More information

G-ALFA Continuum Transit Survey GALFACTS. E. Momjian Prepared by A.R. Taylor for the GALFA Continuum Consortium

G-ALFA Continuum Transit Survey GALFACTS. E. Momjian Prepared by A.R. Taylor for the GALFA Continuum Consortium G-ALFA Continuum Transit Survey GALFACTS E. Momjian Prepared by A.R. Taylor for the GALFA Continuum Consortium GALFA Continuum Consortium Christy Bredeson Jo-Anne Brown Mike Davis Avinash Deshpande Tyler

More information

arxiv: v1 [astro-ph.he] 1 Nov 2018

arxiv: v1 [astro-ph.he] 1 Nov 2018 What are Fast Radio Bursts? Ue-Li Pen 1 1 Canadian Institute for Theoretical Astrophysics, University of Toronto, Ontario, Canada. arxiv:1811.00605v1 [astro-ph.he] 1 Nov 2018 E-mail: pen@cita.utoronto.ca

More information

ETA Observations of Crab Pulsar Giant Pulses

ETA Observations of Crab Pulsar Giant Pulses ETA Observations of Crab Pulsar Giant Pulses John Simonetti,, Dept of Physics, Virginia Tech October 7, 2005 Pulsars Crab Pulsar Crab Giant Pulses Observing Pulses --- Propagation Effects Summary Pulsars

More information

Radio Transients with Apertif Joeri van Leeuwen

Radio Transients with Apertif Joeri van Leeuwen Radio Transients with Apertif Joeri van Leeuwen [ movie at alert.eu.org ] Apertif Phased Array Feeds 1.4 GHz, 300 MHz bandwidth, T sys = 70K Apertif WSRT: Increased field of view 8.7 sq. deg. instantaneously

More information

The Discovery of Gamma-Ray Bursts

The Discovery of Gamma-Ray Bursts The Discovery of Gamma-Ray Bursts The serendipitous discovery of Gamma-Ray Bursts (GRBs) in the late sixties puzzled astronomers for several decades: GRBs are pulses of gamma-ray radiation (typically lasting

More information

THE HIGH TIME RESOLUTION UNIVERSE. A survey for pulsars & fast transients

THE HIGH TIME RESOLUTION UNIVERSE. A survey for pulsars & fast transients THE HIGH TIME RESOLUTION UNIVERSE A survey for pulsars & fast transients 1 REVIEW OF HTRU 2 SURVEY OVERVIEW The High Time Resolution Universe survey for pulsars and fast transients -- HTRU An ambitious

More information

=> most distant, high redshift Universe!? Consortium of international partners

=> most distant, high redshift Universe!? Consortium of international partners LOFAR LOw Frequency Array => most distant, high redshift Universe!? Consortium of international partners Dutch ASTRON USA Haystack Observatory (MIT) USA Naval Research Lab `best site = WA Novel `technology

More information

Gamma Ray Bursts. Progress & Prospects. Resmi Lekshmi. Indian Institute of Space Science & Technology Trivandrum

Gamma Ray Bursts. Progress & Prospects. Resmi Lekshmi. Indian Institute of Space Science & Technology Trivandrum Gamma Ray Bursts Progress & Prospects Resmi Lekshmi Indian Institute of Space Science & Technology Trivandrum Why study GRBs? to study GRBs end stages of massive star evolution jet launching, collimation

More information

SKA Scientific Memorandum: Telescope Response Times. T. Joseph W. Lazio & James M. Cordes

SKA Scientific Memorandum: Telescope Response Times. T. Joseph W. Lazio & James M. Cordes SKA Scientific Memorandum: Telescope Response Times T. Joseph W. Lazio & James M. Cordes CONTENTS EXECUTIVE SUMMARY..................................... E-1 1. INTRODUCTION.........................................

More information

Advanced Topic in Astrophysics Lecture 1 Radio Astronomy - Antennas & Imaging

Advanced Topic in Astrophysics Lecture 1 Radio Astronomy - Antennas & Imaging Advanced Topic in Astrophysics Lecture 1 Radio Astronomy - Antennas & Imaging Course Structure Modules Module 1, lectures 1-6 (Lister Staveley-Smith, Richard Dodson, Maria Rioja) Mon Wed Fri 1pm weeks

More information

Survey for Pulsars and Extra-galactic Radio Bursts

Survey for Pulsars and Extra-galactic Radio Bursts Survey for Pulsars and Extra-galactic Radio Bursts Ewan Barr SKA Senior Research Fellow, Credit & Shaun Amy Credit & Shaun Amy HTRU Discoveries Radio loud magnetar (Levin et al. 2010) Fast Radio Bursts

More information

Multi-wavelength Astronomy

Multi-wavelength Astronomy astronomy Multi-wavelength Astronomy Content What do we measure Multi-wavelength approach Data Data Mining Virtual Observatory Hands on session Larmor's formula Maxwell's equations imply that all classical

More information

arxiv:astro-ph/ v1 10 Nov 1999

arxiv:astro-ph/ v1 10 Nov 1999 Pulsar Astronomy 2000 and Beyond ASP Conference Series, Vol. e iπ + 1, 2000 M. Kramer, N. Wex, and R. Wielebinski, eds. The Parkes Multibeam Pulsar Survey arxiv:astro-ph/9911185v1 10 Nov 1999 F. Camilo

More information

SCIENTIFIC CASES FOR RECEIVERS UNDER DEVELOPMENT (OR UNDER EVALUATION)

SCIENTIFIC CASES FOR RECEIVERS UNDER DEVELOPMENT (OR UNDER EVALUATION) SCIENTIFIC CASES FOR RECEIVERS UNDER DEVELOPMENT (OR UNDER EVALUATION) C.STANGHELLINI (INAF-IRA) Part I Infrastructure 1 Main characteristics and status of the Italian radio telescopes 2 Back-ends, opacity

More information

Fast Radio Burts - a literature review

Fast Radio Burts - a literature review Dept. Physics and Astronomy, PhD Literature Review (2014) Printed 31 January 2014 (MN LATEX style file v2.2) Fast Radio Burts - a literature review L. K. Hardy 1 1 Department of Physics and Astronomy,

More information

Extreme high-energy variability of Markarian 421

Extreme high-energy variability of Markarian 421 Extreme high-energy variability of Markarian 421 Mrk 421 an extreme blazar Previous observations outstanding science issues 2001 Observations by VERITAS/Whipple 10 m 2001 Light Curve Energy spectrum is

More information

Relativistic jets from XRBs with LOFAR. Stéphane Corbel (University Paris 7 & CEA Saclay)

Relativistic jets from XRBs with LOFAR. Stéphane Corbel (University Paris 7 & CEA Saclay) Relativistic jets from XRBs with LOFAR. Stéphane Corbel (University Paris 7 & CEA Saclay) Outline Introduction: X-ray binaries and flavors of relativistic jets LOFAR Contributions Conclusions Introduction:

More information

arxiv: v1 [astro-ph.he] 10 Oct 2018

arxiv: v1 [astro-ph.he] 10 Oct 2018 Draft version October 11, 218 Typeset using LATEX twocolumn style in AASTeX61 THE SPECTRAL PROPERTIES OF THE BRIGHT FRB POPULATION J.-P. Macquart, 1, 2 R. M. Shannon, 3 K. W. Bannister, 4 C. W. James,

More information

Why this hole in Puerto Rico? Centaurus A NGC5128 Radio continuum. Incoherent Scatter Radar (430 MHz) Hours. Proceedings of IRE Nov 1958

Why this hole in Puerto Rico? Centaurus A NGC5128 Radio continuum. Incoherent Scatter Radar (430 MHz) Hours. Proceedings of IRE Nov 1958 Arecibo San Juan Mayaguez Daniel R. Altschuler NAIC-Arecibo Observatory Ponce The Arecibo Observatory is Part of NAIC which is operated by Cornell University under a cooperative agreement with the NSF

More information

Mike Garrett. Sir Bernard Lovell Chair, Prof. of Astrophysics. Director Jodrell Bank Centre for Astrophysics

Mike Garrett. Sir Bernard Lovell Chair, Prof. of Astrophysics. Director Jodrell Bank Centre for Astrophysics The Search for Extraterrestrial Intelligence (SETI) All-sky Radio Mike Garrett SETI Sir Bernard Lovell Chair, Prof. of Astrophysics. Director Jodrell Bank Centre for Astrophysics Mike Garrett Sir Bernard

More information

Observing transients with LOFAR and AARTFAAC

Observing transients with LOFAR and AARTFAAC Astronomical Institute "Anton Pannekoek", University of Amsterdam, Postbus 94249, 1090 GE Amsterdam, The Netherlands E-mail: b.a.rowlinson@uva.nl The Low Frequency Array (LOFAR) is a new European radio

More information

Extreme optical outbursts from a magnetar-like transient source: SWIFT J

Extreme optical outbursts from a magnetar-like transient source: SWIFT J Extreme optical outbursts from a magnetar-like transient source: SWIFT J1955+26 Gottfried Kanbach 1 Alexander Stefanescu 1,2 Agnieszka Słowikowska 3 Jochen Greiner 1 Sheila McBreen 4 Glòria Sala 5 1 Max-Planck-Institut

More information

HI Galaxy Science with SKA1. Erwin de Blok (ASTRON, NL) on behalf of The HI Science Working Group

HI Galaxy Science with SKA1. Erwin de Blok (ASTRON, NL) on behalf of The HI Science Working Group HI Galaxy Science with SKA1 Erwin de Blok (ASTRON, NL) on behalf of The HI Science Working Group SKA1 HI Science Priorities Resolved HI kinematics and morphology of ~10 10 M mass galaxies out to z~0.8

More information

Estimate of an environmental magnetic field of fast radio bursts

Estimate of an environmental magnetic field of fast radio bursts Research in Astron. Astrophys. 20XX Vol. X No. XX, 000 000 http://www.raa-journal.org http://www.iop.org/journals/raa Research in Astronomy and Astrophysics Estimate of an environmental magnetic field

More information

Transient Cosmic Phenomena and their Influence on the Design of the SKA Radio Telescope

Transient Cosmic Phenomena and their Influence on the Design of the SKA Radio Telescope Transient Cosmic Phenomena and their Influence on the Design of the SKA Radio Telescope Research Review Curtin Institute of Radio Astronomy 5 May 2009 ToC Parameter space Discovering phenomena ASKAP &

More information

Wide-Field Radio Astronomy and the Dynamic Universe

Wide-Field Radio Astronomy and the Dynamic Universe CSIRO / Swinburne ; NASA Wide-Field Radio Astronomy and the Dynamic Universe Bryan Gaensler / @SciBry! Dunlap Institute! University of Toronto! with Cleo Loi, Kitty Lo,! Martin Bell, Keith Bannister,!

More information

German LOFAR a new era in radio astronomy

German LOFAR a new era in radio astronomy German LOFAR a new era in radio astronomy Marcus Brüggen International University Bremen Rainer Beck (MPIfR) Heino Falcke (ASTRON) Anton Zensus (MPIfR) Köln, 28. Sep 2005 Outline Why LOFAR? What is happening

More information

PoS(ISKAF2010)083. FRATs: a real-time search for Fast Radio Transients with LOFAR

PoS(ISKAF2010)083. FRATs: a real-time search for Fast Radio Transients with LOFAR FRATs: a real-time search for Fast Radio Transients with LOFAR Radboud University Nijmegen (Department of Astrophysics) E-mail: s.terveen@astro.ru.nl H. Falcke Radboud University Nijmegen (Department of

More information

Fast Transients with the Square Kilometre Array and its Pathfinders: An Indian Perspective

Fast Transients with the Square Kilometre Array and its Pathfinders: An Indian Perspective Review J. Astrophys. Astr. (2016) 37: 37 DOI: 10.1007/s12036-016-9412-y Fast Transients with the Square Kilometre Array and its Pathfinders: An Indian Perspective Yashwant Gupta 1,, Poonam Chandra 1, Manjari

More information

CTA SKA Synergies. Stefan Wagner Landessternwarte (CTA Project Office) Heidelberg

CTA SKA Synergies. Stefan Wagner Landessternwarte (CTA Project Office) Heidelberg CTA SKA Synergies Stefan Wagner Landessternwarte (CTA Project Office) Heidelberg CTA SKA Synergies Stefan Wagner Landessternwarte (CTA Project Office) Heidelberg CTA SKA Synergies CTA Science: How and

More information

Lobster X-ray Telescope Science. Julian Osborne

Lobster X-ray Telescope Science. Julian Osborne Lobster X-ray Telescope Science Julian Osborne What we want The whole high-energy sky right now 1.00E+13 1.00E+12 1 / f_lim (100 s) 1.00E+11 1.00E+10 1.00E+09 1.00E+08 0.0000001 0.000001 0.00001 0.0001

More information

arxiv: v3 [astro-ph.he] 22 Mar 2014

arxiv: v3 [astro-ph.he] 22 Mar 2014 Draft version March 25, 2014 Preprint typeset using L A TEX style emulateapj v. 5/2/11 PHYSICAL CONSTRAINTS ON FAST RADIO BURSTS Jing Luan & Peter Goldreich California Institute of Technology, Pasadena,

More information

Rotation Measure Synthesis of the Local Magnetized ISM

Rotation Measure Synthesis of the Local Magnetized ISM Rotation Measure Synthesis of the Local Magnetized ISM Maik Wolleben Covington Fellow, DRAO Outline Polarization, Faraday Rotation, and Rotation Measure Synthesis The Data: GMIMS The Global Magneto Ionic

More information

Ultra High Energy Cosmic Rays. UHECRs from Mildly Relativistic Supernovae

Ultra High Energy Cosmic Rays. UHECRs from Mildly Relativistic Supernovae Ultra High Energy Cosmic Rays from Mildly Relativistic Supernovae Tata Institute of Fundamental Research Mumbai, India March 13, 2012 Outline UHECRS Chakraborti, Ray, Soderberg, Loeb, Chandra 2011 Nature

More information

The Neutron Star Zoo. Stephen C.-Y. Ng ( 吳志勇 ) HKU

The Neutron Star Zoo. Stephen C.-Y. Ng ( 吳志勇 ) HKU The Neutron Star Zoo Stephen C.-Y. Ng ( 吳志勇 ) HKU Overview Introduction to neutron stars Different classes of neutron stars: Radio Pulsars MSPs Magnetars DINS CCOs Unification 6/12/2017 NAOC Stephen Ng

More information

arxiv: v1 [astro-ph] 14 Jul 2008

arxiv: v1 [astro-ph] 14 Jul 2008 Mon. Not. R. Astron. Soc. 000, 000 000 (0000) Printed 14 July 2008 (MN LATEX style file v2.2) A high frequency search for radio pulsars in three EGRET error boxes arxiv:0807.2088v1 [astro-ph] 14 Jul 2008

More information

Using Pulsars to study the Magnetic Field in The Milky way

Using Pulsars to study the Magnetic Field in The Milky way Using Pulsars to study the Magnetic Field in The Milky way Dipanjan Mitra ( MPIFR Bonn) R. Wielebinski ( MPIFR Bonn) M. Kramer ( Jodrell Bank) A. Jessner ( MPIFR Bonn) MPIFR, Bonn (24 th April 2003) To

More information

TeV Emission from Millisecond Pulsars in Compact Binaries? Mallory Roberts Eureka Scientific/NRL

TeV Emission from Millisecond Pulsars in Compact Binaries? Mallory Roberts Eureka Scientific/NRL TeV Emission from Millisecond Pulsars in Compact Binaries? Mallory Roberts Eureka Scientific/NRL Binary Period in Days Millisecond Pulsars Spun up by a low mass companion such that their spin period P

More information

One year of finding new radio pulsars with

One year of finding new radio pulsars with One year of finding new radio pulsars with Einstein@Home Benjamin Knispel flux density (mjy) 1.0 0.0 w 50 = 0.06P 0 = 1.3ms 0.0 0.5 1.0 pulse phase (turns) One year of finding new radio pulsars with Einstein@Home

More information

CHIME. Kendrick Smith on behalf of the CHIME collaboration Barcelona, September 2015

CHIME. Kendrick Smith on behalf of the CHIME collaboration Barcelona, September 2015 CHIME Kendrick Smith on behalf of the CHIME collaboration Barcelona, September 2015 *Mandana*Amiri* *Philippe*Berger* *Kevin*Bandura* *Dick*Bond* *JeanEFrancois*Cliche* *Liam*Connor* *Meiling*Deng* *Nolan*Denman*

More information

Thoughts on LWA/FASR Synergy

Thoughts on LWA/FASR Synergy Thoughts on LWA/FASR Synergy Namir Kassim Naval Research Laboratory 5/27/2003 LWA-FASR 1 Ionospheric Waves 74 MHz phase 74 MHz model Ionosphere unwound (Kassim et al. 1993) Ionospheric

More information

Detecting High Energy Cosmic Rays with LOFAR

Detecting High Energy Cosmic Rays with LOFAR Detecting High Energy Cosmic Rays with LOFAR Andreas Horneffer for the LOFAR-CR Team LOFAR CR-KSP: Main Motivation Exploring the sub-second transient radio sky: Extensive Air showers as guaranteed signal

More information

The pulsar population and PSR/FRB searches with MeerKAT Slow boring pulsars

The pulsar population and PSR/FRB searches with MeerKAT Slow boring pulsars The pulsar population and PSR/FRB searches with MeerKAT Slow boring pulsars Aris Karastergiou with contributions from Simon Johnston, Ben Stappers and the TRAPUM team P and Pdot are the observables. Lines

More information

Ultra High Energy Cosmic Rays I

Ultra High Energy Cosmic Rays I Ultra High Energy Cosmic Rays I John Linsley (PRL 10 (1963) 146) reports on the detection in Vulcano Ranch of an air shower of energy above 1020 ev. Problem: the microwave background radiation is discovered

More information

Gamma-ray observations of millisecond pulsars with the Fermi LAT. Lucas Guillemot, MPIfR Bonn. NS2012 in Bonn 27/02/12.

Gamma-ray observations of millisecond pulsars with the Fermi LAT. Lucas Guillemot, MPIfR Bonn. NS2012 in Bonn 27/02/12. Gamma-ray observations of millisecond pulsars with the Fermi LAT Lucas Guillemot, MPIfR Bonn guillemo@mpifr-bonn.mpg.de NS2012 in Bonn 27/02/12 The Fermi Gamma-ray Space Telescope Fermi = Large Area Telescope

More information

Fast Transients: A Tutorial. Dale A. Frail NRAO

Fast Transients: A Tutorial. Dale A. Frail NRAO Fast Transients: A Tutorial Dale A. Frail NRAO Tutorial Outline 1. Fast transients What are they and why are they interesting now? 2. Optimal Search Strategies The problem and some recent progress 3. Fast

More information

Radio Afterglows. What Good are They? Dale A. Frail. National Radio Astronomy Observatory. Gamma Ray Bursts: The Brightest Explosions in the Universe

Radio Afterglows. What Good are They? Dale A. Frail. National Radio Astronomy Observatory. Gamma Ray Bursts: The Brightest Explosions in the Universe Radio Afterglows What Good are They? Dale A. Frail National Radio Astronomy Observatory Gamma Ray Bursts: The Brightest Explosions in the Universe The 2 nd Harvard-Smithsonian Conference on Theoretical

More information

High Energy Astrophysics

High Energy Astrophysics High Energy Astrophysics Gamma-ray Bursts Giampaolo Pisano Jodrell Bank Centre for Astrophysics - University of Manchester giampaolo.pisano@manchester.ac.uk May 2011 Gamma-ray Bursts - Observations - Long-duration

More information

Radio counterparts of gamma-ray pulsars

Radio counterparts of gamma-ray pulsars Radio counterparts of gamma-ray pulsars Lucas Guillemot, MPIfR Bonn guillemo@mpifr-bonn.mpg.de on behalf of the Fermi LAT Collaboration IAU Symposium 2012, Beijing 20/08/12 117 gamma-ray pulsars! 41 young

More information

A real-time fast radio burst: polarization detection and multiwavelength follow-up

A real-time fast radio burst: polarization detection and multiwavelength follow-up doi:10.1093/mnras/stu2419 A real-time fast radio burst: polarization detection and multiwavelength follow-up E. Petroff, 1,2,3 M. Bailes, 1,3 E. D. Barr, 1,3 B. R. Barsdell, 4 N. D. R. Bhat, 3,5 F. Bian,

More information

An Introduction to ASKAP Bringing Radio Interferometers Into the Multi-pixel Era

An Introduction to ASKAP Bringing Radio Interferometers Into the Multi-pixel Era An Introduction to ASKAP Bringing Radio Interferometers Into the Multi-pixel Era Aidan Hotan and Lisa Harvey-Smith 3 rd October 2014 CSIRO ASTRONOMY AND SPACE SCIENCE Introducing ASKAP The Australian SKA

More information

What are the Big Questions and how can Radio Telescopes help answer them? Roger Blandford KIPAC Stanford

What are the Big Questions and how can Radio Telescopes help answer them? Roger Blandford KIPAC Stanford What are the Big Questions and how can Radio Telescopes help answer them? Roger Blandford KIPAC Stanford Radio Astronomy in 1957 ~100 MHz ~100 Jy ~100 sources ~100 arcseconds 2 Radio Astronomy in 2007

More information

arxiv: v1 [astro-ph.im] 30 Oct 2012

arxiv: v1 [astro-ph.im] 30 Oct 2012 Neutron Stars and Pulsars: Challenges and Opportunities after 80 years Proceedings IAU Symposium No. 291, 2012 c 2012 International Astronomical Union J. van Leeuwen, ed. DOI: 00.0000/X000000000000000X

More information

154 MHz detection of faint, polarised flares from UV Ceti

154 MHz detection of faint, polarised flares from UV Ceti 154 MHz detection of faint, polarised flares from UV Ceti Christene Lynch University of Sydney/CAASTRO Collaborators: Emil Lenc, University of Sydney/CAASTRO Tara Murphy, University of Sydney/CAASTRO David

More information

Rob Fender, Ben Stappers and Ralph Wijers on behalf of LOFAR and the Transients Key Science Project

Rob Fender, Ben Stappers and Ralph Wijers on behalf of LOFAR and the Transients Key Science Project Quiquid variat notandum Rob Fender, Ben Stappers and Ralph Wijers on behalf of LOFAR and the Transients Key Science Project RAMJW 1 LOFAR: surveyor and transient monitor (SCUBA-2, ALMA fields of view smaller

More information

Gravitational Wave Burst Searches

Gravitational Wave Burst Searches Gravitational Wave Burst Searches Peter Shawhan For the LIGO Scientific Collaboration and Virgo Collaboration Gravitational Waves 2010 University of Minnesota October 16, 2010 LIGO-G1000998-v3 Worldwide

More information

The Impact of Positional Uncertainty on Gamma-Ray Burst Environment Studies

The Impact of Positional Uncertainty on Gamma-Ray Burst Environment Studies The Impact of Positional Uncertainty on Gamma-Ray Burst Environment Studies Peter Blanchard Harvard University In collaboration with Edo Berger and Wen-fai Fong arxiv:1509.07866 Topics in AstroStatistics

More information

- Synchrotron emission from power Law electron energy distributions

- Synchrotron emission from power Law electron energy distributions - Spectrum of synchrotron emission from a single electron - Synchrotron emission from power Law electron energy distributions - Synchrotron self absorption - Polarization of synchrotron emission - Synchrotron

More information

Phased Array Feed Development for the SKA. SKA AIP Meeting 8 June 2017 PAF Consortium

Phased Array Feed Development for the SKA. SKA AIP Meeting 8 June 2017 PAF Consortium Phased Array Feed Development for the SKA SKA AIP Meeting 8 June 2017 PAF Consortium Outline Consortium Overview R&D Activities Pharos2 Rocket Array & ASKAP Commissioning PAFs in China MPIfR Science Design

More information