High Energy Emission. Brenda Dingus, LANL HAWC
|
|
- Margaret Watts
- 5 years ago
- Views:
Transcription
1 High Energy Emission from GRBs Brenda Dingus, LANL HAWC
2 What are GRBs? Cosmological distance Typical observed z>1 Energy released is up to few times the rest mass of Sun (if isotropic) in a few seconds => narrow beam Most of the energy is emitted in rays Relativistically expanding fireball Shocks between shells of different velocity Shocks created when fireball decelerates into external medium Central Engine Collapse of massive, rotating star? (long GRBs) Coalescence of binary neutron stars? (short GRBs) Final Product is Black Hole (probably) 2
3 High Energy Emission from GRB (Past) EGRET observations of delayed HE gamma ray emissions It is not straightforward to explain by conventional electron synchrotron models Proton acceleration? Origin of UHECR? Gonzalez et al. Nature 2003 BATSE s EGRET/TASC 14 47s Hurley et al. Nature s Two γ 18 GeV ~T0+75 min s s 3 /22
4 Fermi LAT Detected Bursts Granot, astroph
5 Highest Energy Requires Large Bulk Lorentz Factor Gamma Rays attenuated at the source by + > e + e + peak cross section when E 1 E 2 ~ 4 m e 2 c 4 / (1 cos ) Density of photons is high as inferred from source distance & rapid variability No attenuation if emission is from fireball with large bulk Lorentz factor Decrease Energy of Gamma Rays Reduce Number of Photons Increase the source size Bulk Lorentz factor,, required to give opacity of 1 for the highest E -ray observed For reference, AGN jets have Lithwick & Sari Mar 10 dingus@lanl.gov 5
6 GRB Bulk Lorentz Factors > ~1000
7 Extragalactic ray Absorption High energy gamma rays pair produce with the infrared to UV extragalactic background light (EBL) EBL not well constrained by direct measurements due to zodiacal light, but is constrained by galaxy and star formation history Low ray absorption possibly explained by axions? e - ~TeV e + ~ev
8 EBL evolves with redshift Kneiske, et al A&A
9 Optical Depth evolves with redshift
10 Highest Energy Gamma Rays vs EBL models , 13 GeV , 33 GeV , 31 GeV
11 Fundamental Physics with rays Test of Lorentz Invariance which is predicted by some quantum gravity theories v = c(1 ± E /E QG + O[(E /E QG ) 2 ]) E QG ~ Planck mass ~ GeV Compare light curve at different energies Need several sources at different redshift to disentangle effects of ray production in the source However, a single observation can give a limit on E QG If E QG = M Planck, then a light seconds, and E = 100 GeV=10-17 M Planc should arrive 1 s late.
12 GRB This short GRB rules out theories of violation of Lorentz invariance which are linear in E /E QG where E QG < m planck
13 Going to Higher Energies from the Ground Atmospheric Cherenkov Telescopes (VERITAS, HESS, MAGIC) Low duty cycle of 5 10% due to moonless, cloud free night time observations Require notification to look in direction of GRB Prompt Localizations by Fermi GBM have larger uncertainty than the field of view of the ACT Slew times of tens of seconds are too long for short GRBs + Excellent sensitivity to lower energies Extensive Air Shower Observatories (Milagro, ARGO, HAWC) Worse sensitivity at lower energies + 24 hours/day, 7 days/week operation with > 95% duty factor + Large field of view of 2sr (~1/6 the sky) + Online analysis to send alerts if transient source is detected
14 HAWC High Altitude Water Cherenkov
15 HAWC Sensitivity is 15x Better than Milagro s (a) Larger Effective Area at Lowest Energies (b) Improved Background Rejection (c) Better Angular Resolution => x improvement in flux sensitivity => (10 15) 2 = x faster to observe same flux
16 HAWC s Low Energy Response Monte Carlo Simulation which has been confirmed with Milagro observations. Gamma ray air showers with angular reconstruction better than 1.5 degrees.
17 Extensive Air Shower Development 4100m 2600m Higher Altitude means fewer radiation lengths and more particles Fluctuations in first interaction means more particles For example 5% of events (e -3 =5%) will have 5 x more particles
18 HAWC & Fermi > 10 GeV Sensitivity Source Spectrum is dn/de = E 2 and is cutoff by absorption with the EBL model of Gilmore, 2009
19 HAWC s Field of View = 2.6 sr = 1.8 sr
20 HAWC GRB Capability GRB Z=0.9 Highest Observed Energy 33 GeV HAWC will detect with 5 sigma significance if spectrum extends to 50 GeV If spectrum extends to 125 GeV (and is attenuated by EBL model of Gilmore), then HAWC would detect 200 gammarays
21 Measuring the Max Energy with HAWC + Fermi
22 Future Prospects are Exciting More GRBs from Fermi to come (~1/month) Possible Afterglow or Long GRB detection by ACTs Likely Detection of Prompt Emission by HAWC HAWC is ready to go 1 st Tank Site is Ready
23 Active Galactic Nuclei Flares Correlations with x-rays, optical, radio to determine emission mechanisms Discovery potential for orphan TeV flares producing neutrinos and UHECR Milagro s 9 Mrk421 Milagro flux Quadratic or Linear? Synchrotron Self 1 month Compton or External Compton? Crab Flux X-ray flux
Milagro A TeV Observatory for Gamma Ray Bursts
Milagro A TeV Observatory for Gamma Ray Bursts B.L. Dingus and the Milagro Collaboration Los Alamos National Laboratory University of Maryland, University of California Santa Cruz, University of California
More informationPhysics of Short Gamma-Ray Bursts Explored by CTA and DECIGO/B-DECIGO
Physics of Short Gamma-Ray Bursts Explored by CTA and DECIGO/B-DECIGO Hiroyasu Tajima Institute for Space Earth Environmental Research Nagoya University 17th DECIGO Workshop Nov 1, 18 Nagoya University
More informationHAWC: A Next Generation All-Sky VHE Gamma-Ray Telescope
HAWC: A Next Generation All-Sky VHE Gamma-Ray Telescope VHE Astrophysics Energy range 10 GeV 10 TeV Non thermal processes in the universe Highly variable sources Particle acceleration Physics of extreme
More informationGamma-ray Astrophysics
Gamma-ray Astrophysics AGN Pulsar SNR GRB Radio Galaxy The very high energy -ray sky NEPPSR 25 Aug. 2004 Many thanks to Rene Ong at UCLA Guy Blaylock U. of Massachusetts Why gamma rays? Extragalactic Background
More informationVery High-Energy Gamma- Ray Astrophysics
Very High-Energy Gamma- Ray Astrophysics David A. Williams Santa Cruz Institute for Particle Physics UC Santa Cruz Quarknet July 12, 2013 Detecting High Energy Gamma Rays High Sensitivity HESS, MAGIC,
More information(Fermi observations of) High-energy emissions from gamma-ray bursts
(Fermi observations of) High-energy emissions from gamma-ray bursts Hiroyasu Tajima on behalf of Fermi LAT and GBM Collaborations Kavli Institute of Particle Astrophysics and Cosmology SLAC National Accelerator
More informationFermi: 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 informationCherenkov Telescope Array Status Report. Salvatore Mangano (CIEMAT) On behalf of the CTA consortium
Cherenkov Telescope Array Status Report Salvatore Mangano (CIEMAT) On behalf of the CTA consortium Outline Very-High-Energy Gamma-Ray Astronomy Cherenkov Telescope Array (CTA) Expected Performance of CTA
More information1. 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 informationOn the scientific motivation for a wide field-of-view TeV gamma-ray observatory in the Southern Hemisphere
On the scientific motivation for a wide field-of-view TeV gamma-ray observatory in the Southern Hemisphere for the HAWC collaboration E-mail: miguel@psu.edu Observations of high energy gamma rays are an
More informationExtreme 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 informationHigh-Energy Emission from GRBs: First Year Highlights from the Fermi Gamma-ray Space Telescope
High-Energy Emission from GRBs: First Year Highlights from the Fermi Gamma-ray Space Telescope Jonathan Granot University of Hertfordshire (Royal Society Wolfson Research Merit Award Holder) on behalf
More informationGalactic Sources with Milagro and HAWC. Jordan Goodman for the HAWC and Milagro Collaborations
Galactic Sources with Milagro and HAWC Jordan Goodman for the HAWC and Milagro Collaborations Snowpack 2010 Milagro and HAWC Milagro was a first generation wide-field gamma-ray telescope: Proposed in 1990
More informationCherenkov 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 informationTeV Future: APS White Paper
TeV Future: APS White Paper APS commissioned a white paper on the "Status and Future of very high energy gamma ray astronomy. For preliminary information, see http://cherenkov.physics.iastate.edu/wp Working
More informationVery-High-Energy Gamma-Ray Astronomy with VERITAS. Martin Schroedter Iowa State University
Very-High-Energy Gamma-Ray Astronomy with VERITAS Martin Schroedter Iowa State University Summary Very-high-energy astronomy began 20 years ago with 1 source. Now ~80 more VHE discoveries have been made
More informationConstraints on Extragalactic Background Light from Cherenkov telescopes: status and perspectives for the next 5 years
Constraints on Extragalactic Background Light from Cherenkov telescopes: status and perspectives for the next 5 years Daniel Mazin 1 and Martin Raue 2 1: IFAE, Barcelona 2: MPIK, Heidelberg This research
More informationParticle Acceleration in the Universe
Particle Acceleration in the Universe Hiroyasu Tajima Stanford Linear Accelerator Center Kavli Institute for Particle Astrophysics and Cosmology on behalf of SLAC GLAST team June 7, 2006 SLAC DOE HEP Program
More informationParticle Physics Beyond Laboratory Energies
Particle Physics Beyond Laboratory Energies Francis Halzen Wisconsin IceCube Particle Astrophysics Center Nature s accelerators have delivered the highest energy protons, photons and neutrinos closing
More informationA New View of the High-Energy γ-ray Sky with the Fermi Telescope
A New View of the High-Energy γ-ray Sky with the Fermi Telescope Aurelien Bouvier KIPAC/SLAC, Stanford University On behalf of the Fermi collaboration SNOWPAC, 2010 The Fermi observatory Launch: June 11
More informationPERSPECTIVES of HIGH ENERGY NEUTRINO ASTRONOMY. Paolo Lipari Vulcano 27 may 2006
PERSPECTIVES of HIGH ENERGY NEUTRINO ASTRONOMY Paolo Lipari Vulcano 27 may 2006 High Energy Neutrino Astrophysics will CERTAINLY become an essential field in a New Multi-Messenger Astrophysics What is
More informationEBL Studies with the Fermi Gamma-ray Space Telescope
EBL Studies with the Fermi Gamma-ray Space Telescope Luis C. Reyes KICP The Extragalactic Background Light (EBL) What is it? Accumulation of all energy releases in the form of electromagnetic radiation.
More informationNeutrino Oscillations and Astroparticle Physics (5) John Carr Centre de Physique des Particules de Marseille (IN2P3/CNRS) Pisa, 10 May 2002
Neutrino Oscillations and Astroparticle Physics (5) John Carr Centre de Physique des Particules de Marseille (IN2P3/CNRS) Pisa, 10 May 2002 n High Energy Astronomy Multi-Messanger Astronomy Cosmic Rays
More informationFermi-LAT Recent Results on Gamma-Ray Bursts
, on behalf of the Fermi LAT and GBM Collaborations Laboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, Montpellier, France piron@in2p3.fr The Fermi Large Area Telescope
More informationHAWC Status & Galactic Science
HAWC Status & Galactic Science HAWC photo from March 2014. Currently 243 of 300 tanks are built, " 192 are filled with water, and 143 are taking data nearly continuously.! Brenda Dingus, LANL US Spokesperson
More informationCosmology and fundamental physics with extragalactic TeV γ-rays?
Cosmology and fundamental physics with extragalactic TeV γ-rays? Matthias Lorentz PhD with Pierre Brun at Irfu/SPP DDays 7-8 July 2016 Introduction : my PhD topic What we can learn from TeV photons propagating
More informationTHE PATH TOWARDS THE CHERENKOV TELESCOPE ARRAY OBSERVATORY. Patrizia Caraveo
THE PATH TOWARDS THE CHERENKOV TELESCOPE ARRAY OBSERVATORY Patrizia Caraveo 5 y integration of the gamma-ray sky Optical +TeV The TeV sky > 40, Active Galactic Nuclei (Blazars) AGN TeV by electrons (strong
More informationGamma-Ray Astronomy. Astro 129: Chapter 1a
Gamma-Ray Bursts Gamma-Ray Astronomy Gamma rays are photons with energies > 100 kev and are produced by sub-atomic particle interactions. They are absorbed by our atmosphere making observations from satellites
More informationStatus of the MAGIC telescopes
SNOWPAC 2010 Status of the MAGIC telescopes Pierre Colin for the MAGIC collaboration Max-Planck-Institut für physik (Munich) Status of the MAGIC telescopes MAGIC-1 MAGIC-2 Outline: Recent results of the
More informationarxiv:astro-ph/ v1 14 Jun 1999
Current Status of VHE Astronomy Gus Sinnis Los Alamos National Laboratory arxiv:astro-ph/9906242v1 14 Jun 1999 Very-high-energy astronomy studies the Universe at energies between 30 GeV and 100 TeV. The
More informationVery high energy gamma-emission of Perseus Cluster
Very high energy gamma-emission of Perseus Cluster V.G. SINITSYNA, V.Y. SINITSYNA P. N. Lebedev Physical Institute, Leninsky prospect 53, Moscow, 119991 Russia VERY-HIGH ENERGY GAMMA-RAY ASTRONOMY of GALACTIC
More informationGLAST and beyond GLAST: TeV Astrophysics
GLAST and beyond GLAST: TeV Astrophysics Outline: Greg Madejski Assistant Director for Scientific Programs, SLAC / Kavli Institute for Astrophysics and Cosmology Recent excitement of GLAST and plans for
More informationGamma-ray Astrophysics with VERITAS: Exploring the violent Universe
Gamma-ray Astrophysics with VERITAS: Exploring the violent Universe K. Ragan McGill University Soup & Science 11-Jan-2008 Soup & Science Jan. '08 1 How do we know about the Universe? Historically, all
More informationRecent highlights from VERITAS
Recent highlights from VERITAS K. Ragan McGill University RICAP 2011, Rome, 26-May-2011 K. Ragan VERITAS RICAP '11 1 Outline Very high-energy (VHE) gamma-ray astrophysics Ground-based observations with
More informationCOVER SHEET FOR PROPOSAL TO THE NATIONAL SCIENCE FOUNDATION
COVER SHEET FOR PROPOSAL TO THE NATIONAL SCIENCE FOUNDATION PROGRAM ANNOUNCEMENT/SOLICITATION NO./CLOSING DATE/if not in response to a program announcement/solicitation enter NSF 04-23 NSF 04-23 FOR CONSIDERATION
More informationGLAST Large Area Telescope:
Gamma-ray Large Area Space Telescope GLAST Large Area Telescope: Project Overview Robert P. Johnson Santa Cruz Institute for Particle Physics Physics Department University of California at Santa Cruz LAT
More informationLecture 20 High-Energy Astronomy. HEA intro X-ray astrophysics a very brief run through. Swift & GRBs 6.4 kev Fe line and the Kerr metric
Lecture 20 High-Energy Astronomy HEA intro X-ray astrophysics a very brief run through. Swift & GRBs 6.4 kev Fe line and the Kerr metric Tut 5 remarks Generally much better. However: Beam area. T inst
More informationThe new Siderius Nuncius: Astronomy without light
The new Siderius Nuncius: Astronomy without light K. Ragan McGill University STARS 09-Feb-2010 1609-2009 four centuries of telescopes McGill STARS Feb. '10 1 Conclusions Optical astronomy has made dramatic
More informationHigh-Energy Spectral Signatures in Gamma-Ray Bursts
To appear in Proc. of Snowbird TeV Gamma-Ray Workshop ed. B. L. Dingus (AIP, New York, 1999) High-Energy Spectral Signatures in Gamma-Ray Bursts Matthew G. Baring arxiv:astro-ph/9911061v1 4 Nov 1999 Laboratory
More informationGamma-Ray Astronomy from the Ground
Gamma-Ray Astronomy from the Ground Dieter Horns University of Hamburg Introduction - summary Many new Results from ICRC 2015 No we haven't discovered dark matter, yet Yes we have discovered sources of
More informationDetection of transient sources with the ANTARES telescope. Manuela Vecchi CPPM
Detection of transient sources with the ANTARES telescope Manuela Vecchi CPPM Multimessenger Astronomy CRs astronomy feasible at energies higher than 1019 ev extragalactic origin UHECRs horizon limited
More informationHAWC Project Summary High energy gamma rays probe the most extreme astrophysical environments including those that produce the highest energy
HAWC Project Summary High energy gamma rays probe the most extreme astrophysical environments including those that produce the highest energy cosmic-ray particles. Most of the discoveries in the TeV energy
More informationThe Galactic diffuse gamma ray emission in the energy range 30 TeV 3 PeV
The Galactic diffuse gamma ray emission in the energy range 30 TeV 3 PeV Mount Rainier by Will Christiansen Silvia Vernetto & Paolo Lipari 35th ICRC 12-20 July 2017 - Busan - South Korea Gamma ray astronomy
More informationFirst Light with the HAWC Gamma-Ray Observatory
, for the HAWC Collaboration Wisconsin IceCube Particle Astrophysics Center (WIPAC) and Department of Physics, University of Wisconsin Madison, Madison, WI 53706, USA E-mail: westerhoff@wisc.edu The High-Altitude
More informationRecent Results from VERITAS
Recent Results from VERITAS Physics Department, McGill University, Montreal, Canada E-mail: hanna@physics.mcgill.ca VERITAS (Very Energetic Radiation Imaging Telescope Array System) is an array of four
More informationFermi Gamma Ray Space Telescope: Launch+509. Roger Blandford KIPAC Stanford (With considerable help from Fermi team members working at Stanford)
Fermi Gamma Ray Space Telescope: Launch+509 Roger Blandford KIPAC Stanford (With considerable help from Fermi team members working at Stanford) 2 2 A Cosmic Reflection on Fermi s First Year Goals To summarize
More informationHigh-Energy Plasma Astrophysics and Next Generation Gamma-Ray Observatory Cherenkov Telescope Array
High-Energy Plasma Astrophysics and Next Generation Gamma-Ray Observatory Cherenkov Telescope Array FAPESP CUNY Week, New York, November 2018 M82 Star Formation- Clouds-SNRturbulence connection Sun & Stars
More informationFuture Gamma-Ray Observations of Pulsars and their Environments
Future Gamma-Ray Observations of Pulsars and their Environments David J. Thompson NASA Goddard Space Flight Center GLAST Large Area Telescope Collaboration djt@egret.gsfc.nasa.gov D. Thompson 363 rd Heraeus
More informationHigh-z Blazar SEDs Clues to Evolution in the Early Universe. Hongjun An Roger Romani on behalf of the Fermi-LAT Collaboration
High-z Blazar SEDs Clues to Evolution in the Early Universe Hongjun An Roger Romani on behalf of the Fermi-LAT Collaboration Outline Blazars Blazar emission and spectral energy distribution (SED) models
More informationGRB observations at very high energies with the MAGIC telescopes
GRB observations at very high energies with the telescopes Markus Garczarczyk - for the collaboration - Markus GRB2012 Garczarczyk Munich GRB2012 May 2012 Munich Major Atmospheric Gamma-ray Imaging Cherenkov
More informationGamma Ray Burst Jets: Predictions and Observations. James E. Rhoads Space Telescope Science Institute
Gamma Ray Burst Jets: Predictions and Observations James E. Rhoads Space Telescope Science Institute Motivation Burst energy requirements and event rates scale linearly with collimation solid angle. With
More informationMajor Option C1 Astrophysics. C1 Astrophysics
C1 Astrophysics Course co-ordinator: Julien Devriendt jeg@astro.ox.ac.uk C1 offers a total of ~40 lectures on five themes covering a broad range of topics in contemporary astrophysics. Each theme takes
More informationarxiv: v1 [astro-ph.he] 28 Nov 2011
Gamma-ray Astronomy: Implications for Fundamental Physics J. Rico Institució Catalana de Recerca i Estudis Avançats (ICREA) & Institut de Física d Altes Energies (IFAE), Bellaterra (Barcelona), 08193,
More informationNeutrino Astronomy. Ph 135 Scott Wilbur
Neutrino Astronomy Ph 135 Scott Wilbur Why do Astronomy with Neutrinos? Stars, active galactic nuclei, etc. are opaque to photons High energy photons are absorbed by the CMB beyond ~100 Mpc 10 20 ev protons,
More informationGamma-Ray Bursts and their Afterglows
Seminar Ib Gamma-Ray Bursts and their Afterglows Mentor: Izr. prof. dr. Andreja Gomboc Author: Katja Bricman Ljubljana, May 2015 Abstract Gamma ray bursts (GRBs) are short flashes of gamma rays, that can
More informationThe Fermi Gamma-ray Space Telescope
Abstract The Fermi Gamma-ray Space Telescope Tova Yoast-Hull May 2011 The primary instrument on the Fermi Gamma-ray Space Telescope is the Large Area Telescope (LAT) which detects gamma-rays in the energy
More informationCTA 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 informationGW from GRBs Gravitational Radiation from Gamma-Ray Bursts
GW from GRBs Gravitational Radiation from Gamma-Ray Bursts Tsvi Piran Racah Inst. of Jerusalem, Israel Dafne Guetta,, Ehud Nakar, Reem Sari Once or twice a day we see a burst of low energy gamma-rays from
More informationRelativistic 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 informationAGIS (Advanced Gamma-ray Imaging System)
AGIS (Advanced Gamma-ray Imaging System) Seth Digel, Stefan Funk and Hiro Tajima SLAC National Accelerator Laboratory Kavli Institute for Particle Astrophysics and Cosmology Outline AGIS project and status
More informationCan we constrain GRB shock parameters using the Gamma Ray Large Area Space Telescope? Eduardo do Couto e Silva SLAC/KIPAC SABER Workshop Mar 15, 2006
Can we constrain GRB shock parameters using the Gamma Ray Large Area Space Telescope? Eduardo do Couto e Silva SLAC/KIPAC SABER Workshop Mar 15, 2006 The Main Questions Is there any connection between
More informationVERITAS Design. Vladimir Vassiliev Whipple Observatory Harvard-Smithsonian CfA
VERITAS Design Vladimir Vassiliev Whipple Observatory Harvard-Smithsonian CfA VERITAS design goals VERITAS is a ground-based observatory for gamma-ray astronomy VERITAS design is derived from scientific
More informationVERY HIGH-ENERGY GAMMA-RAY ASTRONOMY
VERY HIGH-ENERGY GAMMA-RAY ASTRONOMY Rene A. Ong Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, CA 90095, U.S.A. Very high-energy (VHE) γ-ray astronomy is an exciting
More informationIceCube. francis halzen. why would you want to build a a kilometer scale neutrino detector? IceCube: a cubic kilometer detector
IceCube francis halzen why would you want to build a a kilometer scale neutrino detector? IceCube: a cubic kilometer detector the discovery (and confirmation) of cosmic neutrinos from discovery to astronomy
More informationObserving GRBs with. Tania Garrigoux NWU, Potchefstroom
Observing GRBs with Tania Garrigoux NWU, Potchefstroom R.D. Parsons, F. Schüssler, A. Balzer, M. Füssling, C. Hoischen, M. Holler, A. Mitchell, G. Pühlhofer, G. Rowell, S. Wagner, E. Bissaldi, P. O'Brien
More informationGamma-ray Bursts. Chapter 4
Chapter 4 Gamma-ray Bursts At the moment, the most important application of the theory of relativistic shock waves is in explaining the radiation from Gamma-ray Burst sources. I will briefly introduce
More informationNews from Fermi LAT on the observation of GRBs at high energies
News from Fermi LAT on the observation of GRBs at high energies Nicola Omodei* on behalf of the Fermi LAT collaboration *Stanford University The Fermi observatory LAT : Pair conversion telescope Trigger,
More informationCharged-particle and gamma-ray astronomy: deciphering charged messages from the world s most powerful
Charged-particle and gamma-ray astronomy: deciphering charged messages from the world s most powerful Charged-particle astronomy coming of age How it is done The sources The signals What we have learned
More information10 Years. of TeV Extragalactic Science. with VERITAS. Amy Furniss California State University East Bay
55 555 56 565 57 55 555 56 565 57 55 555 56 565 57 572 574 576 578 57 5712 5714 5716 572 574 576 578 57 5712 5714 5716 5712 5713 5714 5715 5716 5712 5713 5714 5715 5716 5712 5713 5714 5715 5716 5712 5713
More informationGamma-ray emission at the base of the Fermi bubbles. Dmitry Malyshev, Laura Herold Erlangen Center for Astroparticle Physics
Gamma-ray emission at the base of the Fermi bubbles Dmitry Malyshev, Laura Herold Erlangen Center for Astroparticle Physics On behalf of the Fermi-LAT collaboration TeVPA 2018, Berlin Fermi bubbles surprise
More informationVERITAS Performance Gernot Maier
VERITAS Performance Gernot Maier Alliance for Astroparticle Physics What scientific impact will VERITAS have in the next 3-5 years? Galactic long-term plan Performance Operations LTP & Performance May
More informationExtragalactic Science with the CTA. A. Zech, LUTH
Extragalactic Science with the CTA A. Zech, LUTH "extragalactic" KSPs Active Galaxies Transients Galaxy Clusters blazars, radio-galaxies, other AGN EBL, IGMF fundamental physics GRBs galactic transients
More informationFirst combined studies on Lorentz Invariance Violation from observations of astrophysical sources
First combined studies on Lorentz Invariance Violation from observations of astrophysical sources Leyre Nogués, Tony T.Y. Lin, Cedric Perennes, Alasdair E. Gent, Julien Bolmont, Markus Gaug, Agnieszka
More informationThe Extreme Universe Rene A. Ong Univ. of Michigan Colloquium University of California, Los Angeles 23 March 2005
The Extreme Universe Rene A. Ong Univ. of Michigan Colloquium University of California, Los Angeles 23 March 2005 OUTLINE Introduction Messengers,, energy scales, & questions. Detecting Very High Energy
More informationA. Chen (INAF-IASF Milano) On behalf of the Fermi collaboration
A. Chen (INAF-IASF Milano) On behalf of the Fermi collaboration Astro-Siesta, May 13 th 2010 Why is it important? Contains information about the evolution of matter in the universe: star formation history,
More information(Future) Experiments for gamma-ray detection
(Future) Experiments for gamma-ray detection K. Ragan McGill University ISSS (GSSI) June 2017 Cosmic Ray Physics in Space K. Ragan ISSS Jun 2017 1 Menu Antipasti Introduction & motivation: why study GeV/TeV
More informationfrom Fermi (Higher Energy Astrophysics)
Particle Acceleration Results from Fermi (Higher Energy Astrophysics) Roger Blandford KIPAC Stanford 3 viii 2011 SLAC SSI 1 Fermi Joint NASA-DOE-Italy- France-Japan- Sweden, Germany mission Launch June
More informationDetection of TeV Gamma-Rays from Extended Sources with Milagro
Detection of TeV Gamma-Rays from Extended Sources with Milagro P. M. Saz Parkinson for the Milagro Collaboration Santa Cruz Institute for Particle Physics, University of California, 1156 High Street, Santa
More informationObservations of Active Galactic Nuclei at very high energies with H.E.S.S.
Observations of Active Galactic Nuclei at very high energies with H.E.S.S. Robert Wagner for the H.E.S.S. Collaboration http://www.mpi-hd.mpg.de/hess/ @hesstelescopes 1 H.E.S.S. High Energy Stereoscopic
More informationCTA / ALMA synergies. C. Boisson. Zech
CTA / ALMA synergies C. Boisson LUTh, Observatoire de Paris Zech thanks to H. Sol & A. Particle acceleration is a wide-spread phenomena in the Universe CTA Key Science Cosmic Rays Origin of cosmic rays
More informationThe Secondary Universe
Secondary photons and neutrinos from distant blazars and the intergalactic magnetic fields UC Berkeley September 11, 2011 The talk will be based on A new interpretation of the gamma-ray observations of
More informationGRB detection at ground level using Water Cerenkov Tanks
GRB detection at ground level using Water Cerenkov Tanks Hugo Rivera May 21, 2009 Outline 1 Gamma Ray Bursts Discovery BATSE Beppo-SAX SWIFT 2 Water Cherenkov Tanks Single Particle Technique WCD calibration
More informationGAMMA-RAY ASTRONOMY: IMAGING ATMOSPHERIC CHERENKOV TECHNIQUE FABIO ZANDANEL - SESIONES CCD
GAMMA-RAY ASTRONOMY: IMAGING ATMOSPHERIC CHERENKOV TECHNIQUE COSMIC RAYS Discovered in 1912 by Victor Hess (Nobel Prize) Messengers from the non-thermal part of the Universe E < 15 ev: galactic E > 17
More informationSIMILARITY AND DIVERSITY OF BLACK HOLE SYSTEMS View from the Very High Energies
SIMILARITY AND DIVERSITY OF BLACK HOLE SYSTEMS View from the Very High Energies 1 Symp. 324, 12-16 September, 2016 Classical view Spinning black hole Accretion disk Collimated jets of particles 2 Looking
More informationMattia Di Mauro. Fermi-LAT point source population studies and origin of the Fermi-LAT gamma-ray background. Trieste, May, 3, 2016
Fermi-LAT point source population studies and origin of the Fermi-LAT gamma-ray background Mattia Di Mauro On behalf of the Fermi- LAT Collaboration 1 Trieste, May, 3, 2016 THE ISOTROPIC GAMMA RAY BACKGROUND
More informationAstrophysics with GLAST: dark matter, black holes and other astronomical exotica
Astrophysics with GLAST: dark matter, black holes and other astronomical exotica Greg Madejski Stanford Linear Accelerator Center and Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) Outline:
More informationRecent Observations of Supernova Remnants
1 Recent Observations of Supernova Remnants with VERITAS Tülün Ergin (U. of Massachusetts Amherst, MA) on behalf of the VERITAS Collaboration (http://veritas.sao.arizona.edu) 2 Contents Supernova Remnants
More informationCosmic 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 informationMILAGRO. 1 The Milagro detector. SABRINA CASANOVA for THE MILAGRO COLLABORATION. Los Alamos National Laboratory, Los Alamos, NM, 87545, US
SURVEYING THE TEV SKY WITH MILAGRO SABRINA CASANOVA for THE MILAGRO COLLABORATION Los Alamos National Laboratory, Los Alamos, NM, 87545, US Abstract A wide field of view, high duty factor TeV gamma-ray
More informationCOSMIC RAYS DAY INTRODUCTION TO COSMIC RAYS WINDWARD COMMUNITY COLLEGE - SEPTEMBER 26, 2015 VERONICA BINDI - UNIVERSITY OH HAWAII
COSMIC RAYS DAY WINDWARD COMMUNITY COLLEGE - SEPTEMBER 26, 2015 VERONICA BINDI - UNIVERSITY OH HAWAII INTRODUCTION TO COSMIC RAYS MAJOR QUESTIONS: Are there forms of matter in the Universe that do not
More informationPoS(NEUTEL2017)079. Blazar origin of some IceCube events
Blazar origin of some IceCube events Sarira Sahu Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, C.U., A. Postal 70-543, 04510 México DF, México. Astrophysical
More informationTHE PATH TOWARDS THE CHERENKOV TELESCOPE ARRAY OBSERVATORY. Patrizia Caraveo
THE PATH TOWARDS THE CHERENKOV TELESCOPE ARRAY OBSERVATORY Patrizia Caraveo 1 st Interaction: X 0 40 g/cm 2 pair = 9/7 X 0 50 g/cm 2 X = X A e h/h0 and X A 10 3 g/cm 2 h pair = h 0 ln(x A / pair ) 20 km
More informationUsing Gamma Ray Bursts to Estimate Luminosity Distances. Shanel Deal
Using Gamma Ray Bursts to Estimate Luminosity Distances Shanel Deal University of Notre Dame Summer Research Experience for Undergraduate 2013 Program Dr. Peter Garnavich August 2, 2013 Abstract Gamma
More informationPulsars with MAGIC. Jezabel R. Garcia on behalf of the MAGIC collaboration
Pulsars with MAGIC Jezabel R. Garcia on behalf of the MAGIC collaboration Introduction to MAGIC - Energy range: ~50 GeV to 50 TeV - Energy resolution: 15% (@1TeV) 23% (@100 GeV) - Angular resolution: 0.06
More informationUltra 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 informationActive Galactic Nuclei in the MeV-GeV band (first results from Fermi)
Active Galactic Nuclei in the MeV-GeV band (first results from Fermi) Gino Tosti University & INFN Perugia On behalf of the Fermi-LAT Collaboration 1 Active Galactic Nuclei (AGN) EGRET showed that AGN
More informationThe Cherenkov Telescope Array project: Present situation at the Paris Observatory
The Cherenkov Telescope Array project: Present situation at the Paris Observatory Hélène Sol LUTH, CNRS, Observatoire de Paris (OP) Meeting «CTA et la Science au TeV» à l Observatoire de Paris, Nov 28-29,
More informationDr. John Kelley Radboud Universiteit, Nijmegen
arly impressive. An ultrahighoton triggers a cascade of particles mulation of the Auger array. The Many Mysteries of Cosmic Rays Dr. John Kelley Radboud Universiteit, Nijmegen Questions What are cosmic
More informationEmission Model And GRB Simulations
Emission Model And GRB Simulations Nicola Omodei (University of Siena, INFN Pisa) 1 ISSS-L Aquila 2001 N. Omodei Spectral Properties? Data collected Range (γ) 10 KeV 10 GeV In the BATSE energy range: (25
More informationSources of GeV Photons and the Fermi Results
Sources of GeV Photons and the Fermi Results 1. GeV instrumentation and the GeV sky with the Fermi Gamma-ray Space Telescope 2. First Fermi Catalog of Gamma Ray Sources and the Fermi Pulsar Catalog 3.
More information