Newtonian instantaneous action at a distance General Relativity information carried by gravitational radiation at the speed of light
|
|
- Antonia Bruce
- 5 years ago
- Views:
Transcription
1 Modern View of Gravitation Newtonian instantaneous action at a distance G µ = 8 µ # General Relativity information carried by gravitational radiation at the speed of light
2 Gravitational Waves GR predicts existence of propagating waves of spacetime curvature traveling at the speed of light Emitted by any (nonspherical) changing distribution of masses An important example Two orbiting objects Gravitational waves carry energy and angular momentum away from orbit causes orbit to decay
3 Electromagnetic Analogy Given a charge distribution, what is the electromagnetic power far away? P(l) = 2cF(l) ω c 2l+2 Q 2 lm, Q lm = where F(l) = (l+1)/{l[(2l+1)!!] 2 }, n!! = 1x3x5x7x The leading terms are P e dipole ~ ω 4 q 2 l 2 r l Y lm * (θ,φ)ρdv multi-pole expansion, P c 3 e quadrupole ~ P m dipole ~ ω 6 q 2 l 4 c 5 Gravitational interactions are mediated by gravitons of spin 2, so there is no dipole emission of gravitational waves. The quadrupole emission is, by analogy, given by P grav ~ ω 6 M 2 l 4 c 5
4 Binary Pulsar If the typical separation between two neutron stars is l, the mass of each of them is M, and they orbit around each other with angular frequency, the luminosity is L = 16Gω 6 M 2 l 4 5c 5 Since the total energy E tot ~ l -1 and the angular frequency ~ l -3/2 (for Keplerian motion), one expects the orbital period P ~ -1 ~ l 3/2 ~ E -3/2. Therefore, 1 P dp dt = d E tot E tot dt = 3 2 L E tot = 24 5 ω 6 l 5 For PSR B , the measured rate of change in P is dp dt = ( ± 0.006) in agreement with dp dt GR =
5 Hulse-Taylor Pulsar 59ms pulsar in eccentric orbit around another neutron star (7.75 hour period) Can determine orbits accurately by timing pulsar Find that orbit is decaying; period is decreasing Fits prediction of GR perfectly GWs are carrying away orbital energy Agrees to <3% Only unambiguous detection of the effects of gravitational radiation PSR B Nobel Prize in Physics
6 Detecting Gravitatonal Waves Numerous experiments currently being built to detect gravitational waves All based on detecting characteristic changes in the separation of a several masses as a GW passes by Two polarizations Measure the strength of a gravitational wave via the strain h= x/x. Most modern attempts based on laser interferometry
7 Expected Signal Strength When gravitational waves of luminosity L and angular frequency from a source that is at a distance R from the detector, the strain h is roughly h 2 ~ GL c 3 ω 2 R h ~ GMl 2 ω 2 2 c 4 R The product Ml 2 2 is the second derivative of the quadrupole moment of the source and is equal to the kinetic energy E kin ~ Mv 2 associated with the source oscillations. In terms of orbital period, more rigoriously, we have h M 2.8M 5/3 0.01s P 2/3 100Mpc R
8 Gravitational Wave Interferometers Precision laser beams in the interferometers will sense small motions of the mirrors that are caused by a gravitational wave. Ly M L=Laser M=Mass Mirror D=Detector S=Beam Splitter L S D Lx M Constructive: L=Lx-Ly=nλ Destructive: L=Lx-Ly=(n+1/2)λ n=0,1,2, Δa(t) a = c + h + (t) + c h (t)
9 From the Ground Laser Interferometer Gravitational-wave Observatory (LIGO)
10 Limitations of interferometors
11 International Endeavor GEO600 (British-German) Hannover, Germany TAMA (Japan) Mitaka LIGO (USA) Hanford, WA and Livingston, LA AIGO (Australia), Wallingup Plain, 85km north of Perth VIRGO (French-Italian) Cascina, Italy
12 From Space An interferometer in space: 5 million km baseline: VERY long!.makes for very low frequency detection band. A NASA-ESA joint project, looking for a successful take off by 2013.
13 Differences Test masses are freely floating within the spacecraft (not suspended with wires as in a ground-based interferometer) LISA doesn't use beam splitters: The two laser beams from the main spacecraft is transmitted to the other two spacecrafts, which act as the end mirrors Because of the large distances between the spacecraft, rather than reflecting the received beams back to the main spacecraft, the secondaries transmit new laser beams (in phase)
14 Detecting Gravitational Waves Gravitational Wave Astrophysical Source Detectors in space LISA Terrestrial detectors Virgo, LIGO, TAMA, GEO AIGO
15 Sensitivities
16 What to See? LIGO - detects high frequency GWs Final stages of merging neutron star binaries Final stages of stellar mass BHs merging with other stellar mass BHs or neutron stars (Possibly) core collapse supernovae, GRBs, LISA - detects lower frequency GWs Merging supermassive black holes Infall of a stellar-mass BH or neutron star into a supermassive black hole Galactic Binary star system (esp. binary white dwarfs)
17 Types of Signals Stochastic Background Compact binary inpiral - chirps Supernova/GRB - Bursts Pulsars - Periodic
18 Gravity Waves from Inflation Like all quantum fields, the gravitational field (the structure of spacetime) undergoes quantum fluctuations due to the Uncertainty Principle. For the most part, these are only appreciable on submicroscopic lengthscales (the gravitational field of the Earth does not fluctuate wildly, fortunately for us). Recall, that we defined the Planck length (~10-43 cm) as the scale over which these spacetime fluctuations are large. During inflation, however, these gravitational fluctuations are stretched from submicroscopic to astronomical scales (just as the fluctuations of the inflaton field itself). These long wavelength gravity fluctuations are gravitational waves.
19 Gravity Waves from Inflation Gravity waves from inflation are not expected to be seen by the coming generation of Laser interferometer gravity wave detectors, because they probe relatively short wavelength waves. Gravity waves from inflation do, however, produce a distinctive signature in the Cosmic Microwave Background anisotropy. Searching for this subtle effect (polarization) is another experimental challenge for the decade ahead.
20 Upper Limits
21 Inflationary GW s Summary of the times probed by the various gravitational wave experiments. Assuming initial primordial perturbation in matter density Wavelengths larger than horizon are frozen no communication between crest and trough Later, the mode enters horizon
22 BH-BH Merger The merger of two black holes is a violent process that emits very strong gravitational waves. Three stages Inspiral of the two black holes Merging of their event horizons Ringdown to a final relaxed black hole
23 Expected Waveform
Gravity. Newtonian gravity: F = G M1 M2/r 2
Gravity Einstein s General theory of relativity : Gravity is a manifestation of curvature of 4- dimensional (3 space + 1 time) space-time produced by matter (metric equation? g μν = η μν ) If the curvature
More informationGravitational Wave Astronomy the sound of spacetime. Marc Favata Kavli Institute for Theoretical Physics
Gravitational Wave Astronomy the sound of spacetime Marc Favata Kavli Institute for Theoretical Physics What are gravitational waves? Oscillations in the gravitational field ripples in the curvature of
More informationGRAVITATIONAL WAVE SOURCES AND RATES FOR LISA
GRAVITATIONAL WAVE SOURCES AND RATES FOR LISA W. Z. Korth, PHZ6607, Fall 2008 Outline Introduction What is LISA? Gravitational waves Characteristics Detection (LISA design) Sources Stochastic Monochromatic
More informationDiscovery of Gravita/onal Waves
Discovery of Gravita/onal Waves Avto Kharchilava QuarkNet Workshop, August 2016 https://www.ligo.caltech.edu/news/ligo20160211 Gravity Einstein s General theory of relativity: Gravity is a manifestation
More informationBinary Black Holes, Gravitational Waves, & Numerical Relativity Part 1
1 Binary Black Holes, Gravitational Waves, & Numerical Relativity Part 1 Joan Centrella Chief, Gravitational Astrophysics Laboratory NASA/GSFC Summer School on Nuclear and Particle Astrophysics: Connecting
More informationWhat can LIGO detect? Abstract
What can LIGO detect? Adam Getchell Physics Department, University of California, Davis, 95616 Abstract This briey reviews the literature on gravitational wave astronomy, including theoretical basis, experimental
More informationSynergy with Gravitational Waves
Synergy with Gravitational Waves Alexandre Le Tiec and Jérôme Novak Laboratoire Univers et Théories Observatoire de Paris / CNRS LIGO, Virgo, ( elisa, ET,... ( What is a gravitational wave? A gravitational
More informationGravitational Waves and LIGO
Gravitational Waves and LIGO Ray Frey, University of Oregon 1. GW Physics and Astrophysics 2. How to detect GWs The experimental challenge 3. Prospects June 16, 2004 R. Frey QNet 1 General Relativity Some
More informationLIGO Status and Advanced LIGO Plans. Barry C Barish OSTP 1-Dec-04
LIGO Status and Advanced LIGO Plans Barry C Barish OSTP 1-Dec-04 Science Goals Physics» Direct verification of the most relativistic prediction of general relativity» Detailed tests of properties of gravitational
More informationGravitational Waves & Intermediate Mass Black Holes. Lee Samuel Finn Center for Gravitational Wave Physics
Gravitational Waves & Intermediate Mass Black Holes Lee Samuel Finn Center for Gravitational Wave Physics Outline What are gravitational waves? How are they produced? How are they detected? Gravitational
More informationGravitational Waves Theory - Sources - Detection
Gravitational Waves Theory - Sources - Detection Kostas Glampedakis Contents Part I: Theory of gravitational waves. Properties. Wave generation/the quadrupole formula. Basic estimates. Part II: Gravitational
More informationSearching for gravitational waves
Searching for gravitational waves Matteo Barsuglia (barsuglia@apc.univ-paris7.fr) CNRS - Laboratoire Astroparticule et Cosmologie 1 The gravitational waves (GW) Perturbations of the space-time metrics
More informationDevelopment of ground based laser interferometers for the detection of gravitational waves
Development of ground based laser interferometers for the detection of gravitational waves Rahul Kumar ICRR, The University of Tokyo, 7 th March 2014 1 Outline 1. Gravitational waves, nature & their sources
More informationGravity s Standard Sirens. B.S. Sathyaprakash School of Physics and Astronomy
Gravity s Standard Sirens B.S. Sathyaprakash School of Physics and Astronomy What this talk is about Introduction to Gravitational Waves What are gravitational waves Gravitational wave detectors: Current
More informationCover Page. The handle holds various files of this Leiden University dissertation.
Cover Page The handle http://hdl.handle.net/1887/42442 holds various files of this Leiden University dissertation. Author: Saravanan, S. Title: Spin dynamics in general relativity Issue Date: 2016-07-07
More informationAn Introduction to Gravitational Waves
An Introduction to Gravitational Waves Michael Nickerson Abstract This paper presents a brief overview of gravitational waves. Their propagation and generation are presented in more detail, with references
More informationOn the minimum flexing of arms of LISA (Laser Interferometer Space Antenna)
On the minimum flexing of arms of LISA (Laser Interferometer Space Antenna) Dr. SUCHETA KOSHTI IISER, Pune, India. ICSW-7, IPM, Tehran,Iran Jun4, 27 Motivation Einstein s General theory of relativity (GR)
More informationGravitational Wave Astronomy
Gravitational Wave Astronomy Giles Hammond SUPA, University of Glasgow, UK on behalf of the LIGO Scientific Collaboration and the Virgo Collaboration 14 th Lomonosov conference on Elementary Particle Physics
More informationGravity Waves and Black Holes
Gravity Waves and Black Holes Mike Whybray Orwell Astronomical Society (Ipswich) 14 th March 2016 Overview Introduction to Special and General Relativity The nature of Black Holes What to expect when Black
More informationThe Quest to Detect Gravitational Waves
The Quest to Detect Gravitational Waves Peter Shawhan California Institute of Technology / LIGO Laboratory What Physicists Do lecture Sonoma State University March 8, 2004 LIGO-G040055-00-E Outline Different
More informationPresent and Future. Nergis Mavalvala October 09, 2002
Gravitational-wave Detection with Interferometers Present and Future Nergis Mavalvala October 09, 2002 1 Interferometric Detectors Worldwide LIGO TAMA LISA LIGO VIRGO GEO 2 Global network of detectors
More informationDynamics of star clusters containing stellar mass black holes: 1. Introduction to Gravitational Waves
Dynamics of star clusters containing stellar mass black holes: 1. Introduction to Gravitational Waves July 25, 2017 Bonn Seoul National University Outline What are the gravitational waves? Generation of
More informationLISA: Probing the Universe with Gravitational Waves. Tom Prince Caltech/JPL. Laser Interferometer Space Antenna LISA
: Probing the Universe with Gravitational Waves Tom Caltech/JPL Laser Interferometer Space Antenna http://lisa.nasa.gov Gravitational Wave Astronomy is Being Born LIGO, VIRGO, GEO, TAMA 4000m, 3000m, 2000m,
More informationGravitational waves. Markus Pössel. What they are, how to detect them, and what they re good for. MPIA, March 11, 2016.
What they are, how to detect them, and what they re good for AstroTechTalk MPIA, March 11, 2016 General relativity Interferometric detectors First direct detection What s next? Einstein s general theory
More informationEINSTEIN TELESCOPE rd. 3 generation GW detector
EINSTEIN TELESCOPE rd 3 generation GW detector http://www.et-gw.eu/ Dorota Gondek-Rosińska University of Zielona Góra w imieniu polskiego ET konsorcjum (UW, UZG, UwB, PW, CAMK, IMPAN ) Gravitational wave
More informationGravitational Wave Astronomy. Lee Lindblom California Institute of Technology
Gravitational Wave Astronomy Lee Lindblom California Institute of Technology Los Angeles Valley College Astronomy Group 20 May 2007 What is Einstein s picture of gravity? What are gravitational waves?
More informationSources of Gravitational Waves
1 Sources of Gravitational Waves Joan Centrella Laboratory for High Energy Astrophysics NASA/GSFC Gravitational Interaction of Compact Objects KITP May 12-14, 2003 A Different Type of Astronomical Messenger
More informationAJW, CERN, Aug 11, 2006 NASA / GSFC
NASA / GSFC Gravitational Waves and LIGO Gravitational waves Detection of GW s The LIGO project and its sister projects Astrophysical sources Conclusions "Colliding Black Holes" National Center for Supercomputing
More informationExploring the Warped Side of the Universe
Exploring the Warped Side of the Universe Nergis Mavalvala Department of Physics Massachusetts Institute of Technology MIT Alumni Club, Washington DC October 2014 Einstein s legacies A story about our
More informationGravity -- Studying the Fabric of the Universe
Gravity -- Studying the Fabric of the Universe Barry C. Barish Caltech "Colliding Black Holes" Credit: National Center for Supercomputing Applications (NCSA) AAAS Annual Meeting Denver, Colorado 17-Feb-03
More informationStatus of LIGO. David Shoemaker LISA Symposium 13 July 2004 LIGO-G M
Status of LIGO David Shoemaker LISA Symposium 13 July 2004 Ground-based interferometric gravitational-wave detectors Search for GWs above lower frequency limit imposed by gravity gradients» Might go as
More information5/7/2018. Black Holes. Type II.
Black Holes Type II https://www.youtube.com/watch?v=ctnkk7tnkq8 1 Scientific American 22, 82 (2013) Scientific American 22, 82 (2013) 2 First detection of gravitational waves Recommended reading Physics
More informationGravitational wave cosmology Lecture 2. Daniel Holz The University of Chicago
Gravitational wave cosmology Lecture 2 Daniel Holz The University of Chicago Thunder and lightning Thus far we ve only seen the Universe (and 95% of it is dark: dark matter and dark energy). In the the
More informationGravitational Waves Listening to the Universe. Teviet Creighton LIGO Laboratory California Institute of Technology
Gravitational Waves Listening to the Universe Teviet Creighton LIGO Laboratory California Institute of Technology Summary So far, nearly all our knowledge of the Universe comes from electromagnetic radiation.
More informationThe Laser Interferometer Gravitational-Wave Observatory In Operation
The Laser Interferometer Gravitational-Wave Observatory In Operation "Colliding Black Holes" Credit: National Center for Supercomputing Applications (NCSA) Reported on behalf of LIGO colleagues by Fred
More informationGravitational Wave Detection from the Ground Up
Gravitational Wave Detection from the Ground Up Peter Shawhan (University of Maryland) for the LIGO Scientific Collaboration LIGO-G080393-00-Z From Simple Beginnings Joe Weber circa 1969 AIP Emilio Segre
More informationOverview of Gravitational Wave Physics [PHYS879]
Overview of Gravitational Wave Physics [PHYS879] Alessandra Buonanno Maryland Center for Fundamental Physics Joint Space-Science Institute Department of Physics University of Maryland Content: What are
More informationGravitational Waves: From Einstein to a New Science
Gravitational Waves: From Einstein to a New Science LIGO-G1602199 Barry C Barish Caltech - LIGO 1.3 Billion Years Ago 2 Black Holes Regions of space created by super dense matter from where nothing can
More informationCurrent Experimental Limits on Gravitational Waves. Nelson Christensen Artemis, Observatoire de la Côte d Azur, Nice
Current Experimental Limits on Gravitational Waves Nelson Christensen Artemis, Observatoire de la Côte d Azur, Nice September 28, 2017. DESY Theory Workshop General Relativity 1915: Einstein s Theory of
More informationConfronting Theory with Gravitational Wave Observations
Gravitation: A Decennial Perspective Confronting Theory with Gravitational Wave Observations B F Schutz Max Planck Institute for Gravitational Physics () Golm/Potsdam Germany The AEI congratulates The
More informationLIGO Observational Results
LIGO Observational Results Patrick Brady University of Wisconsin Milwaukee on behalf of LIGO Scientific Collaboration LIGO Science Goals Direct verification of two dramatic predictions of Einstein s general
More information+56'0+0)614#8+6#6+10#.#8'5U +056'+0510).+0'5(41/6*'0+8'45' Barry C. Barish
+56'0+0)614#8+6#6+10#.#8'5U +056'+0510).+0'5(41/6*'0+8'45' Barry C. Barish .$'46 +056'+0 +45##%'9610 Perhaps the most important scientist of all time! Invented the scientific method in Principia Greatest
More informationFrom space-time to gravitation waves. Bubu 2008 Oct. 24
From space-time to gravitation waves Bubu 008 Oct. 4 Do you know what the hardest thing in nature is? and that s not diamond. Space-time! Because it s almost impossible for you to change its structure.
More informationFigure 1: An example of the stretching and contracting of space-time caused by a gravitational wave.
SEARCHING FOR GRAVITATIONAL WAVES Nelson Christensen, for the LIGO Scientific Collaboration Physics and Astronomy, Carleton College, Northfield, Minnesota 55057 USA Abstract The search for gravitational
More informationStatus and Prospects for LIGO
Status and Prospects for LIGO Crab Pulsar St Thomas, Virgin Islands Barry C. Barish Caltech 17-March-06 LIGO Livingston, Louisiana 4 km 17-March-06 Confronting Gravity - St Thomas 2 LIGO Hanford Washington
More informationGravitational waves. What are gravitational waves (GWs)? N. K. Johnson-McDaniel. Wintersemester 2013
Gravitational waves N. K. Johnson-McDaniel TPI, FSU Jena Wintersemester 2013 What are gravitational waves (GWs)? Intuitively, ripples in spacetime that carry energy and (angular) momentum away from an
More informationThe Present Gravitational Wave Detection Effort
The Present Gravitational Wave Detection Effort Keith Riles University of Michigan LIGO Scientific Collaboration International Conference on Topics in Astroparticle and Underground Physics Rome July 1,
More informationCompact Binaries as Gravitational-Wave Sources
Compact Binaries as Gravitational-Wave Sources Chunglee Kim Lund Observatory Extreme Astrophysics for All 10 February, 2009 Outline Introduction Double-neutron-star systems = NS-NS binaries Neutron star
More informationQuantum Physics and Beyond
Physics 120 John Harris 1 Physics 120 Announcements / Issues Quiz next week at beginning of class Covers everything up through last week s class (see next 2 slides), through Reading assignments including
More informationLIGO Detection of Gravitational Waves. Dr. Stephen Ng
LIGO Detection of Gravitational Waves Dr. Stephen Ng Gravitational Waves Predicted by Einstein s general relativity in 1916 Indirect confirmation with binary pulsar PSR B1913+16 (1993 Nobel prize in physics)
More informationLIGO: On the Threshold of Gravitational-wave Astronomy
LIGO: On the Threshold of Gravitational-wave Astronomy Stan Whitcomb LIGO/Caltech IIT, Kanpur 18 December 2011 Outline of Talk Quick Review of GW Physics and Astrophysics LIGO Overview» Initial Detectors»
More informationThe direct detection of gravitational waves: The first discovery, and what the future might bring
The direct detection of gravitational waves: The first discovery, and what the future might bring Chris Van Den Broeck Nikhef - National Institute for Subatomic Physics Amsterdam, The Netherlands Physics
More informationGravitational Wave Detectors: Back to the Future
Gravitational Wave Detectors: Back to the Future Raffaele Flaminio National Astronomical Observatory of Japan University of Tokyo, March 12th, 2017 1 Summary Short introduction to gravitational waves (GW)
More informationASTR 200 : Lecture 31. More Gravity: Tides, GR, and Gravitational Waves
ASTR 200 : Lecture 31 More Gravity: Tides, GR, and Gravitational Waves 1 Topic One : Tides Differential tidal forces on the Earth. 2 How do tides work???? Think about 3 billiard balls sitting in space
More informationSearching for gravitational waves. with LIGO detectors
Werner Berger, ZIB, AEI, CCT Searching for gravitational waves LIGO Hanford with LIGO detectors Gabriela González Louisiana State University On behalf of the LIGO Scientific Collaboration KITP Colloquium,
More informationSearching for gravitational waves from neutron stars
Searching for gravitational waves from neutron stars Ian Jones D.I.Jones@soton.ac.uk General Relativity Group, Southampton University Ian Jones Searching for gravitational waves from neutron stars 1/23
More informationGravitational Waves and LIGO
Gravitational Waves and LIGO Gravitational waves Detection of GW s The LIGO project and its sister projects Astrophysical sources LIGO search for GWs Conclusions "Colliding Black Holes" National Center
More informationGravitational waves from the early Universe
Gravitational waves from the early Universe Part 1 Sachiko Kuroyanagi (Nagoya University) 26 Aug 2017 Summer Institute 2017 What is a Gravitational Wave? What is a Gravitational Wave? 11 Feb 2016 We have
More informationGravitational wave detection. K.A. Strain
Gravitational wave detection K.A. Strain Contents gravitational waves: introduction sources of waves, amplitudes and rates basics of GW detection current projects future plans and hopes Gravitational Waves:
More informationProbing the Universe for Gravitational Waves
Probing the Universe for Gravitational Waves Barry C. Barish Caltech Crab Pulsar Georgia Tech 26-April-06 General Relativity the essential idea G μν = 8πΤ μν Gravity is not a force, but a property of space
More informationGravitational Waves. Kostas Kokkotas. Department of Physics Aristotle University of Thessaloniki
Gravitational Waves Kostas Kokkotas Department of Physics Aristotle University of Thessaloniki ALLEGRO AURIGA EXPLORER NAUTILUS NIOBE 8/6-9/7/4 ISAPP-4 Grav. Waves: an international dream GEO6 (British-German)
More informationGravitational waves and fundamental physics
Gravitational waves and fundamental physics Michele Maggiore Département de physique théorique Avignon, April 2008 Experimental situation Timeframe: present (LIGO, Virgo) ~2011-2014 advanced LIGO/Virgo
More informationLaser Interferometer Space Antenna Listening to the Universe with Gravitational Waves
Laser Interferometer Space Antenna Listening to the Universe with Gravitational Waves Scott E Pollack for the LISA team UW General Relativity Labs AAPT Workshop GSFC - JPL 5 January 2007 Outline LISA Overview
More informationLaser Interferometer Gravitationalwave Observatory LIGO Industrial Physics Forum. Barry Barish 7 November 2000 LIGO-G9900XX-00-M
Laser Interferometer Gravitationalwave Observatory LIGO 2000 Industrial Physics Forum Barry Barish 7 November 2000 Sir Isaac Newton Perhaps the most important scientist of all time! Invented the scientific
More informationGravitational Waves. Kostas Kokkotas. Eberhard Karls University of Tübingen & Aristotle University of Thessaloniki. June 17, 07 Zakopane 1
Gravitational Waves Kostas Kokkotas Eberhard Karls University of Tübingen & Aristotle University of Thessaloniki June 17, 07 Zakopane 1 About the lectures Theory of Gravitational Waves Gravitational Wave
More informationThe structure of spacetime. Eli Hawkins Walter D. van Suijlekom
The structure of spacetime Eli Hawkins Walter D. van Suijlekom Einstein's happiest thought After Einstein formulated Special Relativity, there were two problems: Relativity of accelerated motion The monstrous
More informationSavvas Nesseris. IFT/UAM-CSIC, Madrid, Spain
Savvas Nesseris IFT/UAM-CSIC, Madrid, Spain What are the GWs (history, description) Formalism in GR (linearization, gauges, emission) Detection techniques (interferometry, LIGO) Recent observations (BH-BH,
More informationGravitational Waves: Sources and Detection
Anthony Alberti 1 Gravitational Waves: Sources and Detection Artist s rendition of LISA Anthony Alberti 2 Einstein s theory of general relativity describes the force of gravity as the physical warping
More informationGravitational-Wave Astronomy - a Long Time Coming Livia Conti, for the Virgo Collaboration Fred Raab, for the LIGO Scientific Collaboration
Gravitational-Wave Astronomy - a Long Time Coming Livia Conti, for the Virgo Collaboration Fred Raab, for the LIGO Scientific Collaboration LIGO Hanford, WA LIGO Livingston, LA Virgo (Cascina, Italy) What
More informationLIGO: The Laser Interferometer Gravitational Wave Observatory
LIGO: The Laser Interferometer Gravitational Wave Observatory Credit: Werner Benger/ZIB/AEI/CCT-LSU Michael Landry LIGO Hanford Observatory/Caltech for the LIGO Scientific Collaboration (LSC) http://www.ligo.org
More informationGravitational Waves. Masaru Shibata U. Tokyo
Gravitational Waves Masaru Shibata U. Tokyo 1. Gravitational wave theory briefly 2. Sources of gravitational waves 2A: High frequency (f > 10 Hz) 2B: Low frequency (f < 10 Hz) (talk 2B only in the case
More informationGravitational Waves Summary of the presentation for the Proseminar Theoretical Physics
Gravitational Waves Summary of the presentation for the Proseminar Theoretical Physics Nehir Schmid 06.05.2018 Contents 1 Introduction 1 2 Theoretical Background 1 2.1 Linearized Theory........................................
More informationAdvanced LIGO, LIGO-Australia and the International Network
Advanced LIGO, LIGO-Australia and the International Network Stan Whitcomb LIGO/Caltech IndIGO - ACIGA meeting on LIGO-Australia 8 February 2011 Gravitational Waves Einstein in 1916 and 1918 recognized
More informationThe LIGO Experiment Present and Future
The LIGO Experiment Present and Future Keith Riles University of Michigan For the LIGO Scientific Collaboration APS Meeting Denver May 1 4, 2004 LIGO-G040239-00-Z What are Gravitational Waves? Gravitational
More informationMapping Inspiral Sensitivity of Gravitational Wave Detectors
Mapping Inspiral Sensitivity of Gravitational Wave Detectors Anthony D. Castiglia Mentor: John T. Whelan Rochester Institute of Technology 12 August, 2011 Acknowledgments Mentor: John T. Whelan NSF Grant
More informationAnalytic methods in the age of numerical relativity
Analytic methods in the age of numerical relativity vs. Marc Favata Kavli Institute for Theoretical Physics University of California, Santa Barbara Motivation: Modeling the emission of gravitational waves
More informationSearching for gravitational waves
Searching for gravitational waves What are gravitational waves? Let us imagine that we are observing a star that rotates around a supermassive black hole (whose mass is millions of times that of the Sun).
More informationAstrophysics & Gravitational Physics with the LISA Mission
Astrophysics & Gravitational Physics with the LISA Mission Peter L. Bender JILA, University of Colorado, and NIST Workshop on Robotic Science from the Moon Boulder, CO 5-6 October, 2010 LISA Overview The
More informationGRAVITATIONAL COLLAPSE
GRAVITATIONAL COLLAPSE Landau and Chandrasekhar first realised the importance of General Relativity for Stars (1930). If we increase their mass and/or density, the effects of gravitation become increasingly
More informationGravitational Waves from Eccentric Binary Systems and Globular Clusters
Gravitational Waves from Eccentric Binary Systems and Globular Clusters Laura Rhian Pickard Mullard Space Science Laboratory Department of Space and Climate Physics University College London A thesis submitted
More informationAnalytic methods in the age of numerical relativity
Analytic methods in the age of numerical relativity vs. Marc Favata Kavli Institute for Theoretical Physics University of California, Santa Barbara Motivation: Modeling the emission of gravitational waves
More informationProbing the Universe for Gravitational Waves
Probing the Universe for Gravitational Waves Barry C. Barish Caltech Crab Pulsar University of Illinois 16-Feb-06 General Relativity the essential idea G μν = 8πΤ μν Gravity is not a force, but a property
More informationGravitational Waves and Their Sources, Including Compact Binary Coalescences
3 Chapter 2 Gravitational Waves and Their Sources, Including Compact Binary Coalescences In this chapter we give a brief introduction to General Relativity, focusing on GW emission. We then focus our attention
More informationASTR 200 : Lecture 30. More Gravity: Tides, GR, and Gravitational Waves
ASTR 200 : Lecture 30 More Gravity: Tides, GR, and Gravitational Waves 1 Topic One : Tides Differential tidal forces on the Earth. 2 How do tides work???? Think about 3 billiard balls sitting in space
More informationChirplets pour la détection des ondes gravitationnelles
Chirplets pour la détection des ondes gravitationnelles Éric Chassande-Mottin AstroParticule et Cosmologie, Paris et collaborateurs : Satya Mohapatra, Miriam Miele, Laura Cadonati, Zacharya Nemtzow Outline
More informationPast and Future in the Quest for Gravitational Wave Transients
Crab-Chandra NASA/ESA Credit: NASA/COBE Past and Future in the Quest for Gravitational Wave Transients Laura Cadonati - University of Massachusetts, Amherst LIGO Scientific Collaboration and Virgo Collaboration
More informationHow to measure a distance of one thousandth of the proton diameter? The detection of gravitational waves
How to measure a distance of one thousandth of the proton diameter? The detection of gravitational waves M. Tacca Laboratoire AstroParticule et Cosmologie (APC) - Paris Journée GPhys - 2016 July 6th General
More informationSeminar. Space-time ripples
Seminar Space-time ripples Author: Taj Jankovič Adviser: prof. dr. Andreja Gomboc Ljubljana, May 2017 Abstract Recent first direct detection of gravitational waves opened a new window on the universe.
More informationLearning Objectives: Chapter 13, Part 1: Lower Main Sequence Stars. AST 2010: Chapter 13. AST 2010 Descriptive Astronomy
Chapter 13, Part 1: Lower Main Sequence Stars Define red dwarf, and describe the internal dynamics and later evolution of these low-mass stars. Appreciate the time scale of late-stage stellar evolution
More informationThe Advanced LIGO detectors at the beginning of the new gravitational wave era
The Advanced LIGO detectors at the beginning of the new gravitational wave era Lisa Barsotti MIT Kavli Institute LIGO Laboratory on behalf of the LIGO Scientific Collaboration LIGO Document G1600324 LIGO
More informationParity violating gravitational waves
Parity violating gravitational waves Ben Owen Stephon Alexander ( Haverford) Sam Finn Richard O Shaughnessy Nico Yunes ( Princeton) Tests of Gravity @ Case Western May 21, 2009 Outline Chern-Simons gravity
More informationProbing the Universe for Gravitational Waves
Probing the Universe for Gravitational Waves "Colliding Black Holes" Credit: National Center for Supercomputing Applications (NCSA) Barry C. Barish Caltech Argonne National Laboratory 16-Jan-04 LIGO-G030523-00-M
More informationGW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral Lazzaro Claudia for the LIGO Scientific Collaboration and the Virgo Collaboration 25 October 2017 GW170817 PhysRevLett.119.161101
More informationGRAVITATIONAL WAVES MOHAMMAD ISHTIAQ
GRAVITATIONAL WAVES MOHAMMAD ISHTIAQ Introduction It all started with Einstein s theory of general relativity What is Einstein s theory of general relativity? Theory which predicted that objects cause
More informationBinary Black Holes. Deirdre Shoemaker Center for Relativistic Astrophysics School of Physics Georgia Tech
Binary Black Holes Deirdre Shoemaker Center for Relativistic Astrophysics School of Physics Georgia Tech NR confirmed BBH GW detections LIGO-P150914-v12 Abbott et al. 2016a, PRL 116, 061102 an orbital
More informationGravitational Wave. Kehan Chen Math 190S. Duke Summer College
Gravitational Wave Kehan Chen 2017.7.29 Math 190S Duke Summer College 1.Introduction Since Albert Einstein released his masterpiece theory of general relativity, there has been prediction of the existence
More informationLaser Interferometer Gravitational-Wave Observatory (LIGO)! A Brief Overview!
Laser Interferometer Gravitational-Wave Observatory (LIGO) A Brief Overview Sharon Brunett California Institute of Technology Pacific Research Platform Workshop October 15, 2015 Credit: AEI, CCT, LSU LIGO
More informationThe LIGO Project: a Status Report
The LIGO Project: a Status Report LIGO Hanford Observatory LIGO Livingston Observatory Laura Cadonati LIGO Laboratory, MIT for the LIGO Scientific Collaboration Conference on Gravitational Wave Sources
More informationAstrophysical Stochastic Gravitational Waves. Jonah Kanner PHYS 798G March 27, 2007
Astrophysical Stochastic Gravitational Waves Jonah Kanner PHYS 798G March 27, 2007 Introduction Gravitational Waves come from space Require acceleration of dense mass (Think black holes and neutron stars!)
More informationGravitational wave detection with Virgo and LIGO experiment - Case of the long bursts
Gravitational wave detection with Virgo and LIGO experiment - Case of the long bursts Samuel Franco Supervisor: Patrice Hello Laboratoire de l Accélérateur Linéaire (Orsay) 06/12/2013 Samuel Franco (LAL)
More information