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A 'bang' in LIGO and Virgo detectors signals most massive gravitational wave source yet（图）
bang LIGO Virgo detectors signals massive gravitational source yet
2020/9/4
For all its vast emptiness, the universe is humming with activity in the form of gravitational waves. Produced by extreme astrophysical phenomena, these reverberations ripple forth and shake the fabri...
Observing 'black hole symphony' using gravitational wave astronomy（图）
Observing black hole symphony gravitational wave astronomy
2019/12/2
Shrouded in mystery since their discovery, black holes continue to be mind-boggling enigmas in our universe.Limitations in observation technologies have kept scientists from grasping a more complete p...
Scientists to discuss new developments in gravitational-wave astronomy（图）
Scientists new developments gravitational-wave astronomy
2017/10/25
Journalists are invited to join the National Science Foundation (NSF) as it brings together scientists from the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo collaborations, as ...
New Gravitational Wave Hits Earth--For The First Time,3 Detectors Zoom In On Its Location（图）
New Gravitational Wave Earth The First Time 3 Detectors Zoom On Its Location
2017/10/24
For the first time, three detectors have tracked the gravitational waves emitted by a merger of two black holes -- a critical new capability that allows scientists to more closely locate a gravitation...
RIT's black hole computer simulations help ID third gravitational wave LSC announces newest findings
RIT black hole computer simulations ID third gravitational wave LSC announces
2017/7/21
Rochester Institute of Technology researchers continue to make significant contributions to gravitational wave astronomy, with the third detection of gravitational waves and a new black hole 49 times ...
WVU astrophysicists part of gravitational wave search that provides insights into galaxy evolution and mergers
WVU astrophysicists gravitational wave search galaxy evolution and mergers
2016/4/13
On the heels of their participation in the historic research that resulted in the detection of gravitational waves, West Virginia University astrophysicists continue to plow new ground ...
Electromagnetic follow-up of gravitational wave transient signal candidates
Electromagnetic follow-up gravitational wave transient signal candidates
2012/2/24
Pioneering efforts aiming at the development of multi-messenger gravitational wave and electromagnetic astronomy have been made. An electromagnetic observation follow-up program of candidate gravitati...
Prospects for early localization of gravitational-wave signals from compact binary coalescences with advanced detectors
Prospects early localization gravitational-wave signals compact binary coalescences advanced detectors
2012/2/21
A leading candidate source of detectable gravitational waves is the inspiral and merger of pairs of stellar-mass compact objects. The advanced LIGO and advanced Virgo detectors will allow scientists t...
Graviton mass bounds from space-based gravitational-wave observations of massive black hole populations
Graviton mass bounds space-based gravitational-wave observations massive black hole populations
2011/10/17
Space-based gravitational-wave detectors, such as LISA or a similar ESA-led mission, will offer unique opportunities to test general relativity. We study the bounds that space-based detectors could pl...
Addressing the spin question in gravitational-wave searches: Waveform templates for inspiralling compact binaries with nonprecessing spins
Addressing spin question gravitational-wave searches Waveform templates inspiralling
2011/10/18
This paper presents a post-Newtonian (PN) template family of gravitational waveforms from inspiralling compact binaries with non-precessing spins, where the spin effects are described by a single "red...
Measuring a cosmological distance-redshift relationship using only gravitational wave observations of binary neutron star coalescences
neutron stars gravitational waves cosmology
2011/10/14
Detection of gravitational waves from the inspiral phase of binary neutron star coalescence will allow us to measure the effects of the tidal coupling in such systems. These effects will be measurable...
The impact of a stochastic gravitational-wave background on pulsar timing parameters
impact stochastic gravitational-wave background timing parameters
2011/10/12
Gravitational waves are predicted by Einstein's theory of general relativity as well as other theories of gravity. The rotational stability of the fastest pulsars means that timing of an array of thes...
Numerical simulations of black-hole binaries and gravitational wave emission
Numerical Relativity Black Holes Gravitational Wave Physics Astrophysics High-Energy Physics
2011/10/17
We review recent progress in numerical relativity simulations of black-hole (BH) spacetimes. Following a brief summary of the methods employed in the modeling, we summarize the key results in three ma...
Comparison of LISA and Atom Interferometry for Gravitational Wave Astronomy in Space
LISA and Atom Interferometry Gravitational Wave Astronomy Space
2011/9/14
One of the atom interferometer gravitational wave missions proposed by Dimopoulos et al.1 in 2008 was called AGIS-Sat. 2. It had a suggested gravitational wave sensitivity set by the atom state detect...
The Massive Pulsar PSR J1614-2230: Linking Quantum Chromodynamics, Gamma-ray Bursts, and Gravitational Wave Astronomy
The Massive Pulsar PSR J1614-2230 Linking Quantum Chromodynamics
2011/1/11
The recent measurement of the Shapiro delay in the radio pulsar PSR J1614-2230 yielded a mass of 1.97 +/- 0.04 M_sun, making it the most massive pulsar known to date. Its mass is high enough that, eve...