Reanalysis of LIGO black-hole coalescences with alternative prior assumptions

@article{Gerosa2017ReanalysisOL,
  title={Reanalysis of LIGO black-hole coalescences with alternative prior assumptions},
  author={Davide Gerosa and Salvatore Vitale and Carl-Johan Haster and K. Chatziioannou and Aaron Zimmerman},
  journal={Proceedings of the International Astronomical Union},
  year={2017},
  volume={13},
  pages={22 - 28}
}
Abstract We present a critical reanalysis of the black-hole binary coalescences detected during LIGO’s first observing run under different Bayesian prior assumptions. We summarize the main findings of Vitale et al. (2017) and show additional marginalized posterior distributions for some of the binaries’ intrinsic parameters. These findings were presented at IAU Symposium 338, held on October 16-19, 2017 in Baton Rouge, LA, USA. 
2 Citations
Astrophysical Implications of GW190412 as a Remnant of a Previous Black-Hole Merger.
TLDR
Public GW190412 LIGO/Virgo data is analyzed with a Bayesian prior where the more massive black hole resulted from a previous merger and it is found that this interpretation is equally supported by the data.

References

SHOWING 1-10 OF 13 REFERENCES
Impact of Bayesian Priors on the Characterization of Binary Black Hole Coalescences.
TLDR
This work reanalyze the first detections performed by the twin LIGO interferometers using alternative (and astrophysically motivated) prior assumptions and finds different prior distributions can introduce deviations in the resulting posteriors that impact the physical interpretation of these systems.
Systematic challenges for future gravitational wave measurements of precessing binary black holes
The properties of precessing, coalescing binary black holes are presently inferred through comparison with two approximate models of compact binary coalescence. In this work we show that these two
GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2.
TLDR
The magnitude of modifications to the gravitational-wave dispersion relation is constrain, the graviton mass is bound to m_{g}≤7.7×10^{-23}  eV/c^{2} and null tests of general relativity are performed, finding that GW170104 is consistent with general relativity.
GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence.
TLDR
This second gravitational-wave observation provides improved constraints on stellar populations and on deviations from general relativity.
GW170608: Observation of a 19 solar-mass binary black hole coalescence
On 2017 June 8 at 02:01:16.49 UTC, a gravitational-wave (GW) signal from the merger of two stellar-mass black holes was observed by the two Advanced Laser Interferometer Gravitational-Wave
GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence.
TLDR
For the first time, the nature of gravitational-wave polarizations from the antenna response of the LIGO-Virgo network is tested, thus enabling a new class of phenomenological tests of gravity.
Reproducing GW150914: the first observation of gravitational waves from a binary black hole merger
TLDR
This is the first direct detection of gravitational waves and the first observation of a binary black hole merger, and these observations demonstrate the existence of binary stellar-mass black hole systems.
Characterization of the LIGO detectors during their sixth science run
In 2009–2010, the Laser Interferometer Gravitational-Wave Observatory (LIGO) operated together with international partners Virgo and GEO600 as a network to search for gravitational waves (GWs) of
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral.
TLDR
The association of GRB 170817A, detected by Fermi-GBM 1.7 s after the coalescence, corroborates the hypothesis of a neutron star merger and provides the first direct evidence of a link between these mergers and short γ-ray bursts.
Multi-messenger observations of a binary neutron star merger
On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced
...
1
2
...