GW170104
 The signal of GW170104 measured by Hanford and Livingston. | |
| Date | 4 January 2017  |
|---|---|
| Redshift | 0.18 ±0.08 |
| Total energy output | ~ 2 M☉ × c2 |
| Other designations | GW170104 |
 Related media on Commons | |
GW170104 was a gravitational wave signal detected by the LIGO observatory on 4 January 2017. On 1 June 2017, the LIGO and Virgo collaborations announced that they had reliably verified the signal, making it the third such signal, after GW150914 and GW151226.[1][2]
Event detection
The signal was detected by LIGO at 10∶11:58.6 UTC, with the Hanford detector picking it up 3 milliseconds before the Livingston detector.
Astrophysical origin
Analysis indicated the signal resulted from the inspiral and merger of a pair of black holes (BBH) with 31.2+8.4
−6.0 and 19.4+5.3
−5.9 times the mass of the Sun, at a distance of 880+450
−390 megaparsecs (2.9 billion light years) from Earth. The resulting black hole had a mass of 48.7+5.7
−4.6 solar masses, two solar masses having been radiated away.
See also
References
- ^ B. P. Abbott; et al. (LIGO Scientific Collaboration and Virgo Collaboration) (1 June 2017). "GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2". Physical Review Letters. 118: 221101. doi:10.1103/PhysRevLett.118.221101.
- ^ Overbye, Dennis (1 June 2017). "Gravitational Waves Felt From Black-Hole Merger 3 Billion Light-Years Away". New York Times. Retrieved 1 June 2017.
