List of gravitational wave observations
Representation of the propagation of gravitational waves on the fabric of spacetime
This is a list of observed gravitational wave events. Observation of gravitational waves constitutes part of gravitational wave astronomy.
List of gravitational wave events
| Gravitational wave event | Detection time (UTC) | Publication date | Location | Luminosity distance | Energy | Source | Notes | Ref |
|---|---|---|---|---|---|---|---|---|
| GW150914 | 2015-09-14 09:50:45 | 2016-02-11 | Uncertain, probably in Southern sky | 410 Mpc (1,300 Mly) | 3 M☉×c2; 5.4×1047 joules (5.4×1054 erg; 5.4×103 foe) [NB 1] |
Merger of a 36 M☉ black hole with a 29 M☉ black hole, detected by LIGO | First gravitational waves detected | [1][2] |
| GW151226 | 2015-12-26 03:38:53 | 2016-06-15 | Uncertain | 440 Mpc (1,400 Mly) | 1 M☉×c2; 1.8×1047 joules (1.8×1054 erg; 1.8×103 foe) [NB 2] |
Merger of a 14 M☉ black hole with a 8 M☉ black hole, detected by LIGO | Second gravitational waves detected | [3][4] |
List of gravitational wave candidate events
- LVT151012. In the first observational run of Advanced LIGO detectors, from 12 September 2015 to 19 January 2016, they identified a third possible signal. This observation was not significant enough (about 2σ) to be declared a gravitational wave event.[5] It is likely to have resulted from a binary black hole merger, in which a 23 M☉ black hole collided with a 13 M☉ black hole.
Nomenclature
Gravitational wave events are named starting with the prefix GW (gravitational wave). The next two numbers are the year the event was observed, the middle two numbers are the month of observation and the final two numbers are the day of the month on which the event was observed. This is similar to the systematic naming for other kinds of astronomical event observations, such as those of gamma-ray bursts.
Notes
- ↑ 1.3×1047 cal; 5.1×1044 BTU; 1.5×1041 kWh; 1.3×1038 tonnes of TNT
- ↑ 4.3×1046 cal; 1.7×1044 BTU; 5.0×1040 kWh; 4.3×1037 tonnes of TNT
References
- ↑ B. P. Abbott; et al. (LIGO Scientific Collaboration and Virgo Collaboration) (11 February 2016). "Observation of Gravitational Waves from a Binary Black Hole Merger". Physical Review Letters. 116 (6): 061102. arXiv:1602.03837
. Bibcode:2016PhRvL.116f1102A. doi:10.1103/PhysRevLett.116.061102. PMID 26918975. - ↑ Tushna Commissariat (11 February 2016). "LIGO detects first ever gravitational waves – from two merging black holes". Physics World.
- ↑ B. P. Abbott; et al. (LIGO Scientific Collaboration and Virgo Collaboration) (15 June 2016). "GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence". Physical Review Letters. 116 (24): 241103. arXiv:1606.04855. Bibcode:2016PhRvL.116x1103A. doi:10.1103/PhysRevLett.116.241103. PMID 27367379.
- ↑ Nemiroff, R.; Bonnell, J., eds. (15 June 2016). "GW151226: A Second Confirmed Source of Gravitational Radiation". Astronomy Picture of the Day. NASA.
- ↑ "New insights emerge from LIGO's gravitational-wave data". Tushna Commissariat. Physicsworld.com. 15 February 2016.
External links
- LIGO, Detections
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