GW 190412 was a gravitational wave (GW) signal observed by the LIGO and Virgo detectors on 12 April 2019.[1][2] In April 2020, it was announced as the first time a collision of a pair of very differently sized black holes has been detected.[3] As a result of this asymmetry, the signal included two measurable harmonics with frequencies approximately a factor 1.5 (a perfect fifth) apart.[2][4]
The collision took place 2.4 billion light-years away.[3] The heavier of the black holes had a mass of 29.7 solar masses, and the lighter one around 8.4 solar masses.[3] The difference in mass meant that the secondary harmonic in the signal was strong enough to be detected, allowing researchers to perform a test of general relativity and determine that the larger black hole was spinning.[3]
gw190412, 190412, gravitational, wave, signal, observed, ligo, virgo, detectors, april, 2019, april, 2020, announced, first, time, collision, pair, very, differently, sized, black, holes, been, detected, result, this, asymmetry, signal, included, measurable, h. GW 190412 was a gravitational wave GW signal observed by the LIGO and Virgo detectors on 12 April 2019 1 2 In April 2020 it was announced as the first time a collision of a pair of very differently sized black holes has been detected 3 As a result of this asymmetry the signal included two measurable harmonics with frequencies approximately a factor 1 5 a perfect fifth apart 2 4 The collision took place 2 4 billion light years away 3 The heavier of the black holes had a mass of 29 7 solar masses and the lighter one around 8 4 solar masses 3 The difference in mass meant that the secondary harmonic in the signal was strong enough to be detected allowing researchers to perform a test of general relativity and determine that the larger black hole was spinning 3 See also editGravitational wave astronomy List of gravitational wave observationsReferences edit Superevent info S190412m LIGO Retrieved 12 April 2019 a b The LIGO Scientific Collaboration the Virgo Collaboration Abbott R Abbott T D Abraham S Acernese F Ackley K Adams C Adhikari R X Adya V B Affeldt C Agathos M Agatsuma K Aggarwal N Aguiar O D Aich A Aiello L Ain A Ajith P Akcay S Allen G Allocca A Altin P A Amato A Anand S Ananyeva A Anderson S B Anderson W G Angelova S V et al 17 April 2020 GW190412 Observation of a Binary Black Hole Coalescence with Asymmetric Masses Physical Review D 102 4 043015 arXiv 2004 08342 Bibcode 2020PhRvD 102d3015A doi 10 1103 PhysRevD 102 043015 S2CID 215814461 a b c d Starr Michelle Astronomers Find First Ever Collision of Black Holes With a Strange Mass Discrepancy ScienceAlert Berry Christopher 18 April 2020 GW190412 A new flavour of binary black hole Christopher Berry External links editGW190412 Binary Black Hole Merger with spin on YouTube Portals nbsp Astronomy nbsp Physics nbsp This black hole related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title GW190412 amp oldid 1204102090, wikipedia, wiki, book, books, library,
