TY - JOUR
T1 - GW190521: A Binary Black Hole Merger with a Total Mass of 150 M⊙
AU - Abbott, B.P.
AU - Abbott, R.
AU - Abbott, T.D.
AU - Abraham, S.
AU - Acernese, F.
AU - Ackley, K.
AU - Adams, C.
AU - Adhikari, R.X.
AU - Adya, V.B.
AU - Affeldt, C.
AU - Agathos, M.
AU - Agatsuma, K.
AU - Aggarwal, N.
AU - Aguiar, O.D.
AU - Aiello, L.
AU - Ain, A.
AU - Ajith, P.
AU - Allen, G.
AU - Allocca, A.
AU - Aloy, M.A.
AU - Altin, P.A.
AU - Amato, A.
AU - Anand, S.
AU - Ananyeva, A.
AU - Anderson, S.B.
AU - Anderson, W.G.
AU - Angelova, S.V.
AU - Antier, S.
AU - Appert, S.
AU - Arai, K.
AU - Araya, M.C.
AU - Areeda, J.S.
AU - Arene, M.
AU - Arnaud, N.
AU - Aronson, S.M.
AU - Ascenzi, S.
AU - Ashton, G.
AU - Aston, S.M.
AU - Astone, P.
AU - Aubin, F.
AU - Aufmuth, P.
AU - AultONeal, K.
AU - Austin, C.
AU - Avendano, V.
AU - Avila-Alvarez, A.
AU - Babak, S.
AU - Bacon, P.
AU - Badaracco, F.
AU - Bader, M.K.M.
AU - Bae, S.
AU - LIGO Scientific Collaboration
AU - Virgo Collaboration
AU - Hild, Stefan
AU - Koekoek, Gideon
AU - van den Brand, Johannes
PY - 2020/9/2
Y1 - 2020/9/2
N2 - On May 21, 2019 at 03:02:29 UTC Advanced LIGO and Advanced Virgo observed a short duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise ratio of 14.7, and an estimated false-alarm rate of 1 in 4900 yr using a search sensitive to generic transients. If GW190521 is from a quasicircular binary inspiral, then the detected signal is consistent with the merger of two black holes with masses of 85(-14)(+21) M-circle dot and 66(-18)(+17) M-circle dot (90% credible intervals). We infer that the primary black hole mass lies within the gap produced by (pulsational) pair-instability supernova processes, with only a 0.32% probability of being below 65 M-circle dot. We calculate the mass of the remnant to be 142(-16)(+28) M-circle dot, which can be considered an intermediate mass black hole (IMBH). The luminosity distance of the source is 5.3(-2.6)(+2.4) Gpc, corresponding to a redshift of 0.82(-0.34)(+0.28). The inferred rate of mergers similar to GW190521 is 0.13(-0.11)(+0.30) Gpc(-3) yr(-1).
AB - On May 21, 2019 at 03:02:29 UTC Advanced LIGO and Advanced Virgo observed a short duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise ratio of 14.7, and an estimated false-alarm rate of 1 in 4900 yr using a search sensitive to generic transients. If GW190521 is from a quasicircular binary inspiral, then the detected signal is consistent with the merger of two black holes with masses of 85(-14)(+21) M-circle dot and 66(-18)(+17) M-circle dot (90% credible intervals). We infer that the primary black hole mass lies within the gap produced by (pulsational) pair-instability supernova processes, with only a 0.32% probability of being below 65 M-circle dot. We calculate the mass of the remnant to be 142(-16)(+28) M-circle dot, which can be considered an intermediate mass black hole (IMBH). The luminosity distance of the source is 5.3(-2.6)(+2.4) Gpc, corresponding to a redshift of 0.82(-0.34)(+0.28). The inferred rate of mergers similar to GW190521 is 0.13(-0.11)(+0.30) Gpc(-3) yr(-1).
KW - pair-instability
KW - PAIR-INSTABILITY
U2 - 10.1103/PhysRevLett.125.101102
DO - 10.1103/PhysRevLett.125.101102
M3 - Article
C2 - 32955328
SN - 0031-9007
VL - 125
JO - Physical Review Letters
JF - Physical Review Letters
IS - 10
M1 - 101102
ER -