@article{138ce2ab1ad44ba6b92ee2a7f7f0d3a1,
title = "Improved analysis of GW150914 using a fully spin-precessing waveform model",
abstract = "This paper presents updated estimates of source parameters for GW150914, a binary black-hole coalescence event detected by the Laser Interferometer Gravitational-wave Observatory (LIGO) in 2015 [Abbott et al. Phys. Rev. Lett. 116, 061102 (2016).]. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] presented parameter estimation of the source using a 13-dimensional, phenomenological precessing-spin model (precessing IMRPhenom) and an 11-dimensional nonprecessing effective-one body (EOB) model calibrated to numerical-relativity simulations, which forces spin alignment (nonprecessing EOBNR). Here, we present new results that include a 15-dimensional precessingspin waveform model (precessing EOBNR) developed within the EOB formalism. We find good agreement with the parameters estimated previously [Abbott et al. Phys. Rev. Lett. 116, 241102 (2016).], and we quote updated component masses of 35 +5 -3 M· and 30 +5 -3 M· (where errors correspond to 90% symmetric credible intervals). We also present slightly tighter constraints on the dimensionless spin magnitudes of the two black holes, with a primary spin estimate < 0.65 and a secondary spin estimate < 0.75 at 90% probability. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] estimated the systematic parameter-extraction errors due to waveform-model uncertainty by combining the posterior probability densities of precessing IMRPhenom and nonprecessing EOBNR. Here, we find that the two precessing-spin models are in closer agreement, suggesting that these systematic errors are smaller than previously quoted.",
author = "{LIGO Scientific Collaboration and Virgo Collaborations} and Abbott, {B. P.} and R. Abbott and Abbott, {T. D.} and Abernathy, {M. R.} and F. Acernese and K. Ackley and C. Adams and T. Adams and P. Addesso and Adhikari, {R. X.} and Adya, {V. B.} and C. Affeldt and M. Agathos and K. Agatsuma and N. Aggarwal and Aguiar, {O. D.} and L. Aiello and A. Ain and P. Ajith and B. Allen and A. Allocca and Altin, {P. A.} and Anderson, {S. B.} and Anderson, {W. G.} and K. Arai and Araya, {M. C.} and Arceneaux, {C. C.} and Areeda, {J. S.} and N. Arnaud and Arun, {K. G.} and S. Ascenzi and G. Ashton and M. Ast and Aston, {S. M.} and P. Astone and P. Aufmuth and C. Aulbert and S. Babak and P. Bacon and Bader, {M. K.M.} and Baker, {P. T.} and F. Baldaccini and G. Ballardin and Ballmer, {S. W.} and Barayoga, {J. C.} and Barclay, {S. E.} and Barish, {B. C.} and D. Barker and F. Barone and B. Barr and L. Barsotti and M. Barsuglia and D. Barta and J. Bartlett and I. Bartos and R. Bassiri and A. Basti and Batch, {J. C.} and C. Baune and V. Bavigadda and M. Bazzan and M. Bejger and Bell, {A. S.} and Berger, {B. K.} and G. Bergmann and Berry, {C. P.L.} and D. Bersanetti and A. Bertolini and J. Betzwieser and S. Bhagwat and R. Bhandare and Bilenko, {I. A.} and G. Billingsley and J. Birch and R. Birney and O. Birnholtz and S. Biscans and A. Bisht and M. Bitossi and C. Biwer and Bizouard, {M. A.} and Blackburn, {J. K.} and Blair, {C. D.} and Blair, {D. G.} and Blair, {R. M.} and S. Bloemen and O. Bock and M. Boer and G. Bogaert and C. Bogan and A. Bohe and C. Bond and F. Bondu and R. Bonnand and Boom, {B. A.} and R. Bork and V. Boschi and S. Bose and Y. Bouffanais and A. Bozzi and C. Bradaschia and Brady, {P. R.} and Braginsky, {V. B.} and M. Branchesi and Brau, {J. E.} and T. Briant and A. Brillet and M. Brinkmann and V. Brisson and P. Brockill and Broida, {J. E.} and Brooks, {A. F.} and Brown, {D. A.} and Brown, {D. D.} and Brown, {N. M.} and S. Brunett and Buchanan, {C. C.} and A. Buikema and T. Bulik and Bulten, {H. J.} and A. Buonanno and D. Buskulic and C. Buy and Byer, {R. L.} and M. Cabero and L. Cadonati and G. Cagnoli and C. Cahillane and {Calder{\'o}n Bustillo}, J. and T. Callister and E. Calloni and Camp, {J. B.} and Cannon, {K. C.} and J. Cao and Capano, {C. D.} and E. Capocasa and F. Carbognani and S. Caride and {Casanueva Diaz}, C. and J. Casentini and S. Caudill and M. Cavagli{\`a} and F. Cavalier and R. Cavalieri and G. Cella and Cepeda, {C. B.} and {Cerboni Baiardi}, L. and G. Cerretani and E. Cesarini and Chamberlin, {S. J.} and M. Chan and S. Chao and P. Charlton and E. Chassande-Mottin and Cheeseboro, {B. D.} and Chen, {H. Y.} and Y. Chen and C. Cheng and A. Chincarini and A. Chiummo and Cho, {H. S.} and M. Cho and Chow, {J. H.} and N. Christensen and Q. Chu and S. Chua and S. Chung and G. Ciani and F. Clara and Clark, {J. A.} and F. Cleva and E. Coccia and Cohadon, {P. F.} and A. Colla and Collette, {C. G.} and L. Cominsky and M. Constancio and A. Conte and L. Conti and D. Cook and Corbitt, {T. R.} and N. Cornish and A. Corsi and S. Cortese and Costa, {C. A.} and Coughlin, {M. W.} and Coughlin, {S. B.} and Coulon, {J. P.} and Countryman, {S. T.} and P. Couvares and Cowan, {E. E.} and Coward, {D. M.} and Cowart, {M. J.} and Coyne, {D. C.} and R. Coyne and K. Craig and Creighton, {J. D.E.} and J. Cripe and Crowder, {S. G.} and A. Cumming and L. Cunningham and E. Cuoco and {Dal Canton}, T. and Danilishin, {S. L.} and S. D'Antonio and K. Danzmann and Darman, {N. S.} and A. Dasgupta and {Da Silva Costa}, {C. F.} and V. Dattilo and I. Dave and M. Davier and Davies, {G. S.} and Daw, {E. J.} and R. Day and S. De and D. DeBra and G. Debreczeni and J. Degallaix and {De Laurentis}, M. and S. Del{\'e}glise and {Del Pozzo}, W. and T. Denker and T. Dent and V. Dergachev and {De Rosa}, R. and DeRosa, {R. T.} and R. DeSalvo and Devine, {R. C.} and S. Dhurandhar and D{\'i}az, {M. C.} and {Di Fiore}, L. and {Di Giovanni}, M. and {Di Girolamo}, T. and {Di Lieto}, A. and {Di Pace}, S. and {Di Palma}, I. and {Di Virgilio}, A. and V. Dolique and F. Donovan and Dooley, {K. L.} and S. Doravari and R. Douglas and Downes, {T. P.} and Howell, {E. J.} and L. Ju and L. Wen and C. Zhao and Zhu, {X. J.}",
year = "2016",
doi = "10.1103/PhysRevX.6.041014",
language = "English",
volume = "6",
journal = "Physical Review X",
issn = "2160-3308",
publisher = "American Physical Society",
number = "4",
}