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GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2

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  • معلومة اضافية
    • Contributors:
      Abbott; Abbott, B. P.; Abbott, R.; Acernese, T. D.; Ackley, F.; Adams, K.; Adams, C.; Addesso, T.; Adhikari, P.; Adya, R. X.; Affeldt, V. B.; Afrough, C.; Agarwal, M.; Agathos, B.; Agatsuma, M.; Aggarwal, K.; Aguiar, N.; Aiello, O. D.; Ain, L.; Ajith, A.; Allen, P.; Allen, B.; Allocca, G.; Altin, A.; Amato, P. A.; Ananyeva, A.; Anderson, A.; Anderson, S. B.; Antier, W. G.; Appert, S.; Arai, S.; Araya, K.; Areeda, M. C.; Arnaud, J. S.; Arun, N.; Ascenzi, K. G.; Ashton, S.; Ast, G.; Aston, M.; Astone, S. M.; Aufmuth, P.; Aulbert, P.; Aultoneal, C.; Avila-Alvarez, K.; Babak, A.; Bacon, S.; Bader, P.; Bae, M. K. M.; Baker, S.; Baldaccini, P. T.; Ballardin, F.; Ballmer, G.; Banagiri, S. W.; Barayoga, S.; Barclay, J. C.; Barish, S. E.; Barker, B. C.; Barone, D.; Barr, F.; Barsotti, B.; Barsuglia, L.; Barta, M.; Bartlett, D.; Bartos, J.; Bassiri, I.; Basti, R.; Batch, A.; Baune, J. C.; Bawaj, C.; Bazzan, M.; Becsy, M.; Beer, B.; Bejger, C.; Belahcene, M.; Bell, I.; Berger, A. S.; Bergmann, B. K.; Berry, G.; Bersanetti, C. P. L.; Bertolini, D.; Betzwieser, A.; Bhagwat, J.; Bhandare, S.; Bilenko, R.; Billingsley, I. A.; Billman, G.; Birch, C. R.; Birney, J.; Birnholtz, R.; Biscans, O.; Bisht, S.; Bitossi, A.; Biwer, M.; Bizouard, C.; Blackburn, M. A.; Blackman, J. K.; Blair, J.; Blair, C. D.; Blair, D. G.; Bloemen, R. M.
    • الموضوع:
      2017
    • Collection:
      CAMPUS Pubblicazioni Scientifiche Unicam (Università di Camerino)
    • نبذة مختصرة :
      We describe the observation of GW170104, a gravitational-wave signal produced by the coalescence of a pair of stellar-mass black holes. The signal was measured on January 4, 2017 at 10: 11: 58.6 UTC by the twin advanced detectors of the Laser Interferometer Gravitational-Wave Observatory during their second observing run, with a network signal-to-noise ratio of 13 and a false alarm rate less than 1 in 70 000 years. The inferred component black hole masses are 31.2(-6.0)(+8.4)M-circle dot and 19.4(-5.9)(+5.3)M(circle dot) (at the 90% credible level). The black hole spins are best constrained through measurement of the effective inspiral spin parameter, a mass-weighted combination of the spin components perpendicular to the orbital plane, chi(eff) = -0.12(-0.30)(+0.21) . This result implies that spin configurations with both component spins positively aligned with the orbital angular momentum are disfavored. The source luminosity distance is 880(-390)(+450) Mpc corresponding to a redshift of z = 0.18(-0.07)(+0.08) . We constrain the magnitude of modifications to the gravitational-wave dispersion relation and perform null tests of general relativity. Assuming that gravitons are dispersed in vacuum like massive particles, we bound the graviton mass to m(g) <= 7.7 x 10(-23) eV/c(2). In all cases, we find that GW170104 is consistent with general relativity.
    • File Description:
      STAMPA
    • Relation:
      info:eu-repo/semantics/altIdentifier/wos/WOS:000402483300004; volume:118; issue:22; firstpage:1; lastpage:17; numberofpages:17; journal:PHYSICAL REVIEW LETTERS; http://hdl.handle.net/11581/405207; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85020048154; https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.118.221101
    • الرقم المعرف:
      10.1103/PhysRevLett.118.221101
    • الدخول الالكتروني :
      http://hdl.handle.net/11581/405207
      https://doi.org/10.1103/PhysRevLett.118.221101
      https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.118.221101
    • Rights:
      info:eu-repo/semantics/openAccess
    • الرقم المعرف:
      edsbas.F8CF42B2