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First Measurement of the Hubble Constant from a Dark Standard Siren using the Dark Energy Survey Galaxies and the LIGO/Virgo Binary-Black-hole Merger GW170814

  • Author(s): Soares-Santos, M
  • Palmese, A
  • Hartley, W
  • Annis, J
  • Garcia-Bellido, J
  • Lahav, O
  • Doctor, Z
  • Fishbach, M
  • Holz, DE
  • Lin, H
  • Pereira, MES
  • Garcia, A
  • Herner, K
  • Kessler, R
  • Peiris, HV
  • Sako, M
  • Allam, S
  • Brout, D
  • Rosell, AC
  • Chen, HY
  • Conselice, C
  • Derose, J
  • Devicente, J
  • Diehl, HT
  • Gill, MSS
  • Gschwend, J
  • Sevilla-Noarbe, I
  • Tucker, DL
  • Wechsler, R
  • Berger, E
  • Cowperthwaite, PS
  • Metzger, BD
  • Williams, PKG
  • Abbott, TMC
  • Abdalla, FB
  • Avila, S
  • Bechtol, K
  • Bertin, E
  • Brooks, D
  • Buckley-Geer, E
  • Burke, DL
  • Kind, MC
  • Carretero, J
  • Castander, FJ
  • Crocce, M
  • Cunha, CE
  • D'andrea, CB
  • Da Costa, LN
  • Davis, C
  • Desai, S
  • Doel, P
  • Drlica-Wagner, A
  • Eifler, TF
  • Evrard, AE
  • Flaugher, B
  • Fosalba, P
  • Frieman, J
  • Gaztanaga, E
  • Gerdes, DW
  • Gruen, D
  • Gruendl, RA
  • Gutierrez, G
  • Hollowood, DL
  • Hoyle, B
  • James, DJ
  • Jeltema, T
  • Kuehn, K
  • Kuropatkin, N
  • Li, TS
  • Lima, M
  • Maia, MAG
  • Marshall, JL
  • Menanteau, F
  • Miquel, R
  • Neilsen, E
  • Ogando, RLC
  • Plazas, AA
  • Romer, AK
  • Roodman, A
  • Sanchez, E
  • Scarpine, V
  • Schindler, R
  • Schubnell, M
  • Serrano, S
  • Smith, M
  • Smith, RC
  • Sobreira, F
  • Suchyta, E
  • Swanson, MEC
  • Tarle, G
  • Thomas, RC
  • Walker, AR
  • Wester, W
  • Zuntz, J
  • Abbott, BP
  • Abbott, R
  • Abbott, TD
  • Abraham, S
  • Acernese, F
  • Ackley, K
  • et al.
Abstract

© 2019. The American Astronomical Society. All rights reserved. We present a multi-messenger measurement of the Hubble constant H 0 using the binary-black-hole merger GW170814 as a standard siren, combined with a photometric redshift catalog from the Dark Energy Survey (DES). The luminosity distance is obtained from the gravitational wave signal detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO)/Virgo Collaboration (LVC) on 2017 August 14, and the redshift information is provided by the DES Year 3 data. Black hole mergers such as GW170814 are expected to lack bright electromagnetic emission to uniquely identify their host galaxies and build an object-by-object Hubble diagram. However, they are suitable for a statistical measurement, provided that a galaxy catalog of adequate depth and redshift completion is available. Here we present the first Hubble parameter measurement using a black hole merger. Our analysis results in , which is consistent with both SN Ia and cosmic microwave background measurements of the Hubble constant. The quoted 68% credible region comprises 60% of the uniform prior range [20, 140] km s-1 Mpc-1, and it depends on the assumed prior range. If we take a broader prior of [10, 220] km s-1 Mpc-1, we find (57% of the prior range). Although a weak constraint on the Hubble constant from a single event is expected using the dark siren method, a multifold increase in the LVC event rate is anticipated in the coming years and combinations of many sirens will lead to improved constraints on H 0.

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