A Statistical Standard Siren Measurement of the Hubble Constant from the LIGO/Virgo Gravitational Wave Compact Object Merger GW190814 and Dark Energy Survey Galaxies

Palmese, A.; deVicente, J.; Pereira, M. S.; Annis, J.; Hartley, W.; Herner, K.; Soares-Santos, M.; Crocce, M.; Huterer, D.; Magaña Hernandez, I.; Garcia, A.; Garcia-Bellido, J.; Gschwend, J.; Holz, D. E.; Kessler, R.; Lahav, O.; Morgan, R.; Nicolaou, C.; Conselice, C.; Foley, R. J.; Gill, M. S.; Abbott, T. C.; Aguena, M.; Allam, S.; Avila, S.; Bechtol, K.; Bertin, E.; Bhargava, S.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Kind, M. Carrasco; Carretero, J.; Castander, F. J.; Chang, C.; Costanzi, M.; Costa, L. da; Davis, T. M.; Desai, S.; Diehl, H. T.; Doel, P.; Drlica-Wagner, A.; Estrada, J.; Everett, S.; Evrard, A. E.; Fernandez, E.; Finley, D. A.; Flaugher, B.; Fosalba, P.; Frieman, J.; Gaztanaga, E.; Gerdes, D. W.; Gruen, D.; Gruendl, R. A.; Gutierrez, G.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; James, D. J.; Kent, S.; Krause, E.; Kuehn, K.; Lin, H.; Maia, M. G.; March, M.; Marshall, J. L.; Melchior, P.; Menanteau, F.; Miquel, R.; Ogando, R. C.; Paz-Chinchón, F.; Plazas, A. A.; Roodman, A.; Sako, M.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, I.; Smith, J. Allyn.; Smith, M.; Suchyta, E.; Tarle, G.; Troxel, M. A.; Tucker, D. L.; Walker, A. R.; Wester, W.; Wilkinson, R. D.; Zuntz, J.

doi:10.3847/2041-8213/abaeff

Title: A Statistical Standard Siren Measurement of the Hubble Constant from the LIGO/Virgo Gravitational Wave Compact Object Merger GW190814 and Dark Energy Survey Galaxies

Journal Article · 07 September 2020 · The Astrophysical Journal. Letters (Online)

DOI: https://doi.org/10.3847/2041-8213/abaeff · OSTI ID:1638663

; deVicente, J.; Pereira, M. S.;

; Hartley, W.; Herner, K.;

; Crocce, M.; Huterer, D.; Magaña Hernandez, I.; Garcia, A.; Garcia-Bellido, J.;

;

; Lahav, O.;

; Nicolaou, C.;

; Foley, R. J. more »

We present a measurement of the Hubble constant H₀ using the gravitational wave (GW) event GW190814, which resulted from the coalescence of a 23 M_⊙ black hole with a 2.6 M_⊙ compact object, as a standard siren. No compelling electromagnetic counterpart has been identified for this event; thus our analysis accounts for thousands of potential host galaxies within a statistical framework. The redshift information is obtained from the photometric redshift (photo-z) catalog from the Dark Energy Survey. The luminosity distance is provided by the LIGO/Virgo gravitational wave sky map. Since this GW event has the second-smallest localization volume after GW170817, GW190814 is likely to provide the best constraint on cosmology from a single standard siren without identifying an electromagnetic counterpart. Furthermore, our analysis uses photo-z probability distribution functions and corrects for photo-z biases. We also reanalyze the binary black hole GW170814 within this updated framework. We explore how our findings impact the H₀ constraints from GW170817, the only GW merger associated with a unique host galaxy. From a combination of GW190814, GW170814, and GW170817, our analysis yields H₀=72.0$$_{+12}^{–8.2}$$ km s^-1 Mpc^-1 (68% highest-density interval, HDI) for a prior in H₀ uniform between [20 and 140] km s^-1 Mpc^-1. The addition of GW190814 and GW170814 to GW170817 improves the 68% HDI from GW170817 alone by ~18%, showing how well-localized mergers without counterparts can provide a significant contribution to standard siren measurements, provided that a complete galaxy catalog is available at the location of the event.

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Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Ministry of Economic Affairs and Digital Transformation of Spain (MINECO); Centro de Excelencia; European Research Council (ERC)

Contributing Organization:: DES Collaboration

Grant/Contract Number:: AC02-07CH11359; AST-1138766; AST-1536171; AYA2015-71825; ESP2015-88861; FPA2015-68048; SEV-2016-0588; SEV-2016-0597; MDM-2015-0509; 240672; 291329; 306478; CE110001020; SC0019193

OSTI ID:: 1638663

Alternate ID(s):: OSTI ID: 1784509

Report Number(s):: arXiv:2006.14961; FERMILAB-PUB-20-216-AE; DES-2020-0548; oai:inspirehep.net:1803378; TRN: US2201799

Journal Information:: The Astrophysical Journal. Letters (Online), Vol. 900, Issue 2; ISSN 2041-8213

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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