Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/119428
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | 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: | Soares-Santos, M. Palmese, A. Hartley, W. Annis, J. Garcia-Bellido, J. Lahav, O. Doctor, Z. Fishbach, M. Holz, D.E. Lin, H. Pereira, M.E.S. Garcia, A. Herner, K. Kessler, R. Peiris, H. Sako, M. Allam, S. Brout, D. Carnero Rosell, A. Chen, H.Y. et al. |
Citation: | Letters of the Astrophysical Journal, 2019; 876(1):1-15 |
Publisher: | American Astronomical Society |
Issue Date: | 2019 |
ISSN: | 2041-8205 2041-8213 |
Statement of Responsibility: | M. Soares-Santos, A. Palmese, W. Hartley ... Won Kim … Jesper Munch … Peter J Veitch … et al. (The LIGO Scientific Collaboration and the Virgo Collaboration) |
Abstract: | We present a multi-messenger measurement of the Hubble constant H0 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 H0 75 32 km s Mpc = 40 1 1 - + - -, 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 H0 78 24 km s Mpc = 96 1 1 - + - - (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 H0. |
Keywords: | Catalogs; cosmology; observations; gravitational waves; surveys |
Rights: | © 2019. The American Astronomical Society. All rights reserved. |
DOI: | 10.3847/2041-8213/ab14f1 |
Grant ID: | http://purl.org/au-research/grants/arc/CE1101020 ARC |
Published version: | http://dx.doi.org/10.3847/2041-8213/ab14f1 |
Appears in Collections: | Aurora harvest 4 Physics publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.