2023RNAAS...7..250B

Query : 2023RNAAS...7..250B

2023RNAAS...7..250B - Research Notes of the AAS, 7, 250 (2023/November-0)

A Dark Siren Measurement of the Hubble Constant with the LIGO/Virgo Gravitational Wave Event GW190412 and DESI Galaxies.

BALLARD W., PALMESE A., MAGANA HERNANDEZ I., BENZVI S., MOON J., ROSS A.J., ROSSI G., AGUILAR J., AHLEN S., BLUM R., BROOKS D., CLAYBAUGH T., DE LA MACORRA A., DEY A., DOEL P., FORERO-ROMERO J.E., GONTCHO A GONTCHO S., HONSCHEID K., KREMIN A., MANERA M., MEISNER A., MIQUEL R., MOUSTAKAS J., PRADA F., SANCHEZ E., TARLE G., ZHOU Z. (The DESI Collaboration)

Abstract (from CDS):

We present a measurement of the Hubble Constant H0 using the gravitational wave event GW190412, an asymmetric binary black hole merger detected by LIGO/Virgo, as a dark standard siren. This event does not have an electromagnetic counterpart, so we use the statistical standard siren method and marginalize over potential host galaxies from the Dark Energy Spectroscopic Instrument (DESI) survey. GW190412 is well-localized to 12 deg2 (90% credible interval), so it is promising for a dark siren analysis. The dark siren value for ${H}_{0}={85.4}_{-33.9}^{+29.1}$ km s–1 Mpc–1, with a posterior shape that is consistent with redshift overdensities. When combined with the bright standard siren measurement from GW170817 we recover ${H}_{0}={77.96}_{-5.03}^{+23.0}$ km s–1 Mpc–1, consistent with both early and late-time Universe measurements of H0. This work represents the first standard siren analysis performed with DESI data, and includes the most complete spectroscopic sample used in a dark siren analysis to date.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Gravitational waves - Gravitational wave astronomy - Cosmology - Hubble constant - Observational cosmology - Cosmological parameters

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GrW 170817 GWE 13 09 48.0850 -23 22 53.343           ~ 2683 0
2 GrW 190412 GWE ~ ~           ~ 169 0

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