2020ApJ...896..138Y

Query : 2020ApJ...896..138Y

2020ApJ...896..138Y - Astrophys. J., 896, 138-138 (2020/June-3)

Cosmic evolution of stellar-mass black hole merger rate in active galactic nuclei.

YANG Y., BARTOS I., HAIMAN Z., KOCSIS B., MARKA S. and TAGAWA H.

Abstract (from CDS):

Binary black hole mergers encode information about their environment and the astrophysical processes that led to their formation. Measuring the redshift dependence of their merger rate will help probe the formation and evolution of galaxies and the evolution of the star formation rate. Here we compute the cosmic evolution of the merger rate for stellar-mass binaries in the disks of active galactic nuclei (AGNs). We focus on recent evolution out to redshift z = 2, covering the accessible range of current Earth-based gravitational-wave observatories. On this scale, the AGN population density is the main contributor to redshift dependence. We find that the AGN-assisted merger rate varies by less than a factor of two in the range 0 < z <= 2, comparable to the expected level of evolution for globular clusters, but much smaller than the order-of-magnitude evolution for field binaries.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Gravitational wave astronomy - Active galactic nuclei

Simbad objects: 1

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Number of rows : 1
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 170729 GWE ~ ~           ~ 127 0

Query : 2020ApJ...896..138Y

Basic data :
GrW 170729 -- Gravitational Wave Event
Other object types: otypes_help 		GWE (GrW)
ICRS coord. (ep=J2000) : 		No Coord.
Radial velocity / Redshift / cz : 		V(km/s) 111858 [59958] / z(~) 0.48 [0.20] / cz 143900 [59958]
   D 2020ApJ...890....8C

Identifiers (1) :
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GrW 170729

References (127 between 1850 and 2026) (Total 127)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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