2025A&A...694A..95Z

Query : 2025A&A...694A..95Z

2025A&A...694A..95Z - Astronomy and Astrophysics, volume 694A95 (2025/2-1)

Gravitational wave memory imprints on the CMB from populations of massive black hole mergers.

ZWICK L., O'NEILL D., HENDRIKS K., KIRKEBERG P. and MIRAVET-TENES M.

Abstract (from CDS):

Aims. Our aim is to showcase and characterise the rich phenomenology of temperature fluctuation patterns that are imprinted on the cosmic microwave background (CMB) by the gravitational wave memory (GWM) of massive black hole mergers.
Methods. We analysed both individual binaries as well as populations of binaries, distributed in local cosmological boxes at a given redshift.
Results. The magnitude of the temperature fluctuations scales primarily as a function of binary total mass and pattern angular scale, and accumulates as a random-walk process when populations of mergers are considered. Fluctuations of order ∼10–12 K are reached across scales of ∼1' to ∼1° for realistic volumetric merger rates of 10–3 Mpc–3 Gyr–1, as is appropriate for massive galaxies at z = 1. We determined numerically that GWM temperature fluctuations result in a universal power spectrum with a scaling of P(k)∝k–2.7.
Conclusions. While not detectable given the limitations of current all-sky CMB surveys, our work explicitly shows how every black hole merger in the Universe left us its unique faint signature.

Abstract Copyright: © The Authors 2025

Journal keyword(s): black hole physics - gravitational waves - cosmic background radiation

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 FIRST J004148.2-091702 rG 00 41 48.2308999032 -09 17 03.269185620   17.02 16.09     ~ 42 0

Query : 2025A&A...694A..95Z

Basic data :
FIRST J004148.2-091702 -- Radio Galaxy
Other object types: otypes_help 		GrG (), G (2014MNRAS,6dFGS,...), GiC (NFP,[CZ2003],...), rG (2005MNRAS), Rad (FIRST,[LO95]), * (Gaia), Opt (SDSS)
ICRS coord. (ep=J2000) : 		00 41 48.2308999032 -09 17 03.269185620 (Optical) [ 4.6626 1.4520 90 ] C 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		00 39 16.4220513842 -09 33 29.971256834 [ 4.6626 1.4520 90 ]
Gal coord. (ep=J2000) : 		115.2141113355367 -72.0114730866526 [ 4.6626 1.4520 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 15426 [3] / z(spectroscopic) 0.05285 [0.00001] / cz 15844.0 [3.0]
   (Opt) C 2012ApJS..203...21A
Morphological type: 		-3 D 2019MNRAS.487.5572M
Angular size (arcmin): 		0.353723 0.318988 86 (Opt) B 2023ApJS..269....3M
Fluxes (11) :
B 17.02 [~] E ~
V 16.09 [~] E ~
G 19.862265 [0.011939] C 2020yCat.1350....0G
J 13.322 [0.043] C 2006AJ....131.1163S
H 12.525 [0.050] C 2006AJ....131.1163S
K 12.156 [0.072] C 2006AJ....131.1163S
u (AB) 18.092 [0.029] C 2008ApJS..175..297A
g (AB) 16.139 [0.004] C 2008ApJS..175..297A
r (AB) 15.228 [0.003] C 2008ApJS..175..297A
i (AB) 14.791 [0.003] C 2008ApJS..175..297A
z (AB) 14.441 [0.005] C 2008ApJS..175..297A
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 720 Display criteria :

Identifiers (17) :
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FIRST J004148.2-091702 SDSS J004148.22-091703.1 [H37] 15b [SDG98] 2-430
6dFGS gJ004148.2-091703 WINGS J004148.21-091703.3 [LO95] 0039-095A Gaia DR3 2426019080374195968
LEDA 93224 [BKH2005b] 010.45090-9.2842 [MKD92] ACO 85 82
2MASX J00414822-0917029 [CZ2003] 85A-993 1 [MZR2005] A85.J004148-091704
NFP J004148.2-091703 [DFL98] 236 [SDG98] 1-1930

References (42 between 1850 and 2026) (Total 42)
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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Velocities : 9   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : FIRST J004148.2-091702

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FIRST J004148.2-091702 2MASX J00414822-0917029 SDSS J004148.22-091703.1 Gaia DR3 2426019080374195968

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