2025ApJ...987..106C

Query : 2025ApJ...987..106C

2025ApJ...987..106C - Astrophys. J., 987, 106 (2025/July-2)

Quasars Can Signpost Supermassive Black Hole Binaries.

CASEY-CLYDE J.A., MINGARELLI C.M.F., GREENE J.E., GOULDING A.D., CHEN S. and TRUMP J.R.

Abstract (from CDS):

Supermassive black holes (SMBHs) are found in the centers of massive galaxies, and galaxy mergers should eventually lead to SMBH mergers. Quasar activity has long been associated with galaxy mergers, so here we investigate if supermassive black hole binaries (SMBHBs) are preferentially found in quasars. Our multimessenger investigation folds together a gravitational-wave background signal from NANOGrav, a sample of periodic active galactic nucleus candidates from the Catalina Real-Time Transient Survey, and a quasar mass function, to estimate an upper limit on the fraction of quasars which could host an SMBHB. We find at 95% confidence that quasars are at most 5 times as likely to host an SMBHB as a random galaxy. Pulsar timing arrays may therefore be more likely to find SMBHBs by prioritizing quasars over a random selection of galaxies in their searches.

Journal keyword(s): Gravitational wave astronomy - Gravitational waves - Quasars - Supermassive black holes

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	2MASS J11391654+2544126	QSO	11 39 16.4753036784	+25 44 12.739874712		18.60	18.28			~	16	0

Query : 2025ApJ...987..106C

Basic data :

2MASS J11391654+2544126 -- Quasar

QSO (2013ApJS,[VV2010]), * (Gaia), NIR (2MASS), Opt (SDSS)

11 39 16.4753036784 +25 44 12.739874712 (Optical) [ 0.1066 0.0886 90 ] A 2020yCat.1350....0G

11 36 39.6122996101 +26 00 50.193166681 [ 0.1066 0.0886 90 ]

213.7714099101116 +73.7993374786611 [ 0.1066 0.0886 90 ]

-0.031 0.002 [0.137 0.097 90] A 2020yCat.1350....0G

V(km/s) 181031 [459] / z(spectroscopic) 1.01213 [0.00153] / cz 303428.9 [458.7] D 2009ApJS..182..543A

0.0589 [0.1252] A 2020yCat.1350....0G

B 18.60 [~] D 2010A&A...518A..10V

V 18.28 [~] D 2010A&A...518A..10V

G 17.690767 [0.004076] C 2020yCat.1350....0G

J 16.568 [0.123] C 2003yCat.2246....0C

H 16.493 [0.275] D 2003yCat.2246....0C

K 15.679 [0.205] C 2003yCat.2246....0C

u (AB) 18.3474 [0.0255] C 2020ApJS..250....8L

g (AB) 18.0963 [0.0174] C 2020ApJS..250....8L

r (AB) 17.8157 [0.0197] C 2020ApJS..250....8L

i (AB) 17.8733 [0.0225] C 2020ApJS..250....8L

z (AB) 17.8652 [0.0234] C 2020ApJS..250....8L

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`2MASS J11391654+2544126`	`TIC 165466939`	`Gaia DR2 4017424379029035648`
`SDSS J113916.47+254412.6`	`[VV2010] J113916.5+254412`	`Gaia DR3 4017424379029035648`

References (16 between 1850 and 2026) (Total 16)
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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Data at NED - NASA/IPAC Extragalactic Database : 2MASS J11391654+2544126

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2MASS J11391654+2544126 SDSS J113916.47+254412.6 Gaia DR2 4017424379029035648 Gaia DR3 4017424379029035648

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