2022ApJ...934L..34G

Query : 2022ApJ...934L..34G

2022ApJ...934L..34G - Astrophys. J., 934, L34 (2022/August-1)

XMM and NuSTAR Observations of an Optically Quiescent Quasar.

GREENWELL C., GANDHI P., LANSBURY G., BOORMAN P., MAINIERI V. and STERN D.

Abstract (from CDS):

Optically quiescent quasars (OQQs) represent a recently systematized class of infrared-luminous active galactic nuclei (AGNs) that have galaxy-like optical continua. They may represent an interesting, brief phase in the AGN life cycle, e.g., either cocooned within high-covering-factor media or indicative of recent triggering, though their nature remains unclear. Here, we present the first targeted simultaneous X-ray observations of an OQQ, our previously identified prototype, SDSS J075139.06+402811.2 at z = 0.587. The source is significantly detected over 0.5-16 keV with XMM-Newton and NuSTAR, unambiguously confirming the presence of current accretion activity. Spectral modeling yields an intrinsic luminosity L_2-10 keV_ ≈ 4.4 × 1043 erg s–1, well within the AGN regime, but underluminous relative to its infrared power. It is lightly obscured, with log NH [cm–2] ≈ 22.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Active galactic nuclei - X-ray active galactic nuclei - X-ray astronomy - Surveys - Infrared galaxies

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 SDSS J075139.06+402810.9 QSO 07 51 39.07176 +40 28 10.9524           ~ 3 0

Query : 2022ApJ...934L..34G

Basic data :
SDSS J075139.06+402810.9 -- Quasar
Other object types: otypes_help 		QSO (2021MNRAS), Opt (SDSS)
ICRS coord. (ep=J2000) : 		07 51 39.07176 +40 28 10.9524 (Optical) [ ] C 2015ApJS..219...12A
FK4 coord. (ep=B1950 eq=1950) : 		07 48 14.65515 +40 35 53.4390 [ ]
Gal coord. (ep=J2000) : 		179.36149636 +28.15109948 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 129387 [~] / z(~) 0.587 [~] / cz 175978 [~]
   D 2021MNRAS.503L..80G
Fluxes (5) :
u (AB) 22.666 [0.485] D 2015ApJS..219...12A
g (AB) 22.225 [0.152] D 2015ApJS..219...12A
r (AB) 20.714 [0.054] C 2015ApJS..219...12A
i (AB) 19.572 [0.032] C 2015ApJS..219...12A
z (AB) 19.100 [0.087] C 2015ApJS..219...12A
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Identifiers (1) :
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SDSS J075139.06+402810.9

References (3 between 1850 and 2026) (Total 3)
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 : SDSS J075139.06+402810.9

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SDSS J075139.06+402810.9

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