XMM and NuSTAR Observations of an Optically Quiescent Quasar

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00560030" target="_blank" >RIV/67985815:_____/22:00560030 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0333333" target="_blank" >https://hdl.handle.net/11104/0333333</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/2041-8213/ac83a0" target="_blank" >10.3847/2041-8213/ac83a0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

XMM and NuSTAR Observations of an Optically Quiescent Quasar

Popis výsledku v původním jazyce

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) approximate to 4.4 x 10(43) erg s(-1), well within the AGN regime, but underluminous relative to its infrared power. It is lightly obscured, with log N (H) [cm(-2)] approximate to 22.

Název v anglickém jazyce

XMM and NuSTAR Observations of an Optically Quiescent Quasar

Popis výsledku anglicky

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) approximate to 4.4 x 10(43) erg s(-1), well within the AGN regime, but underluminous relative to its infrared power. It is lightly obscured, with log N (H) [cm(-2)] approximate to 22.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GA22-22643S" target="_blank" >GA22-22643S: Galaktická gastronomie: Hrášky a Borůvky</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astrophysical Journal Letters

ISSN

2041-8205

e-ISSN

2041-8213

Svazek periodika

934

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

L34

Kód UT WoS článku

000836445000001

EID výsledku v databázi Scopus

2-s2.0-85135622867