Compton-thick AGN in the NuSTAR Era VI: The Observed Compton-thick Fraction in the Local Universe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00552426" target="_blank" >RIV/67985815:_____/21:00552426 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3847/1538-4357/ac1c73" target="_blank" >https://doi.org/10.3847/1538-4357/ac1c73</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/1538-4357/ac1c73" target="_blank" >10.3847/1538-4357/ac1c73</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Compton-thick AGN in the NuSTAR Era VI: The Observed Compton-thick Fraction in the Local Universe

Popis výsledku v původním jazyce

We present the analysis of simultaneous Nuclear Spectroscopic Telescope Array (NuSTAR) and XMM-Newton data of eight Compton-thick active galactic nuclei (CT-AGN) candidates selected in the Swift-BAT 100 month catalog. This work is part of an ongoing effort to find and characterize all CT-AGN in the Local (z <= 0.05) Universe. We used two physically motivated models, MYTorus and borus02, to characterize the sources in the sample, finding five of them to be confirmed CT-AGN. These results represent an increase of similar to 19% over the previous NuSTAR-confirmed, BAT-selected CT-AGN at z <= 0.05, bringing the total number to 32. This corresponds to an observed fraction of similar to 8% of all AGN within this volume-limited sample, although it increases to 20% +/- 5% when limiting the sample to z <= 0.01. Out of a sample of 48 CT-AGN candidates, selected using BAT and soft (0.3-10 keV) X-ray data, only 24 are confirmed as CT-AGN with the addition of the NuSTAR data. This highlights the importance of NuSTAR when classifying local obscured AGN. We also note that most of the sources in our full sample of 48 Seyfert 2 galaxies with NuSTAR data have significantly different lines of sight and average torus column densities, favoring a patchy torus scenario.

Název v anglickém jazyce

Compton-thick AGN in the NuSTAR Era VI: The Observed Compton-thick Fraction in the Local Universe

Popis výsledku anglicky

We present the analysis of simultaneous Nuclear Spectroscopic Telescope Array (NuSTAR) and XMM-Newton data of eight Compton-thick active galactic nuclei (CT-AGN) candidates selected in the Swift-BAT 100 month catalog. This work is part of an ongoing effort to find and characterize all CT-AGN in the Local (z <= 0.05) Universe. We used two physically motivated models, MYTorus and borus02, to characterize the sources in the sample, finding five of them to be confirmed CT-AGN. These results represent an increase of similar to 19% over the previous NuSTAR-confirmed, BAT-selected CT-AGN at z <= 0.05, bringing the total number to 32. This corresponds to an observed fraction of similar to 8% of all AGN within this volume-limited sample, although it increases to 20% +/- 5% when limiting the sample to z <= 0.01. Out of a sample of 48 CT-AGN candidates, selected using BAT and soft (0.3-10 keV) X-ray data, only 24 are confirmed as CT-AGN with the addition of the NuSTAR data. This highlights the importance of NuSTAR when classifying local obscured AGN. We also note that most of the sources in our full sample of 48 Seyfert 2 galaxies with NuSTAR data have significantly different lines of sight and average torus column densities, favoring a patchy torus scenario.

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/GJ19-05599Y" target="_blank" >GJ19-05599Y: Sjednocení černých děr napříč hmotností</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Astrophysical Journal

ISSN

0004-637X

e-ISSN

1538-4357

Svazek periodika

922

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

252

Kód UT WoS článku

000725863500001

EID výsledku v databázi Scopus

2-s2.0-85121782067