東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

The accretion and obscured growth of...

Boorman, Peter.

Linked to FindBook

Google Book

Amazon

博客來

The accretion and obscured growth of supermassive black holes = first constraints on the local heavily obscured AGN fraction with NuSTAR /

Record Type:	Electronic resources : Monograph/item
Title/Author:	The accretion and obscured growth of supermassive black holes/ by Peter Boorman.
Reminder of title:	first constraints on the local heavily obscured AGN fraction with NuSTAR /
Author:	Boorman, Peter.
Published:	Cham :Springer International Publishing : : 2021.,
Description:	xxiv, 311 p. :ill., digital ;24 cm.
[NT 15003449]:	Introduction -- IC 3639 - A New Bona Fide Compton-thick AGN Unveiled by NuSTAR -- An Iwasawa-Taniguchi Effect for Compton-thick Active Galactic Nuclei -- The NuSTAR Local AGN NH Distribution Survey: Prospects for Mitigating Obscuration Bias in Local AGN Selection -- The NuLANDS NH Distribution -- Summary, Conclusions & Outlook.
Contained By:	Springer Nature eBook
Subject:	Active galactic nuclei. -
Online resource:	https://doi.org/10.1007/978-3-030-60361-8
ISBN:	9783030603618

The accretion and obscured growth of supermassive black holes = first constraints on the local heavily obscured AGN fraction with NuSTAR /
Boorman, Peter.

The accretion and obscured growth of supermassive black holesfirst constraints on the local heavily obscured AGN fraction with NuSTAR /[electronic resource] :by Peter Boorman. - Cham :Springer International Publishing :2021. - xxiv, 311 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- IC 3639 - A New Bona Fide Compton-thick AGN Unveiled by NuSTAR -- An Iwasawa-Taniguchi Effect for Compton-thick Active Galactic Nuclei -- The NuSTAR Local AGN NH Distribution Survey: Prospects for Mitigating Obscuration Bias in Local AGN Selection -- The NuLANDS NH Distribution -- Summary, Conclusions & Outlook.

This thesis describes the application of state-of-the-art high-energy X-ray studies to the astronomical quest for understanding obscured active galactic nuclei (AGN) These AGN are supermassive black holes growing by accretion of matter located in the nuclei of galaxies. The material that feeds these black holes also obscures them from view, rendering them challenging to study. It is possible to study them by effectively 'X-raying' galactic nuclei to peer through these obscuring veils. Beginning with the proof-of-concept application of novel X-ray Monte Carlo codes to the Nuclear Spectroscopic Telescope ARray (NuSTAR) spectrum of a known heavily obscured AGN, the thesis establishes the relevant parameters that characterise the AGN spectrum and central black hole growth rate. Next the largest sample of known heavily obscured AGN is compiled, finding the strength of a prominent iron spectral feature to weaken with AGN power. This is puzzling, and suggests that there may be more hidden AGN than previously thought. Finally by combining an all-sky infrared selection with NuSTAR follow-up, new heavily obscured AGN are identified. Obscuration emits infrared radiation, meaning that the infrared-selected AGN catalogue should be representative of the underlying AGN population. The absence of such representative catalogues has continually plagued cosmological studies, and the resultant obscured AGN fraction will be strongly constraining for AGN models.

ISBN: 9783030603618

Standard No.: 10.1007/978-3-030-60361-8doiSubjects--Topical Terms:

2148949
Active galactic nuclei.

LC Class. No.: QB858.3

Dewey Class. No.: 523.112

The accretion and obscured growth of supermassive black holes = first constraints on the local heavily obscured AGN fraction with NuSTAR /
LDR:02916nmm a2200349 a 4500 001 2237055
003 DE-He213
005 20201202143413.0
006 m d
007 cr nn 008maaau
008 211111s2021 gw s 0 eng d
020 $a 9783030603618 $q (electronic bk.)
020 $a 9783030603601 $q (paper)
024 7 $a 10.1007/978-3-030-60361-8 $2 doi
035 $a 978-3-030-60361-8
040 $a GP $c GP
041 0 $a eng
050 4 $a QB858.3
072 7 $a PHR $2 bicssc
072 7 $a SCI061000 $2 bisacsh
072 7 $a PHDV $2 thema
072 7 $a PHR $2 thema
082 0 4 $a 523.112 $2 23
090 $a QB858.3 $b .B724 2021
100 1 $a Boorman, Peter. $3 3488972
245 1 4 $a The accretion and obscured growth of supermassive black holes $h [electronic resource] : $b first constraints on the local heavily obscured AGN fraction with NuSTAR / $c by Peter Boorman.
260 $a Cham : $b Springer International Publishing : $b Imprint: Springer, $c 2021.
300 $a xxiv, 311 p. : $b ill., digital ; $c 24 cm.
490 1 $a Springer theses, $x 2190-5053
505 0 $a Introduction -- IC 3639 - A New Bona Fide Compton-thick AGN Unveiled by NuSTAR -- An Iwasawa-Taniguchi Effect for Compton-thick Active Galactic Nuclei -- The NuSTAR Local AGN NH Distribution Survey: Prospects for Mitigating Obscuration Bias in Local AGN Selection -- The NuLANDS NH Distribution -- Summary, Conclusions & Outlook.
520 $a This thesis describes the application of state-of-the-art high-energy X-ray studies to the astronomical quest for understanding obscured active galactic nuclei (AGN) These AGN are supermassive black holes growing by accretion of matter located in the nuclei of galaxies. The material that feeds these black holes also obscures them from view, rendering them challenging to study. It is possible to study them by effectively 'X-raying' galactic nuclei to peer through these obscuring veils. Beginning with the proof-of-concept application of novel X-ray Monte Carlo codes to the Nuclear Spectroscopic Telescope ARray (NuSTAR) spectrum of a known heavily obscured AGN, the thesis establishes the relevant parameters that characterise the AGN spectrum and central black hole growth rate. Next the largest sample of known heavily obscured AGN is compiled, finding the strength of a prominent iron spectral feature to weaken with AGN power. This is puzzling, and suggests that there may be more hidden AGN than previously thought. Finally by combining an all-sky infrared selection with NuSTAR follow-up, new heavily obscured AGN are identified. Obscuration emits infrared radiation, meaning that the infrared-selected AGN catalogue should be representative of the underlying AGN population. The absence of such representative catalogues has continually plagued cosmological studies, and the resultant obscured AGN fraction will be strongly constraining for AGN models.
650 0 $a Active galactic nuclei. $3 2148949
650 0 $a Black holes (Astronomy) $3 546291
650 1 4 $a Classical and Quantum Gravitation, Relativity Theory. $3 1067066
650 2 4 $a Astronomy, Observations and Techniques. $3 1066822
710 2 $a SpringerLink (Online service) $3 836513
773 0 $t Springer Nature eBook
830 0 $a Springer theses. $3 1314442
856 4 0 $u https://doi.org/10.1007/978-3-030-60361-8
950 $a Physics and Astronomy (SpringerNature-11651)