A first step toward constraining supermassive black-hole growth

Marianne Vestergaard

doi:10.1016/j.newar.2006.06.039

A first step toward constraining supermassive black-hole growth

Marianne Vestergaard^*

^*Corresponding author for this work

4 Citations (Scopus)

Abstract

Updated scaling relations, useful for estimating black hole masses M_BH of large samples of distant AGNs and quasars using a single spectrum, are presented. This is timely given the recent improvements made to the reverberation mapping mass determinations and the empirical radius-luminosity relationships on which the scaling relations rely. The redshift distribution of mass estimates of different quasar samples, based on these scaling relations, shows that luminous, distant quasars have very massive black holes M_BH ≳ 10⁹M_ȯ, even at z ≳ 4. Also, there is a limit to how massive and luminous black holes can become: M_BH ≲ 10¹⁰M_ȯ and L_bol < 10⁴⁸ erg s^-1. Preliminary mass functions of active black holes out to z ≈ 4 are presented.

Original language	English
Journal	New Astronomy Reviews
Volume	50
Issue number	9-10
Pages (from-to)	817-820
Number of pages	4
ISSN	1387-6473
DOIs	https://doi.org/10.1016/j.newar.2006.06.039
Publication status	Published - 1 Nov 2006
Externally published	Yes

Keywords

Black hole mass
Black hole physics
Quasars

Access to Document

10.1016/j.newar.2006.06.039

Cite this

@article{54cab1e509924310bc9b174f029b6ca0,

title = "A first step toward constraining supermassive black-hole growth",

abstract = "Updated scaling relations, useful for estimating black hole masses MBH of large samples of distant AGNs and quasars using a single spectrum, are presented. This is timely given the recent improvements made to the reverberation mapping mass determinations and the empirical radius-luminosity relationships on which the scaling relations rely. The redshift distribution of mass estimates of different quasar samples, based on these scaling relations, shows that luminous, distant quasars have very massive black holes MBH ≳ 109Mȯ, even at z ≳ 4. Also, there is a limit to how massive and luminous black holes can become: MBH ≲ 1010Mȯ and Lbol < 1048 erg s-1. Preliminary mass functions of active black holes out to z ≈ 4 are presented.",

keywords = "Black hole mass, Black hole physics, Quasars",

author = "Marianne Vestergaard",

year = "2006",

month = nov,

day = "1",

doi = "10.1016/j.newar.2006.06.039",

language = "English",

volume = "50",

pages = "817--820",

journal = "New Astronomy Reviews",

issn = "1387-6473",

publisher = "Elsevier BV * North-Holland",

number = "9-10",

}

TY - JOUR

T1 - A first step toward constraining supermassive black-hole growth

AU - Vestergaard, Marianne

PY - 2006/11/1

Y1 - 2006/11/1

N2 - Updated scaling relations, useful for estimating black hole masses MBH of large samples of distant AGNs and quasars using a single spectrum, are presented. This is timely given the recent improvements made to the reverberation mapping mass determinations and the empirical radius-luminosity relationships on which the scaling relations rely. The redshift distribution of mass estimates of different quasar samples, based on these scaling relations, shows that luminous, distant quasars have very massive black holes MBH ≳ 109Mȯ, even at z ≳ 4. Also, there is a limit to how massive and luminous black holes can become: MBH ≲ 1010Mȯ and Lbol < 1048 erg s-1. Preliminary mass functions of active black holes out to z ≈ 4 are presented.

AB - Updated scaling relations, useful for estimating black hole masses MBH of large samples of distant AGNs and quasars using a single spectrum, are presented. This is timely given the recent improvements made to the reverberation mapping mass determinations and the empirical radius-luminosity relationships on which the scaling relations rely. The redshift distribution of mass estimates of different quasar samples, based on these scaling relations, shows that luminous, distant quasars have very massive black holes MBH ≳ 109Mȯ, even at z ≳ 4. Also, there is a limit to how massive and luminous black holes can become: MBH ≲ 1010Mȯ and Lbol < 1048 erg s-1. Preliminary mass functions of active black holes out to z ≈ 4 are presented.

KW - Black hole mass

KW - Black hole physics

KW - Quasars

UR - http://www.scopus.com/inward/record.url?scp=33749645151&partnerID=8YFLogxK

U2 - 10.1016/j.newar.2006.06.039

DO - 10.1016/j.newar.2006.06.039

M3 - Review

AN - SCOPUS:33749645151

SN - 1387-6473

VL - 50

SP - 817

EP - 820

JO - New Astronomy Reviews

JF - New Astronomy Reviews

IS - 9-10

ER -

A first step toward constraining supermassive black-hole growth

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this