Early Growth and Efficient Accretion of Massive Black Holes at High Redshift

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Early Growth and Efficient Accretion of Massive Black Holes at High Redshift. / Vestergaard, Marianne.

I: The Astrophysical Journal, Bind 601, Nr. 2, 676, 19.09.2003.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Vestergaard, M 2003, 'Early Growth and Efficient Accretion of Massive Black Holes at High Redshift', The Astrophysical Journal, bind 601, nr. 2, 676. https://doi.org/10.1086/379758

APA

Vestergaard, M. (2003). Early Growth and Efficient Accretion of Massive Black Holes at High Redshift. The Astrophysical Journal, 601(2), [676]. https://doi.org/10.1086/379758

Vancouver

Vestergaard M. Early Growth and Efficient Accretion of Massive Black Holes at High Redshift. The Astrophysical Journal. 2003 sep. 19;601(2). 676. https://doi.org/10.1086/379758

Author

Vestergaard, Marianne. / Early Growth and Efficient Accretion of Massive Black Holes at High Redshift. I: The Astrophysical Journal. 2003 ; Bind 601, Nr. 2.

Bibtex

@article{d459c721107b43bcb62d344bea100634,
title = "Early Growth and Efficient Accretion of Massive Black Holes at High Redshift",
abstract = "Black-hole masses of the highest redshift quasars (4 ~ 4 quasars are very massive (>~ 10^9 solar masses). It is argued that the mass estimates of the high-z quasars are not subject to larger uncertainties than those for nearby quasars. Specifically, the large masses are not overestimates and the lack of similarly large black-hole masses in the nearby Universe does not rule out their existence at high-z. However, AGN host galaxies do not typically appear fully formed or evolved at these early epochs. This supports scenarios in which black holes build up mass very fast in a radiatively inefficient (or obscured) phase relative to the stars in their galaxies. Additionally, upper envelopes of black-hole mass of approximately 10^{10} solar masses and bolometric luminosity of ~ 10^{48} erg/s are observed at all redshifts.",
keywords = "astro-ph",
author = "Marianne Vestergaard",
year = "2003",
month = sep,
day = "19",
doi = "10.1086/379758",
language = "English",
volume = "601",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "2",

}

RIS

TY - JOUR

T1 - Early Growth and Efficient Accretion of Massive Black Holes at High Redshift

AU - Vestergaard, Marianne

PY - 2003/9/19

Y1 - 2003/9/19

N2 - Black-hole masses of the highest redshift quasars (4 ~ 4 quasars are very massive (>~ 10^9 solar masses). It is argued that the mass estimates of the high-z quasars are not subject to larger uncertainties than those for nearby quasars. Specifically, the large masses are not overestimates and the lack of similarly large black-hole masses in the nearby Universe does not rule out their existence at high-z. However, AGN host galaxies do not typically appear fully formed or evolved at these early epochs. This supports scenarios in which black holes build up mass very fast in a radiatively inefficient (or obscured) phase relative to the stars in their galaxies. Additionally, upper envelopes of black-hole mass of approximately 10^{10} solar masses and bolometric luminosity of ~ 10^{48} erg/s are observed at all redshifts.

AB - Black-hole masses of the highest redshift quasars (4 ~ 4 quasars are very massive (>~ 10^9 solar masses). It is argued that the mass estimates of the high-z quasars are not subject to larger uncertainties than those for nearby quasars. Specifically, the large masses are not overestimates and the lack of similarly large black-hole masses in the nearby Universe does not rule out their existence at high-z. However, AGN host galaxies do not typically appear fully formed or evolved at these early epochs. This supports scenarios in which black holes build up mass very fast in a radiatively inefficient (or obscured) phase relative to the stars in their galaxies. Additionally, upper envelopes of black-hole mass of approximately 10^{10} solar masses and bolometric luminosity of ~ 10^{48} erg/s are observed at all redshifts.

KW - astro-ph

U2 - 10.1086/379758

DO - 10.1086/379758

M3 - Journal article

VL - 601

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 676

ER -

ID: 123368895