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The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2

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The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2. / Calhau, João; Sobral, David; Stroe, Andra; Best, Philip; Smail, Ian; Lehmer, Bret; Harrison, Chris; Thomson, Alasdair.

In: Monthly Notices of the Royal Astronomical Society, Vol. 464, No. 1, 01.01.2017, p. 303-311.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Calhau, J, Sobral, D, Stroe, A, Best, P, Smail, I, Lehmer, B, Harrison, C & Thomson, A 2017, 'The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2', Monthly Notices of the Royal Astronomical Society, vol. 464, no. 1, pp. 303-311. https://doi.org/10.1093/mnras/stw2295

APA

Calhau, J., Sobral, D., Stroe, A., Best, P., Smail, I., Lehmer, B., Harrison, C., & Thomson, A. (2017). The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2. Monthly Notices of the Royal Astronomical Society, 464(1), 303-311. https://doi.org/10.1093/mnras/stw2295

Vancouver

Calhau J, Sobral D, Stroe A, Best P, Smail I, Lehmer B et al. The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2. Monthly Notices of the Royal Astronomical Society. 2017 Jan 1;464(1):303-311. https://doi.org/10.1093/mnras/stw2295

Author

Calhau, João ; Sobral, David ; Stroe, Andra ; Best, Philip ; Smail, Ian ; Lehmer, Bret ; Harrison, Chris ; Thomson, Alasdair. / The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2. In: Monthly Notices of the Royal Astronomical Society. 2017 ; Vol. 464, No. 1. pp. 303-311.

Bibtex

@article{4b29f90edc6c4ca7af34bf0ae97d6f9e,
title = "The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2",
abstract = "Understanding galaxy formation and evolution requires studying the interplay between the growth of galaxies and the growth of their black holes across cosmic time. Here we explore a sample of Ha-selected star-forming galaxies from the HiZELS survey and use the wealth of multi-wavelength data in the COSMOS field (X-rays, far-infrared and radio) to study the relative growth rates between typical galaxies and their central supermassive black holes, from z=2.23 to z=0. Typical star-forming galaxies at z~1-2 have black hole accretion rates (BHARs) of 0.001-0.01 Msun/yr and star formation rates (SFRs) of ~10-40 Msun/yr, and thus grow their stellar mass much quicker than their black hole mass (~3.3 orders of magnitude faster). However, ~3% of the sample (the sources detected directly in the X-rays) show a significantly quicker growth of the black hole mass (up to 1.5 orders of magnitude quicker growth than the typical sources). BHARs fall from z=2.23 to z=0, with the decline resembling that of star formation rate density or the typical SFR. We find that the average black hole to galaxy growth (BHAR/SFR) is approximately constant for star-forming galaxies in the last 11 Gyrs. The relatively constant BHAR/SFR suggests that these two quantities evolve equivalently through cosmic time and with practically no delay between the two.",
keywords = "astro-ph.GA",
author = "Jo{\~a}o Calhau and David Sobral and Andra Stroe and Philip Best and Ian Smail and Bret Lehmer and Chris Harrison and Alasdair Thomson",
year = "2017",
month = jan,
day = "1",
doi = "10.1093/mnras/stw2295",
language = "English",
volume = "464",
pages = "303--311",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "1",

}

RIS

TY - JOUR

T1 - The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2

AU - Calhau, João

AU - Sobral, David

AU - Stroe, Andra

AU - Best, Philip

AU - Smail, Ian

AU - Lehmer, Bret

AU - Harrison, Chris

AU - Thomson, Alasdair

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Understanding galaxy formation and evolution requires studying the interplay between the growth of galaxies and the growth of their black holes across cosmic time. Here we explore a sample of Ha-selected star-forming galaxies from the HiZELS survey and use the wealth of multi-wavelength data in the COSMOS field (X-rays, far-infrared and radio) to study the relative growth rates between typical galaxies and their central supermassive black holes, from z=2.23 to z=0. Typical star-forming galaxies at z~1-2 have black hole accretion rates (BHARs) of 0.001-0.01 Msun/yr and star formation rates (SFRs) of ~10-40 Msun/yr, and thus grow their stellar mass much quicker than their black hole mass (~3.3 orders of magnitude faster). However, ~3% of the sample (the sources detected directly in the X-rays) show a significantly quicker growth of the black hole mass (up to 1.5 orders of magnitude quicker growth than the typical sources). BHARs fall from z=2.23 to z=0, with the decline resembling that of star formation rate density or the typical SFR. We find that the average black hole to galaxy growth (BHAR/SFR) is approximately constant for star-forming galaxies in the last 11 Gyrs. The relatively constant BHAR/SFR suggests that these two quantities evolve equivalently through cosmic time and with practically no delay between the two.

AB - Understanding galaxy formation and evolution requires studying the interplay between the growth of galaxies and the growth of their black holes across cosmic time. Here we explore a sample of Ha-selected star-forming galaxies from the HiZELS survey and use the wealth of multi-wavelength data in the COSMOS field (X-rays, far-infrared and radio) to study the relative growth rates between typical galaxies and their central supermassive black holes, from z=2.23 to z=0. Typical star-forming galaxies at z~1-2 have black hole accretion rates (BHARs) of 0.001-0.01 Msun/yr and star formation rates (SFRs) of ~10-40 Msun/yr, and thus grow their stellar mass much quicker than their black hole mass (~3.3 orders of magnitude faster). However, ~3% of the sample (the sources detected directly in the X-rays) show a significantly quicker growth of the black hole mass (up to 1.5 orders of magnitude quicker growth than the typical sources). BHARs fall from z=2.23 to z=0, with the decline resembling that of star formation rate density or the typical SFR. We find that the average black hole to galaxy growth (BHAR/SFR) is approximately constant for star-forming galaxies in the last 11 Gyrs. The relatively constant BHAR/SFR suggests that these two quantities evolve equivalently through cosmic time and with practically no delay between the two.

KW - astro-ph.GA

U2 - 10.1093/mnras/stw2295

DO - 10.1093/mnras/stw2295

M3 - Journal article

VL - 464

SP - 303

EP - 311

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 1

ER -