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Rapidly growing bla...
Rapidly growing black holes and host galaxies in the distant Universe from the Herschel Radio Galaxy Evolution Project
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- Drouart, Guillaume, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- De Breuck, C. (author)
- European Southern Observatory (ESO)
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- Vernet, J. (author)
- European Southern Observatory (ESO)
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- Seymour, N. (author)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Lehnert, M. (author)
- Institut d 'Astrophysique de Paris
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- Barthel, P. D. (author)
- Rijksuniversiteit Groningen,University of Groningen
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- Bauer, F. E. (author)
- Space Science Institute,Pontificia Universidad Catolica de Chile
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- Ibar, E. (author)
- Universidad de Valparaíso,University of Valparaíso,Pontificia Universidad Catolica de Chile
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- Galametz, A. (author)
- Istituto nazionale di astrofisica (INAF)
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- Haas, M. (author)
- Ruhr-Universität Bochum
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- Hatch, N. (author)
- University Of Nottingham
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- Mullaney, J. R. (author)
- Durham University
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- Nesvadba, N. (author)
- Université Paris-Sud XI,University of Paris-Sud XI
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- Rocca-Volmerange, B. (author)
- Institut d 'Astrophysique de Paris
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- Rottgering, H. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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Stern, D. (author)
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- Wylezalek, D. (author)
- European Southern Observatory (ESO)
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(creator_code:org_t)
- 2014-06-11
- 2014
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 566
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Abstract
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- We present results from a comprehensive survey of 70 radio galaxies at redshifts 1 10(12) L-circle dot) or hyper-luminous (L-tot(IR) > 10(13) L-circle dot) infrared galaxies. We fit the infrared SEDs with a set of empirical templates which represent dust heated by a variety of starbursts (SB) and by an active galactic nucleus (AGN). We find that the SEDs of radio galaxies require the dust to be heated by both AGN and SB, but the luminosities of these two components are not strongly correlated. Assuming empirical relations and simple physical assumptions, we calculate the star formation rate (SFR), the black hole mass accretion rate ((M) over dot(BH)), and the black hole mass (M-BH) for each radio galaxy. We find that the host galaxies and their black holes are growing extremely rapidly, having SFR approximate to 100-5000 M-circle dot yr(-1) and. (M) over dot(BH) approximate to 1-100 M(circle dot)yr(-1). The mean specific SFRs (sSFR) of radio galaxies at z > 2 : 5 are higher than the sSFR of typical star forming galaxies over the same redshift range, but are similar or perhaps lower than the galaxy population for radio galaxies at z
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Drouart, Guillau ...
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De Breuck, C.
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Vernet, J.
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Seymour, N.
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Lehnert, M.
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Barthel, P. D.
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show more...
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Bauer, F. E.
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Ibar, E.
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Galametz, A.
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Haas, M.
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Hatch, N.
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Mullaney, J. R.
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Nesvadba, N.
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Rocca-Volmerange ...
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Rottgering, H.
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Stern, D.
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Wylezalek, D.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Astronomy and As ...
- By the university
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Chalmers University of Technology