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Deep sub-mm Surveys: High-z ULIRGs and the Formation of Spheroids

from Part 2 - The Epoch of Bulge Formation

Published online by Cambridge University Press:  10 November 2010

By
S. Lilly ,
S.A. Eales ,
W.K. Gear ,
T.M. Webb ,
J.R. Bond  and
L. Dunne
Edited by
C. Marcella Carollo ,
Henry C. Ferguson  and
Rosemary F. G. Wyse
S. Lilly
Affiliation:
Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada
S.A. Eales
Affiliation:
Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK
W.K. Gear
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK
T.M. Webb
Affiliation:
Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada
J.R. Bond
Affiliation:
Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada
L. Dunne
Affiliation:
Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK
C. Marcella Carollo
Affiliation:
Columbia University, New York
Henry C. Ferguson
Affiliation:
Space Telescope Science Institute, Baltimore
Rosemary F. G. Wyse
Affiliation:
The Johns Hopkins University
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Summary

Deep surveys of the sky at millimeter wavelengths have revealed a population of ultra-luminous infrared galaxies (ULIRGs) at high redshifts. These appear similar to local objects of similar luminosities (such as Arp220) but are much more ‘important’ at high redshift than at low resdhift, in the sense that they represent a much larger fraction of the total luminous output of the distant Universe than they do locally. In fact the ULIRGs at high redshift are producing a significant fraction (≥ 15%) of the total luminous output of the Universe averaged over all wavelengths and all epochs. The high-z ULIRGs could plausibly be responsible for producing the metal-rich spheroidal components of galaxies, including the bulges of spiral galaxies. In this case we would infer from the redshift distribution of the sources that much of this activity is probably happening relatively recently at z ≤ 2.

Introduction

Despite a great deal of progress in recent years, there still remain major uncertainties in our observational picture of the formation and evolution of galaxies in the high redshift Universe. Not least, the relationship between the star formation activity seen at high redshift and the present-day morphological components of the galaxy population, including the bulges that are the subject of this conference, remains unclear. The origin of the stars in the metal-rich spheroidal components of present-day galaxies, which constitute a half to two-thirds of all stars in the Universe (see Fukugita et al. 1998), is thus an unsolved observational question.

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The Formation of Galactic Bulges , pp. 26 - 37
Publisher: Cambridge University Press
Print publication year: 2000

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  • Deep sub-mm Surveys: High-z ULIRGs and the Formation of Spheroids
    • By S. Lilly, Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, S.A. Eales, Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK, W.K. Gear, Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK, T.M. Webb, Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, J.R. Bond, Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, L. Dunne, Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK
  • Edited by C. Marcella Carollo, Columbia University, New York, Henry C. Ferguson, Space Telescope Science Institute, Baltimore, Rosemary F. G. Wyse, The Johns Hopkins University
  • Book: The Formation of Galactic Bulges
  • Online publication: 10 November 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511564611.005
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  • Deep sub-mm Surveys: High-z ULIRGs and the Formation of Spheroids
    • By S. Lilly, Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, S.A. Eales, Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK, W.K. Gear, Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK, T.M. Webb, Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, J.R. Bond, Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, L. Dunne, Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK
  • Edited by C. Marcella Carollo, Columbia University, New York, Henry C. Ferguson, Space Telescope Science Institute, Baltimore, Rosemary F. G. Wyse, The Johns Hopkins University
  • Book: The Formation of Galactic Bulges
  • Online publication: 10 November 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511564611.005
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Deep sub-mm Surveys: High-z ULIRGs and the Formation of Spheroids
    • By S. Lilly, Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, S.A. Eales, Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK, W.K. Gear, Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK, T.M. Webb, Department of Astronomy, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, J.R. Bond, Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8, Canada, L. Dunne, Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff CF2 3YB, UK
  • Edited by C. Marcella Carollo, Columbia University, New York, Henry C. Ferguson, Space Telescope Science Institute, Baltimore, Rosemary F. G. Wyse, The Johns Hopkins University
  • Book: The Formation of Galactic Bulges
  • Online publication: 10 November 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511564611.005
Available formats
×