Astrophysics and Space Science

, Volume 118, Issue 1–2, pp 505–507 | Cite as

QSOs as probes of the early universe

  • R. W. Hunstead
  • H. S. Murdoch
  • M. Pettini
  • J. C. Blades
Section 5b: Galaxies and Cosmology
  • 21 Downloads

Abstract

The spectrum of the highest redshift QSO 2000−330 (z=3.78) contains four heavy-element absorption systems withzabs>3.0. Interesting features include velocity structure atzabs=3.552 which suggests a cluster origin and a purely low ionization system atzabs=3.1881 typical of a galactic disk sightline.

Keywords

Velocity Structure Early Universe Absorption System High Redshift Galactic Disk 

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References

  1. Hunstead, R. W., Murdoch, H. S., Peterson, B. A., Blades, J. C., Jauncey, D. L., Wright, A. E., Pettini, M., and Savage, A.: 1985,Astrophys. J., submitted.Google Scholar
  2. Murdoch, H. S., Hunstead, R. W., Pettini, M., and Blades, J. C.: 1985,Astrophys. Space Sci. 118, 501 (this issue).Google Scholar
  3. Peterson, B. A., Savage, A., Jauncey, D. L., and Wright, A. E.: 1982,Astrophys. J. 260, L27.Google Scholar
  4. Pettini, M., Hunstead, R. W., Murdoch, H. S., and Blades, J. C.: 1983,Astrophys. J. 273, 436.Google Scholar

Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • R. W. Hunstead
    • 1
  • H. S. Murdoch
    • 1
  • M. Pettini
    • 2
  • J. C. Blades
    • 3
  1. 1.School of PhysicsUniversity of SydneyAustralia
  2. 2.Royal Greenwich ObservatoryHailshamEngland
  3. 3.Space Telescope Science InstituteBaltimoreU.S.A.

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