Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-19T08:25:46.139Z Has data issue: false hasContentIssue false
  • English
  • Français

QSO Absorption Lines: Heavy Elements and Lyman-α Clouds

Published online by Cambridge University Press:  19 July 2016

Bruce A. Peterson
Bruce A. Peterson*
Affiliation:
Mount Stromlo and Siding Spring Observatories, The Australian National University, Woden, A. C. T., 2606 Australia

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The absorption lines in QSO spectra may be produced in material surrounding the QSO, in intergalactic clouds and in the interstellar gas of galaxies along the line of sight to the QSO. The intergalactic clouds produce weak Lyα absorption lines. The intervening galaxies produce absorption line systems with heavy element abundances and ionizations similar to the H i clouds in the halo of our galaxy. The material surrounding the QSO produces broad absorption troughs. Evidence suggests a continuity in spatial correlation and heavy element abundances for the Lyα clouds and intervening galaxies.

Type
VI. Quasars as Probes of the Intervening Medium
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 555 - 561
Copyright
Copyright © Reidel 1986 

References

Atwood, B., Baldwin, J. A., and Carswell, R. F. 1985, Astrophys. J., 292, 58.CrossRefGoogle Scholar
Bergeron, J. and Boissé, P. 1984, Astron. and Astrophys., 133, 374.Google Scholar
Bessell, M. S. and Norris, J. 1984, Astrophys. J., 285, 622.Google Scholar
Boksenberg, A., and Sargent, W. L. W. 1975, Astrophys. J., 198, 31.CrossRefGoogle Scholar
Chaffee, F. H. Jr., Foltz, C. B., Röser, H.-J., Weymann, R. J., and Latham, D. W. 1985, Astrophys. J., 292, 362.Google Scholar
Chaffee, F. H. Jr., Foltz, C. B., Bechtold, J., and Weymann, R. J. 1986, (pre-print) Google Scholar
Carney, B. W., and Peterson, R. C. 1981, Astrophys. J., 245, 238.Google Scholar
Chen, J.-S., Morton, D. C., Peterson, B. A., Wright, A. E., and Jauncey, D. L. 1981, Mon. Not. R. astr. Soc., 196, 715.Google Scholar
Morton, D. C., Chen, J.-S., Wright, A. E., Peterson, B. A., and Jauncey, D. L. 1980, Mon. Not. R. astr. Soc., 193, 399.CrossRefGoogle Scholar
Norris, J., Hartwick, F. D. A., and Peterson, B. A. 1983, Astrophys. J., 273, 450.CrossRefGoogle Scholar
Norris, J. and Peterson, B. A. 1986, (in preparation) Google Scholar
Ostriker, J. P., and Ikeuchi, S. 1983, Astrophys. J. Letters, 268, L63.Google Scholar
Peterson, B. A., Morton, D. C., Chen, J.-S., Wright, A. E., and Jauncey, D. L. 1986, Mon. Not. R. astr. Soc., (in press) Google Scholar
Savage, B. D., and de Boer, K. S. 1981, Astrophys. J., 243, 460.Google Scholar
Sargent, W. L. W., Young, P. J., Boksenberg, A., and Tytler, D. 1980, Astrophys. J. Suppl., 42, 41.Google Scholar
Sargent, W. L. W., Young, P. J., and Boksenberg, A. 1982, Astrophys. J., 252, 54.Google Scholar
Sargent, W. L. W., and Boksenberg, A. 1983, “The Lyα Absorption Lines in QSO Spectra” in the 24th Liège International Astrophysical Colloquium, Quasars and Gravitational Lenses, pp. 518–537.Google Scholar
Segal, I. E. 1983, (private communication at the 24th Liège International Astrophysical Colloquium, Quasars and Gravitational Lenses).Google Scholar
Tytler, D. 1984, Bull. American astr. Soc., 16, 1008.Google Scholar
Webb, J. K., Carswell, R. F., and Irwin, M. J. 1984, Bull. American astr. Soc., 16, 733.Google Scholar