Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-27T00:29:02.872Z Has data issue: false hasContentIssue false
  • English
  • Français

Evolution of Metals and Stars in Damped Lyman-Alpha Galaxies

Published online by Cambridge University Press:  30 March 2016

Varsha P. Kulkarni
Varsha P. Kulkarni*
Affiliation:
University of South Carolina, Dept. of Physics and Astronomy, Columbia, SC 29208, U.S.A.

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.

Damped Lyman-alpha absorbers in quasar spectra provide a unique tool to directly measure the abundances of elements in galaxies at red-shifts 0 < z < 5, and hence probe the chemical evolution of galaxies over > 90% of the age of the Universe. Since cosmic chemical evolution models predict the global metallicity of galaxies to increase with time, it is of great interest to determine whether DLAs actually show such a trend. We discuss statistical analysis of existing DLA Zn data to examine the metallicity-redshift relation, and a comparison of the observed data with models of cosmic chemical evolution. We also describe efforts to expand the DLA abundance sample at z < 1.5, where the current data are particularly sparse. Finally, we discuss emission-line imaging studies of the absorber galaxies and compare constraints on their star formation rates with models based on the global star formation history.

Type
I. Joint Discussions
Information
Highlights of Astronomy , Volume 13 , 2005 , pp. 566 - 571
Copyright
Copyright © Astronomical Society of Pacific 2005

References

Bouché, N., Lowenthal, J. D., Charlton, J. C., Bershady, M. A., Churchill, C. W., & Steidel, C. C. 2001, ApJ, 550, 585 Google Scholar
Bunker, A. J., Warren, S. J., Clements, D. L., Williger, G. M., & Hewitt, P. C. 1999. MNRAS, 309, 875 Google Scholar
Khare, P. A., Kulkarni, V. P., Lauroesch, J. T., York, D. G., Crotts, A. P. S., & Nakamura, O. 2004, ApJ, 616, 86 Google Scholar
Kulkarni, V. P., Huang, K., Green, R. F., Bechtold, J., Welty, D. E., & York, D. G. 1996, MNRAS, 279, 197 Google Scholar
Kulkarni, V. P., Fall, S. M. and Truran, J. W. 1997, ApJ, 484, L7 CrossRefGoogle Scholar
Kulkarni, V. P., Hill, J. M., Schneider, G., Weymann, R. J., Storrie-Lombardi, L. J., Rieke, M. J., Thompson, R. I., & Jannuzi, B. 2000, ApJ, 536, 36 Google Scholar
Kulkarni, V. P., Hill, J. M., Schneider, G., Weymann, R. J., Storrie-Lombardi, L. J., Rieke, M. J., Thompson, R. I., & Jannuzi, B. 2001, ApJ, 551, 37 Google Scholar
Kulkarni, V. P., & Fall, S. M. 2002, ApJ, 580, 732 CrossRefGoogle Scholar
Kulkarni, V. P., Palunas, P., Woodgate, B., & York, D. G. 2003, to be submittedGoogle Scholar
Lilly, S. J., Le Fevre, O., Hammer, F., & Crampton, D. 1996, ApJ, 460, L1 Google Scholar
Lu, L., Sargent, W. L. W., Barlow, T. A., Churchill, C. W., & Vogt, S. S. 1996, ApJS, 107, 475 Google Scholar
Madau, P., Ferguson, H. C., Dickinson, M. E., Giavalisco, M., Steidel, C. C., & Fruchter, A. 1996, MNRAS, 283, 1388 Google Scholar
Madau, P., Pozzetti, L., & Dickinson, M. 1998, ApJ, 498, 106 CrossRefGoogle Scholar
Malaney, R. A., & Chaboyer, B. 1996, ApJ, 462, 57 Google Scholar
Meyer, D. M., Welty, D. E., & York, D. G. 1989, ApJ, 343, L37 Google Scholar
Pei, Y. C., & Fall, S. M. 1995, ApJ, 454, 69 CrossRefGoogle Scholar
Pei, Y. C., Fall, S. M., & Hauser, M. G. 1999, ApJ, 522, 604 Google Scholar
Pettini, M., Smith, L. J., Hunstead, R. W., & King, D. L. 1994, ApJ, 426, 79 Google Scholar
Pettini, M. Smith, L. J., King, D. L., & Hunstead, R. W. 1997, ApJ, 486, 665 Google Scholar
Pettini, M., Ellison, S. L., Steidel, C. C., & Bowen, D. V. 1999, ApJ, 510, 576 CrossRefGoogle Scholar
Prochaska, J. X., & Wolfe, A. M. 1999, ApJS, 121, 369 Google Scholar
Prochaska, J. X., & Wolfe, A. M. 2000, ApJ, 533, L5 CrossRefGoogle Scholar
Prochaska, J. X. et al. 2001, ApJS, 137, 21 Google Scholar
Prochaska, J. X., & Wolfe, A. M. 2002, ApJ, 566, 68 Google Scholar
Prochaska, J. X. et al. 2003, ApJ, 595, L9 Google Scholar
Savaglio, S. 2000, IAUS, 204, E24 Google Scholar
Somerville, R. S., Primack, J. R., & Faber, S. M. 2001, MNRAS, 320, 504 Google Scholar
Tissera, P. B., Lambas, D. G., Mosconi, M. B., & Cora, S. 2001, ApJ, 557, 527 Google Scholar
Vladilo, G., Bonifacio, P., Centurión, M., & Molaro, P. 2000, ApJ, 543, 24 Google Scholar
Wolfe, A. M. et al. 1995, ApJ, 454, 698 Google Scholar
Wolfe, A. M., Gawiser, E., & Prochaska, J. X. 2003, ApJ, 593, 235 Google Scholar