Abstract
Among the many spectral lines falling in the ultraviolet are the resonance doublets of the highly ionized species O VI, N V, C IV, and Si IV. By using both space-based UV observations and ground-based optical observations, these lines can be used to trace diffuse astrophysical plasma over a large fraction of the age of the Universe. In this paper we discuss observations of these absorption lines in damped Lyman-α systems at z≈2–3, using the UVES spectrograph on the VLT in Chile.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ballester, P., et al.: The Messenger 101, 31 (2000)
Bouché, N., et al.: Mon. Not. R. Astron. Soc. 378, 525 (2007)
Bowen, D., et al.: Astrophys. J. Suppl. Ser. (2007, in press), astro-ph/0711.0005
Davé, R., et al.: Astrophys. J. 552, 473 (2001)
Dekker, H., et al.: SPIE 4008, 534 (2000)
Fangano, A.P.M., et al.: Mon. Not. R. Astron. Soc. 381, 469 (2007)
Fox, A.J., et al.: Astron. Astrophys. 465, 171 (2007a)
Fox, A.J., et al.: Astron. Astrophys. 473, 791 (2007b)
Fox, A.J., et al.: Astrophys. J. 668, L15 (2007c)
Haehnelt, M.G., et al.: Astrophys. J. 495, 647 (1998)
Heckman, T.M., et al.: Astrophys. J. 554, 1021 (2001)
Howk, J.C., et al.: Astrophys. J. 569, 214 (2002)
Kang, H., Ryu, D., Cen, R., Song, D.: Astrophys. J. 620, 21 (2005)
Kawata, D., Rauch, M.: Astrophys. J. 663, 38 (2007)
Ledoux, C., et al.: Astron. Astrophys. 457, 71 (2006)
Morton, D.C.: Astrophys. J. Suppl. Ser. 149, 205 (2003)
Oppenheimer, B., Davé, R.: Mon. Not. R. Astron. Soc. 373, 1265 (2006)
Savage, B.D., et al.: Astrophys. J. Suppl. Ser. 146, 125 (2003)
Sembach, K.R., et al.: Astrophys. J. Suppl. Ser. 146, 165 (2003)
Sutherland, R.S., Dopita, M.A.: Astrophys. J Suppl. Ser. 88, 253 (1993)
Tripp, T., et al.: Astrophys. J. Suppl. Ser. (2007, submitted), astro-ph/0706.1214 (2007)
Wolfe, A.M., Prochaska, J.X.: Astrophys. J. 545, 591 (2000)
Wolfe, A.M., et al.: Annu. Rev. Astron. Astrophys. 43, 861 (2005)
Author information
Authors and Affiliations
Corresponding author
Additional information
P. Petitjean is also at LERMA, Observatoire de Paris.
Rights and permissions
About this article
Cite this article
Fox, A.J., Petitjean, P., Ledoux, C. et al. Studying hot gas using the ultraviolet: High ions in galactic halos. Astrophys Space Sci 320, 27–30 (2009). https://doi.org/10.1007/s10509-007-9722-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10509-007-9722-2