View Full Document

A FAR-ULTRAVIOLET VIEW OF STARBURST GALAXIES



View the full content.
View Full Document
View Full Document

11 views

Unformatted text preview:

arXiv astro ph 0410545 v1 22 Oct 2004 A FAR ULTRAVIOLET VIEW OF STARBURST GALAXIES Claus Leitherer Space Telescope Science Institute 3700 San Martin Drive Baltimore MD 21218 USA leitherer stsci edu Abstract 1 Recent observational and theoretical results on starburst galaxies related to the wavelength regime below 1200 A are discussed The review covers stars dust as well as hot and cold gas This wavelength region follows trends similar to those seen at longer wavelengths with several notable exceptions Even the youngest stellar populations show a turn over in their spectral energy distributions and line blanketing is much more pronounced Furthermore the O VI line allows one to probe gas at higher temperatures than possible with lines at longer wavelengths Molecular hydrogen lines if detected provide a glimpse of the cold phase I cover the crucial wavelength regime below 912 A and the implications of recent attempts to detect the escaping ionizing radiation Background The astrophysically important wavelength region below 1200 A is still relatively unexplored at least at low redshift where restframe observations must be obtained from space Prior to the launch of FUSE Moos et al 2000 farultraviolet far UV studies were limited to bright objects The earliest spectral data for bright stars were obtained by Copernicus Rogerson et al 1973 and ORFEUS Grewing et al 1991 and with the UV spectrometers on the Voyager 1 and 2 spacecraft Longo et al 1989 Voyager 2 also succeeded in recording a far UV spectrum of M33 Keel 1998 HUT Davidsen 1993 was the first instrument sensitive enough to collect spectra of faint galaxies below Ly The mission was flown on two missions and generated a rich database of far UV spectra of actively star forming and starburst galaxies Subsequently FUSE with its superior resolution and sensitivity fully opened the far UV window to starburst galaxies Most of this review deals with results obtained with FUSE and to a smaller degree with HUT 2 Stellar



Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view A FAR-ULTRAVIOLET VIEW OF STARBURST GALAXIES and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view A FAR-ULTRAVIOLET VIEW OF STARBURST GALAXIES and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?