3 papers
astro-ph2003
Quasar Elemental Abundances and Host Galaxy Evolution
F. Hamann, M. Dietrich, B. Sabra +1
High redshift quasars mark the locations where massive galaxies are rapidly being assembled and forming stars. There is growing evidence that quasar environments are metal-rich out…
astro-ph2001
High Redshift Quasars and Star Formation History
Matthias Dietrich, Fred Hamann
Quasars are among the most luminous objects in the universe, and they can be studied in detail up to the highest known redshift. Assuming that the gas associated with quasars is cl…
astro-ph1995
Results from Monitoring the Broad-Line Radio Galaxy 3C 390.3
K. M. Leighly, M. Dietrich, E. Waltman +6
During 1995, the broad-line radio galaxy 3C 390.3 is the subject of a multi-wavelength monitoring campaign comprised of ROSAT HRI, IUE, and ground based optical, infrared and radio…