Conference Paper (25)
21.
Conference Paper
The quasar 1821+643 during the ROSAT survey. In: X-Ray Emission from Active Galactic Nuclei and the Cosmic X-Ray Background: Proceedings of a Conference held at the Max-Planck-Institut für extraterrestrische Physik, pp. 169 - 174 (Eds. Brinkmann, W.; Trümper, J.). X-Ray Emission from Active Galactic Nuclei and the Cosmic X-Ray Background, Garching, Germany, November 04, 1991 - November 08, 1991. Max-Planck-Institut für extraterrestrische Physik, Garching, Germany (1992)
22.
Conference Paper
ROSAT-IUE All Sky Survey (RIASS): first results on active galaxies. In: X-Ray Emission from Active Galactic Nuclei and the Cosmic X-Ray Background: Proceedings of a Conference held at the Max-Planck-Institut für extraterrestrische Physik, pp. 155 - 162 (Eds. Brinkmann, W.; Trümper, J.). X-Ray Emission from Active Galactic Nuclei and the Cosmic X-Ray Background, Garching, Germany, November 04, 1991 - November 08, 1991. Max-Planck-Institut für extraterrestrische Physik, Garching, Germany (1992)
23.
Conference Paper
New heavily absorbed AGN and BL Lac objects identified from X-ray/radio/optical databases. In: Astronomy from Large Databases II - Proceedings, pp. 491 - 496 (Eds. Heck, A.; Murtagh, F.). Astronomy from Large Databases II, Haguenau, France, September 14, 1992 - September 16, 1992. European Southern Observatory, Garching, Germany (1992)
24.
Conference Paper
Multiwavelength monitoring of the BL Lac object PKS 2155-304. I. IUE observations. In: Science with the Hubble Space Telescope, pp. 89 - 95 (Eds. Benvenuti, P.; Schreier, E.). Science with the Hubble Space Telescope , Chia Laguna, Sardinia, Italy, June 29, 1992 - July 07, 1992. European Southern Observatory, Garching, Germany (1992)
25.
Conference Paper
Scientific results from the ROSAT all-sky survey. In: Astronomy from Large Databases II - Proceedings, pp. 139 - 141 (Eds. Heck, A.; Murtagh, F.). Astronomy from Large Databases II, Haguenau, France, September 14, 1992 - September 16, 1992. European Southern Observatory, Garching, Germany (1992)
26.
Conference Paper
EXSAS: the ROSAT data analysis system. In: Astronomy from Large Databases II - Proceedings, pp. 519 - 523 (Eds. Heck, A.; Murtagh, F.). Astronomy from Large Databases II, Haguenau, France, September 14, 1992 - September 16, 1992. European Southern Observatory, Garching, Germany (1992)