Publikationen von Ralph Keil

Tanaka, Y.; Boller, T.; Gallo, L.; Keil, R.; Ueda, Y.: Partial covering interpretation of the X-ray spectrum of the NLS1 1H 0707-495. Publications of the Astronomical Society of the Pacific 56 (3), S. L9 - L13 (2004)

Boller, T.; Keil, R.; Hasinger, G.; Costantini, E.; Fujimoto, R.; Anabuki, N.; Lehmann, I.; Gallo, L.: XMM-Newton observation of the ULIRG NGC 6240. The physical nature of the complex Fe K line emission. Astronomy & Astrophysics 411, S. 63 - 70 (2003)

Boller, T.; Fabian, A. C.; Sunyaev, R.; Trümper, J.; Vaughan, S.; Ballantyne, D. R.; Brandt, W. N.; Keil, R.; Iwasawa, K.: XMM-Newton discovery of a sharp spectral feature at ~ 7 keV in the narrow-line Seyfert 1 galaxy 1H 0707-495. Monthly Notices of the Royal Astronomical Society 329 (1), S. L1 - L5 (2002)

Keil, R.; Boller, T.; Fujimoto, R.: XMM-Newton study of the ULIRG NGC 6240. In: Lighthouses of the Universe: The Most Luminous Celestial Objects and Their Use for Cosmology, S. 298 - 300 (Hg. Gilfanov, M.; Sunyaev, R.; Churazov, E.). Lighthouses of the Universe : The Most Luminous Celestial Objects and Their Use for Cosmology, Garching, Germany, 06. August 2001 - 10. August 2001. Springer, Berlin (2002)

Keil, R.: X-ray studies of ultraluminous infrared galaxies observed with XMM-Newton. Dissertation, Universität Hamburg, Hamburg (2006)