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astro-ph1999
Formation of Massive Black Holes in Early Mergers ?
Hartmut Schulz, Stefanie Komossa
We review theoretical and observational arguments favoring a scenario in which a typical massive black hole (MBH) is formed in the merger core of colliding disk systems at high z d…
astro-ph1999
The nature of the luminous X-ray emission of NGC 6240
Stefanie Komossa, Hartmut Schulz
We briefly review and extend our discussion of the ROSAT detection of the extraordinarily luminous (> 10^{42} erg/s) partly extended (> 30 kpc diameter) X-ray emission from the ult…