Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-02-21
Astronomy and Astrophysics
Astrophysics
11 pages, PASJ in press
Scientific paper
Recent high-resolution X-ray imaging studies have discovered possible candidates of intermediate-mass black holes with masses of $M_\bullet \sim 10^{2-4} \MO$ in circumnuclear regions of many (disk) galaxies. It is known that a large number of massive stars are formed in a circumnuclear giant H {\sc ii} region. Therefore, we propose that continual merger of compact remnants left from these massive stars is responsible for the formation of such an intermediate-mass black hole within a timescale of $\sim 10^9$ years. A necessary condition is that several hundreds of massive stars are formed in a compact region with a radius of a few pc.
Ikeuchi Satoru
Shioya Yasuhiro
Taniguchi Yoshiaki
Tsuru Takeshi G.
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