We report an observational result for a ULX in NGC253. We find that the spectral evolution is well consistent with the standard behavior. That is, the source satisfies the relation Ldisk ∝ Tin 4 as established for black hole binaries. By comparing with black hole binaries, we estimate black hole mass of this ULX as 7M⊙.
|Number of pages||2|
|Journal||Progress of Theoretical Physics Supplement|
|Publication status||Published - 2004|
ASJC Scopus subject areas
- Physics and Astronomy(all)