SIMBAD references

2010MNRAS.403L..69P - Mon. Not. R. Astron. Soc., 403, L69-L73 (2010/March-3)

The black hole in NGC 1313 X-2: constraints on the mass from optical observations.


Abstract (from CDS):

We present a theoretical study on the nature of the ultraluminous X-ray source NGC 1313 X-2. We evolved a set of binaries with high-mass donor stars orbiting a 20M or a 50-100Mblack hole (BH). Using constraints from optical observations, we restricted the candidate binary system for NGC 1313 X-2 to be either a 50-100M BH accreting from a 12-15M main-sequence star or a ∼20M BH with a 12-15Mgiant donor. If the modulation of 6.12±0.16 d recently identified as the orbital period of the system is confirmed, a ∼20M BH model becomes unlikely and we are left with the only possibility that the compact accretor in NGC 1313 X-2 is a massive BH of ∼50-100M.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): galaxies: X-rays: binaries - X-rays: galaxies

Simbad objects: 4

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