SIMBAD references

2003A&A...405..505B - Astronomy and Astrophysics, volume 405, 505-511 (2003/7-2)

RX J0042.3+4115: A stellar mass black hole binary identified in M 31.


Abstract (from CDS):

Four XMM-Newton X-ray observations of the central region of the Andromeda Galaxy (M 31) have revealed an X-ray source that varies in luminosity over ∼1-3x1038erg/s between observations and also displays significant variability over time-scales of a few hundred seconds. The power density spectra of lightcurves obtained in the 0.3-10keV energy band from the three EPIC instruments on board XMM-Newton are typical of disc-accreting X-ray binaries at low accretion rates, observed in neutron star binaries only at much lower luminosities (∼1036erg/s). However X-ray binaries with massive black hole primaries have exhibited such power spectra for luminosities >1038erg/s. We discuss alternative possibilities where RX J0042.3+4115 may be a background AGN or foreground object in the field of view, but conclude that it is located within M 31 and hence use the observed power spectra and X-ray luminosities to identify the primary as a black hole candidate.

Abstract Copyright:

Journal keyword(s): X-rays: general - galaxies: individual: M 31 - X-rays: binaries - black hole physics

Errata: erratum vol. 469, p. 873 (2007)

CDS comments: Table 4 : CXOM31 J004232.1+411939 is a misprint for CXOM31 J004231.2+411939.

Simbad objects: 21

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