PlumX Metrics
Embed PlumX Metrics

XMMU J134736.6+173403: An eclipsing LMXB in quiescence or a peculiar AGN?

Astronomy and Astrophysics, ISSN: 0004-6361, Vol: 480, Issue: 3, Page: 807-810
2008
  • 2
    Citations
  • 0
    Usage
  • 7
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

Aims.We report the discovery of a peculiar object observed serendipitously with XMM-Newton. We present its timing and spectral properties and investigate its optical counterpart. Methods.The light curve of the X-ray source, its spectrum, and the spectrum of the best optical counterpart are presented and analyzed.Results.The X-ray flux decreases by a factor of 6.5 within 1h and stays in a low state for at least 10 h, thereby suggesting the presence of an eclipse. The spectrum is very soft, a power law with a slope of , and does not change significantly before and after the flux drop. The source is spatially coincident within few arc-seconds with a Seyfert 2 galaxy belonging to a galaxy pair.Conclusions.Although the background AGN seems the best counterpart, neither the temporal nor the spectral properties of the X-ray source are compatible with it. We investigate the possibility of having a foreground low-mass X-ray binary in quiescence, where the companion is not detected in the optical wavelength. © 2008 ESO.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know