XMM-Newton observations of variability in the X-ray binaries of M31: flares dips and a burst
Abstract
The XMM-Newton satellite has made four observations of the core of M31 as part of a survey that will span the entire galaxy. The majority of the X-ray emission is contributed by point sources, chiefly X-ray Binaries (XB). Exciting early results from a survey of time variability in three XMM exposures of the M31 core reveal XB exhibiting Sco X-1 like flaring, dips and a burst. The flaring source in M31 also exhibits variability in intensity and spectral hardness that is characteristic of a Z-source.
- Publication:
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arXiv e-prints
- Pub Date:
- March 2002
- DOI:
- arXiv:
- arXiv:astro-ph/0203475
- Bibcode:
- 2002astro.ph..3475B
- Keywords:
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- Astrophysics
- E-Print:
- 4 pages, 7 figures, to appear in Proc. Symposium ' New Visions of the X-ray Universe in the XMM-Newton and Chandra Era' ESA SP-488 August 2002