Monitoring of Ultraluminous X-ray sources in the Antennae Galaxies

Details Monitoring of Ultraluminous X-ray sources in the Antennae Galaxies Monitoring of Ultraluminous X-ray sources in the Antennae Galaxies

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop....4f&link_type=abstract

XMM-Newton Proposal ID #05000701

Computer Science

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, The Antennae, Xmm-Newton Proposal 05000701

Scientific paper

Spectral state transitions are a key signature of black hole binaries (BHBs) and reflect the properties of the accretion flow and the central compact object. They have been systematically studied in Galactic BHBs and found to follow well-defined patterns. Ultraluminous X-ray sources (ULXs) are either intermediate-mass black holes or a special class of stellar-mass black holes, and should follow a set pattern of spectral evolution which is essentially associated with their natures. We propose 6 XMM observations of the Antennae galaxies (NGC 4038/4039) with an exposure of 20 ksec each and at intervals of weeks to months to see if state transitions of ULXs have the same, or different, pattern as Galactic BHBs.

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