Computer Science
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..218s&link_type=abstract
XMM-Newton Proposal ID #03067304
Computer Science
White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Ngc 428, Ngc 1493, Ngc 3423, Ngc 7418, Xmm-Newton Proposal 03067304
Scientific paper
Nuclear clusters (NCs) in late-type spiral galaxies have more in common with massive, dense globular clusters (GCs) or super star clusters (SSCs) than early-type galactic bulges. They may host stellar- or intermediate-mass black holes (IMBHs), and if so may also be X-ray bright. We propose an XMM-Newton survey of nearby galaxies with well-studied NCs in order to determine how many of these NCs have appreciable X-ray emission. These observations will serve as a pilot study for a broader program targeting galactic NCs, which will allow us to place important constraints on the parameter space for models of IMBH formation, and to compare the X-ray properties and remnant population of these three classes of star clusters (NCs, GCs, SSCs) as a function of environment, age, star-formation history.
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