Identifying Low Luminosity Sources in the Nearest Dwarf Spheriod Galaxies

Details Identifying Low Luminosity Sources in the Nearest Dwarf Spheriod Galaxies Identifying Low Luminosity Sources in the Nearest Dwarf Spheriod Galaxies

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1237r&link_type=abstract

Chandra Proposal ID #04600195

Physics

Chandra Proposal Id #04600195

Scientific paper

Observations of M81 show that disk and bulge X-ray sources have different luminosity functions. Our `birth-death' model has explained the two luminosity functions successfully. It also predicts a population of primordial X-ray Binaries (XRBs). The best place to look for these XRBs is nearby dwarf spheriodal galaxies. We propose to observe two of the closest using ACIS-I. These observations will test the birth-death model and in addition detect bright cataclymsic variables (CVs). This is the first census of CVs in dwarf galaxies, and will provide a control model for studies of CV-formation in globular clusters. We will also constrain the HII content in a HI rich and a HI rich poor dwarf.

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