Understanding the Low-Mass X-ray Binaries in the Sculptor Dwarf Spheroidal Galaxy

Details Understanding the Low-Mass X-ray Binaries in the Sculptor Dwarf Spheroidal Galaxy Understanding the Low-Mass X-ray Binaries in the Sculptor Dwarf Spheroidal Galaxy

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2480z&link_type=abstract

Chandra Proposal ID #09620553

Physics

Chandra Proposal Id #09620553

Scientific paper

We propose to obtain two 50 ks observations of the Sculptor Dwarf Spheroidal Galaxy. In conjunction with our series of observations in 2004 totalling 126 ks, this will allow us to study any changes over a four year baseline in the low-mass X-ray binary (LMXB) population we discovered in the initial dataset (Maccarone et al. 2005) The proposed observations will leverage the discovery of LMXBs in Sculptor and use the time baseline to address key questions about how LMXBs in the field form and evolve, and the implications of their retention in the low mass dwarf galaxy. In addition, we propose to obtain optical spectroscopy to understand why many of the optical counterparts have colors and magnitudes like those of horizontal branch stars.

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