Testing binary evolution in pristine ancient dwarf galaxies

Details Testing binary evolution in pristine ancient dwarf galaxies Testing binary evolution in pristine ancient dwarf galaxies

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2484d&link_type=abstract

Chandra Proposal ID #09620817

Computer Science

Chandra Proposal Id #09620817

Scientific paper

Dwarfs are the most populous classes of galaxies in the Universe, and provide the building blocks of galaxy formation. We propose to study the X-ray source population in 4 nearby, ancient, isolated dwarfs (Draco, Ursa Min, Sextans and Carina), down to a detection limit ~ 5E33 erg/s. Chandra's spatial resolution will allow a simpler identification of their optical counterparts, separating local sources from background AGN. We will determine whether the accretors are neutron stars or white dwarfs. We will compare the results for pristine dwarfs with those for galaxies with more recent star formation. By determining the spatial and velocity distribution of neutron stars we will have a handle on the dark matter content.

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