The Galactic Generation-X: The First Study of the X-ray Properties of Massive E+A Galaxies

Details The Galactic Generation-X: The First Study of the X-ray Properties of Massive E+A Galaxies The Galactic Generation-X: The First Study of the X-ray Properties of Massive E+A Galaxies

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2254j&link_type=abstract

Chandra Proposal ID #08610215

Computer Science

Chandra Proposal Id #08610215

Scientific paper

We propose Chandra observations of 11 E+A galaxies from SDSS to detect X-ray emission from intermediate-mass X-ray binaries (IMXBs) and hot gas. E+As contain a young stellar population, but with no O or B stars. IMXBs are NSs or BHs accreting from a 2-5 M_Sun donor. During their active phase, a super-Eddington mass-transfer rate is expected. We expect 10-1000 bright IMXBs/galaxy. We will measure the X-ray flux to detect the IMXB contribution, and constrain IMXB formation. Detection of hot gas will study the regeneration of X-ray halos in typical early-type galaxies. Post-merger remnants are deficient in gas compared to early-type galaxies. E+As are an intermediate stage between merger remnants and early-type galaxies. X-ray studies of E+As will measure the gas accumulation rate.

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