Dark Matter in Isolated Ellipticals and Groups

Details Dark Matter in Isolated Ellipticals and Groups Dark Matter in Isolated Ellipticals and Groups

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1778g&link_type=abstract

Chandra Proposal ID #06800426

Physics

Chandra Proposal Id #06800426

Scientific paper

We propose to observe a sample of elliptical galaxies and galaxy groups in order to map their dark matter content. Specifically we target the sole unobserved group in the Jones et al. (2003) sample (RX J1119.7+2126; MNRAS 343, 627), and the four isolated galaxies in the Colbert et al. (2001) sample (ApJ 121, 808) which show no significant dust obscuration or substructure. The first of these will be observed for 50 ks which will be sufficient to measure the temperature profile of the hot plasma to 10%, enabling the construction of a deprojected total mass profile. The remaining isolated galaxies will be observed for 20 ks each to determine their feasibility for mass reconstructions from longer GO7 observations.

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