In Search of ``NORMAL'' Elliptical Galaxies

Details In Search of ``NORMAL'' Elliptical Galaxies In Search of ``NORMAL'' Elliptical Galaxies

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..649f&link_type=abstract

Chandra Proposal ID #02600916

Other

Chandra Proposal Id #02600916

Scientific paper

For ellipticals at the centers of groups or clusters, it is not possible to observe the galaxy potential or the abundances and temperature structure of the gas in the galaxy independently from the surrounding ICM. However by observing ellipticals of similar optical magnitudes in shallow potentials of poor groups, we can determine the X-ray properties of ``normal'' ellipticals. ACIS observations of two pairs of ellipticals -- NGC 7619/NGC 7626 and NGC 3607/NGC 3608 will map the temperature, density and heavy elements in their hot gas and determine the mass distribution in their halos. By comparing these galaxies with each other, and with others in denser environments, we can determine the characteristics of normal ellipticals and how these properties are affected by their environments.

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