Infant Ellipticals: The Evolution of Young Merger-Remnants

Details Infant Ellipticals: The Evolution of Young Merger-Remnants Infant Ellipticals: The Evolution of Young Merger-Remnants

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cfdd.confe..72b&link_type=abstract

Chandra's First Decade of Discovery, Proceedings of the conference held 22-25 September, 2009 in Boston, MA. Edited by Scott Wo

Computer Science

Galaxies

Scientific paper

Studies of elliptical galaxies have revealed an intriguing population of young merger-remnant galaxies, which are found to be X-ray faint when compared to mature ellipticals. Here I will present the properties of two post-mergers (1-2 Gyr since coalescence) that have recently been observed with Chandra and I will discuss how these observations have allowed us to probe an important gap in the evolution of elliptical galaxies. From these observations we can place constraints on the growth of post-merger X-ray luminosity per unit mass, investigate the point source population and observe how the diffuse emission evolves through the regeneration of hot gas haloes. Further, I will also compare these observed X-ray haloes with hydrodynamical simulations of decoupled hot gas within elliptical galaxies.

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