X-ray emission from early-type galaxies
Abstract
The past decade has seen a large progress in the X-ray investigation of early-type galaxies of the local universe, and first attempts have been made to reach redshifts z>0 for these objects, thanks to the high angular resolution and sensitivity of the satellites Chandra and XMM-Newton. Major advances have been obtained in our knowledge of the three separate contributors to the X-ray emission, that are the stellar sources, the hot gas and the galactic nucleus. Here a brief outline of the main results is presented, pointing out the questions that remain open, and finally discussing the prospects to solve them with a wide area X-ray survey mission such as WFXT.
Cite
@article{arxiv.1011.2011,
title = {X-ray emission from early-type galaxies},
author = {S. Pellegrini},
journal= {arXiv preprint arXiv:1011.2011},
year = {2010}
}
Comments
6 pages, 4 figures; to appear in the Proceedings of "The Wide Field X-ray Telescope Workshop", held in Bologna, Italy, Nov. 25-26 2009, published by Memorie della Societ\`a Astronomica Italiana 2010 (arXiv:1010.5889)