Kenneth R. Sembach
Published 2003-11-04Version 1
There is increasing observational evidence that hot, highly ionized interstellar and intergalactic gas plays a significant role in the evolution of galaxies in the local universe. The primary spectral diagnostics of the warm-hot interstellar/intergalactic medium are ultraviolet and X-ray absorption lines of O VI and O VII. In this paper, I summarize some of the recent highlights of spectroscopic studies of hot gas in the Local Group and low-redshift universe. These highlights include investigations of the baryonic content of low-z O VI absorbers,evidence for a hot Galactic corona or Local Group medium, and the discovery of a highly ionized high velocity cloud system around the Milky Way.
Comments: 14 pages, includes 5 figures and cupconf.cls style file. To be published in the proceedings of the 2003 STScI May Symposium "The Local Group as an Astrophysical Laboratory"
Search for Hot Gas in the Local Group with ASCA
An XMM-Newton Observation of NGC 1399 Reveals Two Phases of Hot Gas and Super-Solar Abundances in the Central Regions
BeppoSAX observation of NGC3923, and the problem of the X-ray emission in E/S0 galaxies of low and medium Lx/Lb
