Chandra Detection of X-ray Absorption from Local Warm/Hot Gas

Abstract

Recently, with the Chandra X-ray Telescope we have detected several local X-ray absorption lines along lines-of-sight towards distant quasars. These absorption lines are produced by warm/hot gas located in local intergalactic space and/or in our Galaxy. I will present our observations and discuss the origin of the X-ray absorption and its implications in probing the warm/hot component of local baryons.

arXiv comment6 pages, 1 figure. To appear in "the IGM/Galaxy Connection - The Distribution of Baryons at z=0", 2002

References in corpus (18)

• The Cosmic Baryon Budget
• Where are the Baryons?
• Baryons in the Warm-Hot Intergalactic Medium
• Cosmic Chemical Evolution
• Chandra Discovery of a Tree in the X-ray Forest towards PKS 2155-304: the Local Filament?
• The Solar Motion Relative to the Local Group
• Chandra Detection of OVIII Ly-alpha Absorption from an Overdense Region in the Intergalactic Medium
• The Local Lyman-alpha Forest. II: Distribution of HI Absorbers, Doppler Widths, and Baryon Content
• O VI and Multicomponent H I Absorption Associated with a Galaxy Group in the Direction of PG0953+415: Physical Conditions and Baryonic Content
• The X-Ray Forest: A New Prediction of Hierarchical Structure Formation Models
• Revealing the Warm-Hot Intergalactic Medium with OVI Absorption
• X-Ray Absorption by the Hot Intergalactic Medium
• Far Ultraviolet Spectroscopy of the Intergalactic and Interstellar Absorption Toward 3C 273
• Probing the Intergalactic Medium with the OVI Forest
• Simulating the X-ray Forest
• A Cluster of Low-Redshift Lyman-alpha Clouds toward PKS 2155-304. I. Limits on Metals and D/H
• Probing Cosmology with the X-ray Forest
• Constraints on a Local Group X-ray Halo