Peridier Library Abstract Archive

Abstract No. UT 396

Title: Reionization Feedback and the Photoevaporation of Intergalactic Clouds
Author(s): Paul R. Shapiro, Alejandro C. Raga, and Garrelt Mellema
Keywords: cosmology: theory --- galaxies: intergalactic medium --- hydrodynamics
Email: Paul Shapiro (to request a full copy of this paper)
Preprint: 9710210 Document source or PostScript
Release date: 03/03/98 13:54:20
Publication status: in Structure and Evolution of the IGM from QSO Absorption Line Systems (13th IAP Colloquium), eds. P. Petitjean and S. Charlot, in Press
Comments: 5 pages, 3 figures

Energy released by a small fraction of the baryons in the universe, which condensed out of while the IGM was cold, dark, and neutral, reheated and reionized it, exposing gas clouds within it to the glare of ionizing radiation. The first gas dynamical simulations of the photoevaporation of an intergalactic cloud by a quasar, including radiative transfer, are presented, along with a few observational diagnostics.