Cooling radius vs. absorption size of galaxies

Citation
Mm. Cirkovic et al., Cooling radius vs. absorption size of galaxies, ASTRO SP SC, 274(4), 2000, pp. 867-875
Citations number
49
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICS AND SPACE SCIENCE
ISSN journal
0004640X → ACNP
Volume
274
Issue
4
Year of publication
2000
Pages
867 - 875
Database
ISI
SICI code
0004-640X(2000)274:4<867:CRVASO>2.0.ZU;2-T
Abstract
The discussion of the relationship between cooling radius in two-phase adia batic halo models and observationally established maximal radius of absorpt ion in luminous galaxies at low redshift is presented. It is of paramount i mportance that any viable model of the halo is able to reproduce empirical value of the absorption cross-section of normal galaxies and its scaling wi th luminosity. Several ways for bringing the theoretical and observational values into agreement are outlined. It is of great methodological importanc e to fully assess the difficulties any model is likely to encounter when te sting predicted extent of absorption and column density distribution agains t recently obtained low-redshift Ly alpha absorption data.