Pressure at the ISM-halo interface: A reheating frequency dependence

The dependence of the thermal pressure of hot galactic halos on a model parameter describing the frequency of major reheating episodes during galactic history is investigated. Pressure on the interface between interstellar medium and the halo gas is especially interesting, since empirica...

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Bibliographic Details
Main Author: Ćirković M.M.
Format: Article
Language:English
Published: Astronomical Observatory, Department of Astronomy, Belgrade 1998-01-01
Series:Serbian Astronomical Journal
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-698X/1998/1450-698X9857019C.pdf
Description
Summary:The dependence of the thermal pressure of hot galactic halos on a model parameter describing the frequency of major reheating episodes during galactic history is investigated. Pressure on the interface between interstellar medium and the halo gas is especially interesting, since empirical evidence here offers one of the simplest constraints on halo models. It is shown that two-phase model of Mo & Miralda-Escudé is sufficiently robust with respect to uncertainties in the average interval between reheating.
ISSN:1450-698X
1820-9289