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

Details Pressure at the ISM-halo interface: a reheating frequency dependence Pressure at the ISM-halo interface: a reheating frequency dependence

1998-04-23

arxiv.org/abs/astro-ph/9804246v1

Astronomy and Astrophysics

Astrophysics

LaTeX file, 11 pages, 2 postscript figures, to appear in Bull. Astron. Belgrade. Uses aasms.sty

Scientific paper

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-Escud\'e is sufficiently robust with respect to uncertainties in the average interval between reheating.

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