Accretion of intergalactic gas by a realistic model of the Galaxy and its implications

Details Accretion of intergalactic gas by a realistic model of the Galaxy and its implications Accretion of intergalactic gas by a realistic model of the Galaxy and its implications

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975mnras.173..465h&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 173, Nov. 1975, p. 465-487. Research supported by the Atomic Energy Res

Astronomy and Astrophysics

Astronomy

10

Cosmic Gases, Galactic Structure, Gravitational Fields, Intergalactic Media, Mass Transfer, Milky Way Galaxy, Abundance, Astronomical Models, Big Bang Cosmology, Heavy Elements, Hydrogen Clouds, Internal Pressure

Scientific paper

A numerical solution is presented for the maximal accretion flow towards a stationary Galaxy from the intergalactic gas. The galactic gravitational field is represented by a realistic model, and the accretion is assumed to be maximal in the sense that the effect of galactic internal pressure is ignored. It is shown that it is essential not to ignore the internal pressure if various observational constraints are to be satisfied. The results imply an increase in the estimate for the mean density of the Universe.

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