On the structure and mass of the Galactic halo

Details On the structure and mass of the Galactic halo On the structure and mass of the Galactic halo

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.110..379n&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 110, no. 2, March 1985, p. 379-391.

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Computation

6

Galactic Structure, Halos, Interstellar Matter, Mass Distribution, Milky Way Galaxy, Astronomical Models, Computational Astrophysics, Gas Temperature, Globular Clusters, Interstellar Gas, Interstellar Magnetic Fields, Nonthermal Radiation, Radio Emission

Scientific paper

On the basis of a globular cluster study a crude estimate of the total mass of the galactic halo within 20 kpc from the centre is done. It gives a minimal halo mass of the order of 1010M_sun;, yielding possiblities for a mass as large as ≡1011M_sun;. The content of the interstellar matter in the halo is estimated, too. It is found that the gas content is a few percents the minimal mass, the gas temperature is very high - about 1×106K, the magnetic field weak - about 0.25 nT. A weak nonthermal radio emission might be expected from such a halo.

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