Overall distribution of infrared sources in our Galaxy

Details Overall distribution of infrared sources in our Galaxy Overall distribution of infrared sources in our Galaxy

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....58..325h&link_type=abstract

Astronomy and Astrophysics, vol. 58, no. 3, June 1977, p. 325-330.

Astronomy and Astrophysics

Astronomy

46

Galactic Structure, Infrared Astronomy, Interstellar Extinction, Milky Way Galaxy, Star Distribution, Astronomical Models, Giant Stars, H Ii Regions, Infrared Stars, Late Stars, Near Infrared Radiation

Scientific paper

Referring to the 2.4-micron surface brightness of the Galaxy, a model is constructed for the distribution of infrared sources. The infrared sources are interpreted in terms of the spheroidal component and the ring component, the latter being peaked at 5 kpc and 7.4 kpc. A strong deficiency of infrared sources is found within 4 kpc from the galactic center. The spheroidal component has a stronger central concentration and a larger eccentricity than the mass distribution and probably consists of late-type giants. The ring component shows a correlation with the distributions of CO molecules and giant H II regions and may therefore be attributed to young objects associated with molecular clouds.

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