Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..77..503a&link_type=abstract
Astrophysics and Space Science, vol. 77, no. 2, July 1981, p. 503-509. Research supported by the Department of Space and Space
Astronomy and Astrophysics
Astronomy
1
Galactic Structure, Infrared Astronomy, Infrared Stars, Milky Way Galaxy, Star Distribution, Brightness, Hydrogen Clouds, Infrared Radiation, Molecular Clouds, Sky Surveys (Astronomy)
Scientific paper
A study of the galactic structure has been made by deriving the brightness distribution of the galactic plane at 2.2 and 4.2 microns near infrared region using infrared objects detected by ground-based sky surveys. The infrared brightness distribution shows distinct peaks at every 8-12 deg galactic longitude and indicates a periodic structure. The one-to-one positional correlation observed between the periodic structure in 2.2 micron infrared brightness and the 2.6 mm CO emission line suggests that the near-infrared sources are strongly associated with dense clouds of molecular hydrogen distributed in the galactic plane.
Ananth A. G.
Nagaraja B. V.
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