The distribution of infrared sources in the galactic plane |
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Authors: | A G Ananth B V Nagaraja |
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Institution: | (1) ISRO Satellite Centre, Peenya, Bangalore, India |
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Abstract: | A study of the galactic structure has been made by deriving the brightness distribution of the galactic plane at 2.2 m and 4.2 m near infrared region using infrared objects detected by ground-based sky surveys. The infrared brightness distribution shows distinct peaks at every 8–12° galactic longitude and indicates a periodic structure. The one-to-one positional correlation observed between the periodic structure in 2.2 m 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. |
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