The distribution of interstellar extinction near the sun

Details The distribution of interstellar extinction near the sun The distribution of interstellar extinction near the sun

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.126..269d&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 126, no. 2, Oct. 1986, p. 269-293.

Astronomy and Astrophysics

Astrophysics

6

Astronomical Maps, Interstellar Extinction, Solar System, Spectral Energy Distribution, Ubv Spectra, Milky Way Galaxy, Molecular Clouds, Polarization Characteristics, Star Distribution, Stellar Color

Scientific paper

Photometric data in uvbyβ system from 3713 stars are used to map the distribution of colour excesses up to 500 parsec from the Sun, producing diagrams for a series of layers aligned with the galactic plane. Individual clouds are detected, with a mean diameter of 6 parsecs, while cloud complexes have a mean diameter of 100 pc. From the maps it seems that the interstellar medium near the Sun presents regions of non-negligible extinction, while the Sun itself is embedded in a diffuse cloud, or slightly off its border. The large scatter in the distribution of E(b-y) is confirmed, with a mean extinction of Av = 0m.38 up to 500 pc.

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