The distance and structure of the Coalsack. II - Analysis

Details The distance and structure of the Coalsack. II - Analysis The distance and structure of the Coalsack. II - Analysis

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...225..192s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 225, no. 1, Nov. 1989, p. 192-203.

Astronomy and Astrophysics

Astrophysics

32

Cosmic Dust, Dark Matter, Galactic Structure, Interstellar Extinction, Interstellar Matter, Distance, Homogeneity, Milky Way Galaxy, Nebulae

Scientific paper

The extinction data and distance moduli of 280 stars observed in the Coalsack region (Seidensticker, 1989) are used to construct A(v)(m0-M)-diagrams in an attempt to determine the distance and morphology of this dust cloud. Evidence for two overlapping clouds at distances of 188 and 243 pc, respectively, is found. It is suggested that the Coalsack is not a single sheet of dust, but rather a conglomerate of overlapping dark clouds.

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