Anomalous extinction in the Carina Nebula

Details Anomalous extinction in the Carina Nebula Anomalous extinction in the Carina Nebula

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.192..283t&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 192, July 1980, p. 283-296. Research supported by the National Research

Astronomy and Astrophysics

Astronomy

56

Electrophotometry, Interstellar Extinction, Nebulae, Star Clusters, Stellar Spectrophotometry, Ubv Spectra, Astronomical Photography, Near Infrared Radiation, Star Distribution

Scientific paper

Herbst's (1976) conclusion that the ratio (R) of total to selective extinction in the Great Carina Nebula (CN) is anomalously large with a representative value of about 5.0 is reevaluated. New UBV photometry of CN stars and star counts for associated clusters are used to demonstrate that a variable-extinction study of likely members of the Tr 14/16 and Cr 228 clusters yields a well-defined normal value of R equal to 3.20 plus or minus 0.28 s.e. for this region. In addition, a distance of 2.70 plus or minus 0.17 kpc is derived for the CN clusters, and likely foreground and background objects are detected in their environs.

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