Extinction law survey based on near IR photometry of OB stars

Details Extinction law survey based on near IR photometry of OB stars Extinction law survey based on near IR photometry of OB stars

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aca....43..209w&link_type=abstract

Acta Astronomica, vol. 43, no. 3, p. 209-234

Other

16

B Stars, Infrared Photometry, Interstellar Matter, O Stars, Astronomical Models, Stellar Luminosity

Scientific paper

The paper presents an extensive survey of interstellar extinction curves derived from the near IR photometric measurements of early type stars belonging to our Galaxy. This survey is more extensive and deeper than any other one, based on spectral data. The IR magnitudes of about 500 O and B type stars with E(B-V) greater than or equal to 0.05 were selected from literature. The IR color excesses are determined with the aid of 'artificial standards'. The results indicate that the extinction law changes from place to place. The mean galactic extinction curve in the near IR is very similar in different directions and changes very little from the value R = 3.10 plus or minus 0.05 obtained in this paper.

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