Computer Science
Scientific paper
Apr 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005orion..63b...4c&link_type=abstract
Orion (ISSN 0030-557X), 63. Jahrgang, No. 327, p. 4 - 11 (2005)
Computer Science
Geneva Photometry, Interstellar Extinction
Scientific paper
In this fourth part of the article, we look at the manner in which interstellar extinction complicates the photometric calibration process even though the parameters used here are essentially reddening-free. This is particularly true for the fundamental observational estimate of stellar intrinsic luminosity habitually expressed as the absolute magnitude Mv. The primary stellar distance scale is based on trigonometrically derived distances (parallaxes) which are not affected by extinction. But, in the presence of interstellar reddening, one must be able to accurately compensate for that effect to fully exploit the distance data.
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