Aspects of Geneva photometry. Part 4 - Working with dusty data

Details Aspects of Geneva photometry. Part 4 - Working with dusty data Aspects of Geneva photometry. Part 4 - Working with dusty data

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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