Parallax estimation using both trigonometric and photometric parallaxes

Details Parallax estimation using both trigonometric and photometric parallaxes Parallax estimation using both trigonometric and photometric parallaxes

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...152..413s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 152, no. 2, Nov. 1985, p. 413-416.

Mathematics

Probability

9

Astronomical Catalogs, Probability Density Functions, Stellar Magnitude, Stellar Parallax, Stellar Spectrophotometry, Astronomical Photometry

Scientific paper

An expression is derived for the probability density of the true parallax given a star's apparent magnitude and measured trigonometric parallax and the absolute magnitude distribution for its type. This expression allows calculation of the most probable parallax, which is compared with the conventionally-used weighted mean. The problem of compiling a catalogue of nearby stars is reconsidered.

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