The properties of the Neckel-Chini VRI system

Details The properties of the Neckel-Chini VRI system The properties of the Neckel-Chini VRI system

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97.1798t&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 97, June 1989, p. 1798-1806.

Astronomy and Astrophysics

Astronomy

21

Astrometry, Infrared Photometry, Stellar Spectrophotometry, Visual Photometry, Interstellar Extinction, Stellar Color, Variable Stars

Scientific paper

Cousins (1980) data for 54 of the standard stars of Neckel and Chini (1980) and published measurements are used to investigate the properties of the Neckel-Chini VRI system. For red stars, this system diverges from the Johnson (1962) system, despite frequent claims of identity between the two. The Neckel-Chini and Cousins systems, however, are closely comparable. Both of these conclusions were previously reached in a paper by Bessell (1983); fair to good quantitative agreement with his results are obtained. Reddening ratios, the scatter in the Neckel-Chini standard-star data, and the effect of this scatter on published measurements for program stars, are discussed. Transformations from the Neckel-Chini system to the Cousins system are given.

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