Automated photographic photometry of stars in globular clusters

Details Automated photographic photometry of stars in globular clusters Automated photographic photometry of stars in globular clusters

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...126..278b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 126, no. 2, Oct. 1983, p. 278-282.

Astronomy and Astrophysics

Astrophysics

131

Astronomical Photography, Globular Clusters, Star Distribution, Stellar Spectrophotometry, Hertzsprung-Russell Diagram, Stellar Evolution

Scientific paper

An automatic method for stellar photometry in crowded fields is presented. The reduction procedure, based on a multicomponent fitting routine, applies to PDS scans of a photographic plate and gives accurate magnitudes of all the objects with a detectable maximum (the estimated internal error is σ ≅ 0.02 m). The extended objects (galaxies or extremely blended stellar images) are recognized and passed to an interactive procedure. An application to the photometry of 2344 stars in the field of the globular cluster NGC 2808 is also shown.

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