2005/02/22 by E. Poretti, R. Alonso, P. J. Amado +17
Engineering · Physics and Astronomy · #Astronomy and Astrophysical Research #Space Technology and Applications #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/429149
13 pages, 9 figures. Accepted for The Astronomical Journal (2005 May volume)
arxiv created 2005/02/22 · openalex publication_date 2005/04/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
The activities related to the preparation of the asteroseismic, photometric space mission COROT are described. Photoelectric observations, wide-field CCD photometry, uvby β calibrations, and further time series have been obtained at different observatories and telescopes. They have been planned to complete the COROT program in the direction of the Galactic anticenter. In addition to suitable asteroseismic targets covering the different evolutionary stages between zero-age main sequence and terminal-age main sequence, we discovered several other variable stars, both pulsating and geometric. We compared results on the incidence of variability in the Galactic center and anticenter directions. Physical parameters have been obtained, and evolutionary tracks fitting them have been calculated. The peculiarities of some individual stars are pointed out.