Preparing the COROT space mission: New variable stars in the galactic anticenter direction

Autor(en)

Ennio Poretti, Roi Alonso, Pedro J. Amado, Juan Antonio Belmonte, Rafael Garrido, S Martin-Ruiz, Katrien Uytterhoeven, Claude Catala, Y Lebreton, Eric Michel, Juan Carlos Suarez, Conny Aerts, O Creevey, Marie J. Goupil, Luciano Mantegazza, P Mathias, Monica Rainer, Werner Wolfgang Weiss

Abstrakt

The activities related to the preparation of the asteroseismic, photometric space mission COROT are described. Photoelectric observations, wide-field CCD photometry, uvbyß 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. Œ 2003 The American Astronomical Society. All rights reserved.

Organisation(en)

Institut für Astrophysik

Externe Organisation(en)

INAF Osservatorio Astronomico di Brera, Instituto de Astrofísica de Canarias (IAC), Instituto de Astrofísica de Andalucía, Katholieke Universiteit Leuven, Université de recherche Paris Sciences et Lettres, National Center for Atmospheric Research (NCAR), Université Côte d'Azur

Journal

The Astronomical Journal

Band

129

Seiten

2461-2468

Anzahl der Seiten

8

ISSN

0004-6256

DOI

https://doi.org/10.1086/429149

Publikationsdatum

2005

Peer-reviewed

Ja

ÖFOS 2012

103003 Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/f19d0ce2-0715-46c1-9da4-d077e489897a