STARE observations of potential COROT fields

R. Alonso1, T.M Brown2, J.A. Belmonte1, R. Garrido3, E. Michel4
1 Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38200 La Laguna, Spain
2 High Altitude Observatory/National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80307, USA
3 Instituto de Astrofísica de Andalucía, CSIC, P.O. Box 3004, E-18080 Granada, Spain
4 Observatoire du Paris-Meudon, 5 Pl. Jules Janssen, 92195 Meudon, France

 

Four fields in the COROT anticenter direction (RA 6h50m Dec 0) have been observed during four nights in March 2002, with the STARE telescope (9.9cm, 286mm focal length, installed at Observatorio del Teide and funding by NASA Origins of the Solar Systems programme). A change in the rutinary exposure time employed for the planet search programme allowed as to obtain light curves of aprox. 2000 stars per 6.1x6.1deg2 STARE's field. These stars are 6.8 < V < 11, and might be used to help in the election of the fields to be observed by COROT in the asteroseismology CCD (1.3x2.7deg2).
Data are avaliable from the authors with sampling 38s (25s exposure time + 13s readout), averaged in 5min bins and averaged in 15min bins. The best rms obtained in these sets of data are aprox. 10,6 and 3 mmag respectively. Several unknown variable stars, with potential interest to be observed by COROT as secondary targets, have been discovered.

 
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