Deep census of variable stars in a VLT/VIMOS field in Carina

P. Pietrukowicz, D. Minniti, J. M. Fernández, G. Pietrzyński, M. T. Ruíz, W. Gieren, R. F. Díaz, M. Zoccali, M. Hempel

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

8 Citas (Scopus)

Resumen

Aims. We searched for variable stars in deep V-band images of a field towards the Galactic plane in Carina. Methods. The images were taken with the VIMOS instrument at ESO VLT during 4 contiguous nights in April 2005. We detected 348 variables among 50 897 stars in the magnitude range between V = 15.4and V = 24.5 mag. After detection, we classified the variables by a direct eye inspection of their light curves. Results. All variable objects besides 9 OGLE transits in the field are new discoveries. We provide a complete catalog of all variables, which includes eclipsing/ellipsoidal binaries, miscellaneous pulsators (mostly δ Scuti-type variables), stars with flares, and other (irregular and likely long-period) variables. Only two of the stars in our sample are known to host planets. Conclusions. Our result has implications for future large variability surveys.

Idioma originalInglés
Páginas (desde-hasta)651-662
Número de páginas12
PublicaciónAstronomy and Astrophysics
Volumen503
N.º2
DOI
EstadoPublicada - ago 2009

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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