BV(RI)c photometry of Cepheids in the Magellanic Clouds

Thomas J. Moffett, Wolfgang P. Gieren, Thomas G. Barnes, Matias Gómez

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

27 Citas (Scopus)

Resumen

We report BV(RI)C data for a select group of 14 Cepheids in the Large Magellanic Cloud and eight in the Small Magellanic Cloud that have preexisting radial velocity curves. The photometry was obtained as part of a program to determine distances to these Cepheids by means of the visual surface brightness technique and to improve significantly the optical BV(RI)C light curves of Magellanic Cloud Cepheids. The data were acquired on the 0.9 m telescope at Cerro Tololo Inter-American Observatory with the CFCCD instrument and with the 1 m photometric telescope at ESO using aperture photometry. The median number of measures per Cepheid is 46 in each band, and the uncertainty in the photometry is typically ±0.01 mag. Using these data together with data from the literature, we determined improved periods for all variables. For most of the Cepheids, these revised periods lead to excellent, low-noise light curves, but for a few variables, the periods are obviously variable.

Idioma originalInglés
Páginas (desde-hasta)135-146
Número de páginas12
PublicaciónAstrophysical Journal, Supplement Series
Volumen117
N.º1
DOI
EstadoPublicada - jul 1998

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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