V1135 HERCULIS: A DOUBLE-LINED ECLIPSING BINARY WITH AN ANOMALOUS CEPHEID


SİPAHİ E. , IBANOGLU C., ÇAKIRLI Ö. , DAL H. A. , Evren S.

REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA, vol.49, no.2, pp.239-251, 2013 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 2
  • Publication Date: 2013
  • Title of Journal : REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA
  • Page Numbers: pp.239-251

Abstract

BVR light curves and radial velocities for the double-lined eclipsing binary V1135 Her were obtained. Our analyses of the multi-color light curves and radial velocities led to the determination of fundamental stellar properties of both components of the interesting system V1135 Her. The system consists of two evolved stars, G1+K3 between giants and supergiants, with masses of M-1 = 1.461 +/- 0.054 M-circle dot and M-2 = 0.504 +/- 0.040 M-circle dot and radii of R-1 = 27.1 +/- 0.4 R-circle dot and R-2 = 10.4 +/- 0.2 R-circle dot. Most of the observed and calculated parameters of the V1135 Her and its location on the color-magnitude and period-luminosity diagrams lead to a classification of an Anomalous Cepheid.