Separation of dwarf and giant stars with ROTSE-IIId

Bilir S., Guver T., Aslan M.

ASTRONOMISCHE NACHRICHTEN, vol.327, no.7, pp.693-697, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 327 Issue: 7
  • Publication Date: 2006
  • Doi Number: 10.1002/asna.200510614
  • Journal Name: ASTRONOMISCHE NACHRICHTEN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.693-697
  • Keywords: Galaxy : open clusters and associations, stars : colour-magnitude diagrams, stars : giants, OPEN CLUSTER NGC-752, RGU PHOTOMETRY, THEORETICAL ISOCHRONES, GALACTIC STRUCTURE, GALAXY, PARAMETERS, SYSTEMS, 2MASS, FIELD, MODEL
  • Istanbul University Affiliated: Yes

Abstract

136 stars which were known to be members of the open cluster NGC 752 were observed at the R band with the ROTSE-IIId telescope located at the Turkish National Observatory (TUG) site. The data had been evaluated together with BV and 2MASS photometric data. A new practical method for separating dwarf and giant was described and applied. Evaluating the colour magnitude-diagrams with Padova isochrones revealed for the open cluster NGC 752 a metallicity similar to the Sun and an age of 1.41 +/- 0.20 Gyr. g 2006 WILEY-VCH Verlag GmbH& Co. KGaA, Weinheim.