New beta Cephei variable in the Southern open cluster NGC 6200: ALS 3728

ULUSOY C., NIEMCZURA E., Ulas B., GUELMEZ T.

NEW ASTRONOMY, ss.55-58, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası:
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.newast.2013.02.005
  • Dergi Adı: NEW ASTRONOMY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.55-58
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Hayır

Özet

We report the evidence of a new beta Cephei type variable located in the Southern open cluster NGC 6200: ALS 3728. Spectroscopic and photometric observations of NGC 6200 stars were carried out at the South African Astronomical Observatory (SAAO) in 2011. It was found that ALS 3728 has a frequency of about 4.95 d(-1), with highest amplitude. The star also shows a remarkable stillstand phase just before its light maxima which is a typical characteristic occurring among these type of stars. Furthermore, a mode identification is applied for the dominant frequency calculated from the Fourier analysis. (C) 2013 Elsevier B.V. All rights reserved.