A catalogue of close binaries located in the delta Scuti region of the Cepheid instability strip

SOYDUGAN F., SOYDUGAN F., Demircan O., İbanoğlu C.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol.370, no.4, pp.2013-2024, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 370 Issue: 4
  • Publication Date: 2006
  • Doi Number: 10.1111/j.1365-2966.2006.10628.x
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2013-2024
  • Keywords: binaries : eclipsing, stars : oscillations, delta Scuti
  • Çanakkale Onsekiz Mart University Affiliated: Yes


A catalogue of close eclipsing binary systems (detached and semidetached) with at least one of the components located in the delta Scuti region of the Cepheid instability strip is presented. The positions of the stars in the instability strip are determined by their accurate temperatures and luminosities. Observationally detected binaries (20 semidetached, four detached and one unclassified) with oscillating components were included in the catalogue as a separate table. The primaries of the oscillating Algols tend to be located near the blue edge of the instability strip. Using reliable luminosities and temperatures determined by recent photometric and spectroscopic studies, we have found that at least one or two components of 71 detached and 90 semidetached systems are located in the delta Scuti region of the Cepheid instability strip. In addition, 36 detached or semidetached systems discovered by the Hipparcos satellite were also given as a separate list. One of their components is seen in the delta Scuti region, according to their spectral type or B - V colours. They are potential candidate binaries with the delta Scuti-type pulsating components which need further photometric and spectroscopic studies in better precision. This catalogue covers information and literature references for 25 known and 197 candidate binaries with pulsating components.