Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-28T00:25:21.364Z Has data issue: false hasContentIssue false
  • English
  • Français

Hydrogen Deficiency in Algol Secondaries

Published online by Cambridge University Press:  12 April 2016

Praveen Nagar  and
K.D. Abhyankar
Praveen Nagar
Affiliation:
Centre of Advanced Study in AstronomyOsmania UniversityHyderabad - 500 007, INDIA
K.D. Abhyankar
Affiliation:
Centre of Advanced Study in AstronomyOsmania UniversityHyderabad - 500 007, INDIA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A study was carried out for 309 Algol systems to show that most of the secondary components of low mass-ratio systems are hydrogen deficient stars. This hydrogen deficiency is evident from their positions on a Δ log L - Δ log T plot, where Δ is the difference between the observed quantity, log L or log Te, and the value of the same quantity for a star of the same mass on the empirical Main Sequence. The secondary components are shown to occupy the region of mass losing helium dwarfs on this plot. A correlation has also been obtained between the excess of effective temperature and the mass ratio of the system.

Type
V Hydrogen Deficient Binaries
Information
International Astronomical Union Colloquium , Volume 87: Hydrogen Deficient Stars and Related Objects , 1985 , pp. 251 - 257
Copyright
Copyright © Reidel 1986

References

Abhyankar, K.D.: 1984, Astrophys. Sp. Sc. 99, 355.Google Scholar
Brancewicz, H.K. and Dworak, T.Z.: 1980, Acta. Astron. 30, 501.Google Scholar
Budding, E.: 1984, Review paper presented at the 3rd Asian-Pacific IAU meeting in Japan.Google Scholar
Giuricin, G., Mardirossian, F. and Mezzetti, M.: 1983, Astrophys.J. Suppl. 52, 35.Google Scholar
Hansen, C.J., Cox, J.P. and Herz, M.A.: 1972, Astron. Astrophys. 19, 144.Google Scholar
Neo, S., Miyaji, S. and Nomoto, K.: 1977, Pub. Astron. Soc. Japan 29, 249.Google Scholar
Refsdal, S. and Weigert, A.: 1969, Astron. Astrop. 1, 167.Google Scholar
Webbink, R.F.: 1975, Monthly Notices R.A.S. 171, 555.Google Scholar
Ziolkowski, J.: 1969, Astrophys. Sp. Sc. 3, 14.Google Scholar