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Astron. Astrophys. 339, 449-456 (1998)

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The problem of the high mass of the hot component in the recurrent nova T Coronae Borealis solved after 38 years

L. Hric 1, K. Petrík 2, Z. Urban 1, P. Niarchos 3 and G.C. Anupama 4

1 Astronomical Institute of the Slovak Academy of Sciences, SK-059 60 Tatranská Lomnica, The Slovak Republic (hric@ta3.sk)
2 Department of Mathematics, Informatics and Physics, Pedagogical Faculty, University of Trnava, SK-918 43 Trnava, The Slovak Republic
3 Section of Astrophysics, Astronomy and Mechanics, Department of Physics, University of Athens, GR-157 83 Zografos, Athens, Greece
4 Indian Institute of Astrophysics, Bangalore 5600 34, India

Received 30 January 1998 / Accepted 22 July 1998

Abstract

In this paper, we present long-term spectroscopic observations of the recurrent nova (RN) T CrB obtained between the years 1985 and 1996 using 1.02 m and 2.34 m telescopes of the Vainu Bappu Observatory in India and the long-term photoelectric photometry of the object obtained mainly at the Skalnaté Pleso Observatory and at the Hlohovec Observatory in Slovakia. On the basis of our results, we have returned to the re-analysis of the old radial-velocity measurements published by Kraft (1958). The results obtained solve unambiguously the problem of the apparently too high mass of the hot component of T CrB, unacceptable if it has to be a white dwarf (WD), as several independent lines of evidence suggest.

Key words: stars: individual: T CrB – novae, cataclysmic variables – white dwarfs

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© European Southern Observatory (ESO) 1998

Online publication: October 21, 1998
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