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The Nature of RV Tauri Stars

Published online by Cambridge University Press:  25 May 2016

T. Lloyd Evans
T. Lloyd Evans*
Affiliation:
South African Astronomical Observatory, P. O. Box 9, Observatory 7935, South Africa

Abstract

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The infrared colours of the RV Tauri stars fall in a well-defined and thinly-populated region of the IRAS [12] – [25], [25] – [60] diagram. This provides an alternative method of searching for such stars. Stars with these IRAS colours as well as the K and L excesses which are also typical of RV Tauri stars have spectral types from B to M. The characteristic variability of RV Tauri-type has been found for several stars with spectral types typical of known RV Tauri stars, while stars of different spectral types do not vary in this way. RV Tauri stars are the stars with these colours, probably indicative of a dusty circumstellar disk, which lie within the Cepheid instability strip.

Type
Part 5. Non-Spherical Mass Loss, Binarity, Post-AGB Evolution
Information
Symposium - International Astronomical Union , Volume 191: Asymptotic Giant Branch Stars , 1999 , pp. 453 - 458
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Alcock, C., et al., 1998, AJ 115, 1921 Google Scholar
Beichman, C.A., Neugebauer, G., Habing, H.J., Clegg, P.E., Chester, T.J., 1988, Infrared Astronomical Satellite (IRAS) Catalog, NASA, Washington DC Google Scholar
Gehrz, R.D., Woolf, N.J., 1970, ApJ 161, L213 Google Scholar
Giridhar, S., Rao, N.K., Lambert, D.L., 1990, Observatory 110, 120 Google Scholar
Giridhar, S., Rao, N.K., Lambert, D.L., 1992. JA&A 13, 307 Google Scholar
Herbig, G.H., 1969, Contr. Lick Obs. No 302 Google Scholar
Joy, A.H., 1952, ApJ 115, 25 Google Scholar
Kholopov, P.N., Samus, N.N., Frolov, M.S., Goranskij, V.P., Gorynya, N.A., Kireeva, N.N., Kukarkina, N.P., Kurochkin, N.E., Medvedeva, G.I., Perova, N.B., Shugarov, S.Yu., 1985, General Catalogue of Variable Stars, Nauka Publishing House, Moscow Google Scholar
Lloyd Evans, T., 1974, MNRAS 167, 17P Google Scholar
Lloyd Evans, T., 1985, MNRAS 217, 493 Google Scholar
Lloyd Evans, T., 1997, Ap&SS 251, 239 Google Scholar
Menzies, J.W., Whitelock, P.A., 1988, MNRAS 233, 697 CrossRefGoogle Scholar
Pollard, K.R., et al., 1996, in Variable Stars and the Astrophysical Returns of Microlensing Surveys, 12th IAP Astrophysics Colloquium, Ferlet, R., Maillard, J.-P. and Raban, B. (eds.), Edition Frontières, Gif-sur-Yvette, p. 219 Google Scholar
Pollard, K.R., Cottrell, P.L., Albrow, M.D., Tobin, W., 1997, MNRAS 286, 1 Google Scholar
Preston, G.W., 1964, ApJ 140, 173 Google Scholar
Preston, G.W., Krzeminski, W., Smak, J., Williams, J.A., 1963, ApJ 137, 401 CrossRefGoogle Scholar
Raveendran, A.V., 1989, MNRAS 238, 945 Google Scholar
Strom, K.M., Strom, S.E., Edwards, S., Cabrit, S., Skrutskie, M. F., 1989, AJ 97, 1451 Google Scholar
Van Winckel, H., 1999, this volume, p. 465 Google Scholar