Abstract
The main characteristics of the LBVs with “normal” S Dor-type outbursts are reviewed. At quiescence they are luminous (M Bol ≈ -9 to -10) OB supergiants (14 000 K ≲ T eff ≲ 30 000 K) occupying an inclined instability strip in the HRD. The most luminous S Dor variables are the hottest ones. During outburst dense envelopes are expelled of equivalent spectral type middle A to early F. S Dor variables occupy at maximum a vertical strip in the HRD at T ≈ 8000 K. The observed amplitudes in the visual range increase from 1 mag (e.g. R71; T eff = 14500 K at quiescence) to 2.5 mag (e.g. R127; T eff = 33000 K at quiescence). The existence of an amplitude-luminosity relation is suggested which can be used to derive extragalactic distances.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Appenzeller, I.: 1986, IAU Symposium 116p. 139
Appenzeller, I.: 1988, this volume
Appenzeller, I., Wolf, B.: 1982 ESO Workshop “The Most Massive Stars”, p. 131
Appenzeller, I., Wolf, B., Stahl, O.: 1987, “Instabilities in Luminous Early Type Stars”, p. 241
Davidson, K.: 1987, Astrophys J. 317, 760
Davidson, K.: 1988, this volume
Humphreys, R.M.: 1975, Astrophys. J 200, 426
Humphreys, R.M.: 1988, this volume
Humphreys, R.M., Davidson, K.: 1979, Astrophys J. 232, 409
Humphreys, R.M., Leitherer, C., Stahl, O., Wolf, B.: 1988a, Astron. Astrophys 203, 306
Humphreys, R.M., Stahl, O., Davidson, K., Wolf, B., Zickgraf, F.-J.: 1988, this volume Kudritzki
R.: 1988, this volume
Lamers, H.J.C.L.M.: 1986, “Instabilities in Luminous Early-Type Stars”, p. 99
Leitherer, C., Appenzeller, I., Klare, G., Lamers, H.J.C.L.M., Stahl, O., Waters, L.B.F.M., Wolf, B.: 1985, Astron. Astrophys 153, 168
Maeder, A.: 1982, Astron. Astrophys 105, 149
Maeder, A.: 1983, Astron. Astrophys 120, 113
Maeder, A., Meynet, G.: 1987, Astron. Astrophys 182, 243
Schmutz, W., Leitherer, C., Torres-Dodgen, A.V., Vogel, M., Conti, P.S., Ham an n, W.-R., Wessolowski, U.: 1988, this volume
Sharov, A.S.: 1975, IAU Symposium 67, p. 275
Stahl, O.: 1986, Astron. Astrophys 164, 321
Stahl, O.: 1988, this volume
Stahl, O., Wolf, B.: 1982, Astron. Astrophys 110, 272
Stahl, O., Wolf, B.: 1986, Astron. Astrophys 158, 371
Stahl, O., Wolf, B., de Groot, M., Leitherer, C.: 1985, Astron. Astrophys. Suppl. Ser 61, 237
Stahl, O., Wolf, B., Klare, G., Cassatella, A., Krautter, J., Persi, P., Ferrari-Toniolo, M.: 1983
Astron. Astrophys 127, 49
Stahl, O., Wolf, B., de Groot, M., Leitherer, C.: 1985, Astron. Astrophys. Suppl. Ser 61, 237
Stahl, O., Wolf, B., Zickgraf, F.-J.: 1987, Astron. Astrophys 184, 193
Sterken, C., 1988, this volume
van Genderen, A.M., Thé, P.S., Augusteijn, Th., Engelsmann, E.C., van der Grift, E.W., Prein, J.J., Remijn, R.L., Steeman, F.W.M., van Weeren, N.: 1988, Astron.Astrophys. Suppl. Ser 74, 453
Viotti, R., Altamore, A., Barylak, M., Cassatella, A., Gilmozzi, R., Rossi, C.: 1984, NASA Conf.
Publ. 2349, p. 231
Walborn, N.R.: 1977, Astrophys. J 215, 53
Walborn, N.R.: 1982, Astrophys. J 256, 452
Walborn, N.R.: 1988, this volume
Wolf, B.: 1986, IAU Symp. 122, p. 409
Wolf, B.: 1988, Astron. Astrophys submitted
Wolf, B., Appenzeller, I., Cassatella, A.: 1980, Astron. Astrophys 88, 15
Wolf, B., Appenzeller, I., Stahl, O.: 1981a, Astron. Astrophys 103, 94
Wolf, B., Stahl, O., de Groot, M.J.H., Sterken, C.: 1981b, Astron. Astrophys 99, 351
Wolf, B., Stahl, O., Seifert, W.: 1987, Astron. Astrophys 186, 182
Wolf, B., Stahl, O., Smolinski, J., Cassatella, A.: 1988, Astron. Astrophys Suppl. Ser. 74, 239
Wolf, B., Zickgraf, F.-J.: 1986, Astron. Astrophys 164, 435
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1989 Kluwer Academic Publishers
About this paper
Cite this paper
Wolf, B. (1989). “Normal” LBV Eruptions A La S Doradus. In: Davidson, K., Moffat, A.F.J., Lamers, H.J.G.L.M. (eds) Physics of Luminous Blue Variables. Astrophysics and Space Science Library, vol 157. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1031-7_10
Download citation
DOI: https://doi.org/10.1007/978-94-009-1031-7_10
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6955-7
Online ISBN: 978-94-009-1031-7
eBook Packages: Springer Book Archive