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Observed instabilities in OB and Wolf-Rayet stars

Published online by Cambridge University Press:  26 May 2016

Sergey V. Marchenko
Sergey V. Marchenko*
Affiliation:
Department of Physics and Astronomy, Western Kentucky University, 1 Big Red Way, Bowling Green, KY 42101-3576, USA

Abstract

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A wealth of recent observations confirms that the fast, dense winds of OB and Wolf-Rayet (WR) stars are highly structured, with the structures resulting from the inherently unstable nature of a radiatively-driven wind, as well as being triggered from the underlying photosphere. This review mainly addresses variability patterns observed in the winds and photospheric regions of presumably single stars. Schematically we divide the detectable structures into two broad categories: small-scale and large-scale inhomogeneities, with the former mainly of a stochastic behavior/origin, and the latter frequently demonstrating a recurrent, even periodic, behavior. We then discuss the nature and nurture of instabilities, highlighting phenomenological similarities and differences in the variability of OB and WR stars.

Type
Part 2. Interiors of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 296 - 307
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Balona, L.A., Egan, J., Marang, F. 1989, MNRAS 240, 103.Google Scholar
Berghöfer, T.W., Schmitt, J.H.M.M., Cassinelli, J.P. 1996, A&AS 118, 481.Google Scholar
Berghöfer, T.W., Schmitt, J.H.M.M., Danner, R., Cassinelli, J.P. 1997, A&A 322, 167.Google Scholar
Bieging, J.H., Abbott, D.C., Churchwell, E.B. 1989, ApJ 340, 518.Google Scholar
Bjorkman, K.S. 1994, in: Moffat, A.F.J., Owocki, S. P., Fullerton, A. W. & St-Louis, N. (eds.), Instability and Variability of Hot-Star Winds, Ap&SS 221, 335.Google Scholar
Bratschi, P., Blecha, A. 1996, A&A 313, 537.Google Scholar
Brown, J.C. 1994, in: Moffat, A.F.J., Owocki, S. P., Fullerton, A. W. & St-Louis, N. (eds.), Instability and Variability of Hot-Star Winds, Ap&SS 221, 1Google Scholar
Brown, J.C., Richardson, L.L., Antokhin, I., et al. 1995, A&A 295, 727.Google Scholar
Chapman, J.M., Leitherer, C., Koribalski, B., et al. 1999, ApJ 518, 890.CrossRefGoogle Scholar
Cherchneff, I., Le Teuff, Y.H., Williams, P.M., Tielens, A.G.G.M. 2000, A&A 357, 572.Google Scholar
Contreras, M.E., Rodriguez, L.F., Tapia, M., et al. 1997, ApJ (Letters) 488, L153.Google Scholar
Cranmer, S.R., Owocki, S.P. 1996, ApJ 462, 469.CrossRefGoogle Scholar
de Jong, J.A., Henrichs, H.F., Kaper, L., et al. 2001, A&A 368, 601.Google Scholar
Donati, J.-F., Babel, J., Harries, T.J., et al. 2002, MNRAS 333, 55.Google Scholar
Donati, J.-F., Wade, G.A., Babel, J., et al. 2001, MNRAS 326, 1265.Google Scholar
Dougherty, S.M., Williams, P.M. 2000, MNRAS 319, 1005.Google Scholar
Drissen, L., Robert, C., Moffat, A.F.J. 1992, ApJ 386, 288.Google Scholar
Duijsens, M.F.J., van der Hucht, K.A., van Genderen, A.M., et al. 1996, A&AS 119, 37.Google Scholar
Eversberg, T., Lépine, S., Moffat, A.F.J. 1998, ApJ 494, 799.CrossRefGoogle Scholar
Exter, K.M., Watson, S.K., Barlow, M.J., Davis, R.J. 2002, MNRAS 333, 715.CrossRefGoogle Scholar
Feldmeier, A. 1999, in: Wolf, B., Stahl, O. & Fullerton, A.W. (eds.), Variable and Non-spherical Stellar Winds in Luminous Hot Stars (Berlin: Springer), Lecture Notes in Physics 523, 285.Google Scholar
Feldmeier, A., Puls, J., Pauldrach, A.W.A. 1997, A&A 322, 878.Google Scholar
Fox, G.K., Henrichs, H.F. 1994, MNRAS 266, 945.Google Scholar
Fullerton, A.W., Gies, D.R., Bolton, C.T. 1996, ApJS 103, 475.CrossRefGoogle Scholar
Fullerton, A.W., Massa, D.L., Prinja, R.K., et al. 1997, A&A 327, 699.Google Scholar
van Genderen, A.M. 1989, A&A 208, 135.Google Scholar
van Genderen, A.M., van der Hucht, K.A., Bakker, P.R. 1989, A&A 224, 125.Google Scholar
Glatzel, W., Kiriakidis, M., Chernigovskii, S., Fricke, K.J. 1999, MNRAS 303, 116.Google Scholar
Grosdidier, Y., Moffat, A.F.J., Joncas, G., Acker, A. 1998, ApJ (Letters) 506, L127.Google Scholar
Hamann, W.-R., Brown, J.C., Feldmeier, A., Oskinova, L.M. 2001, A&A 378, 946.Google Scholar
Hamann, W.-R., Koesterke, L. 1998, A&A 335, 1003.Google Scholar
Harries, T.J. 2000, MNRAS 315, 722.Google Scholar
Hayes, D.P. 1984, AJ 89, 1219.Google Scholar
Heap, S. 1994, in: Moffat, A.F.J., Owocki, S. P., Fullerton, A. W. & St-Louis, N. (eds.), Instability and Variability of Hot-Star Winds, Ap&SS 221, 91.Google Scholar
Henrichs, H.F. 1999, in: Wolf, B., Stahl, O. & Fullerton, A.W. (eds.), Variable and Non-spherical Stellar Winds in Luminous Hot Stars (Berlin: Springer), Lecture Notes in Physics 523, 305.Google Scholar
Hillier, D.J., Miller, D.L. 1999, ApJ 519, 354.Google Scholar
Howarth, I.D., Prinja, R.K. 1989, ApJS 69, 527.Google Scholar
van der Hucht, K.A., Williams, P.M., Spoelstra, T.A.Th., de Bruyn, A.G. 1992, in: Drissen, L., Leitherer, C. & Nota, A. (eds.), Non-isotropic and Variable Outflows from Stars, ASP-CS 22, 253.Google Scholar
Ignace, R., Gayley, K.G. 2002, ApJ 568, 954.CrossRefGoogle Scholar
Ignace, R., Oskinova, L.M. 1999, A&A (Letters) 348, L45.Google Scholar
Israelian, G., Chentsov, E., Musaev, F. 1997, MNRAS 290, 521.Google Scholar
Kaper, L. 1999, in: Wolf, B., Stahl, O. & Fullerton, A.W. (eds.), Variable and Non-spherical Stellar Winds in Luminous Hot Stars (Berlin: Springer), Lecture Notes in Physics 523, 193.Google Scholar
Kaper, L., Henrichs, H.F., Nichols, J.S., Telting, J.H. 1999, A&A 344, 231.Google Scholar
Kato, T., Haseda, K., Yamaoka, H., Takamizawa, K. 2002a, PASJ (Letters) 54, L51.Google Scholar
Kato, T., Haseda, K., Takamizawa, K., Yamaoka, H. 2002b A&A (Letters) 393, L69.Google Scholar
Kaufer, A., Stahl, O., Wolf, B., et al. 1996, A&A 314, 599.Google Scholar
Kaufer, A., Prinja, R.K., Stahl, O. 2002, A&A 382, 1032.Google Scholar
Koesterke, L., Hamann, W.-R., Urrutia, T. 2001, A&A 379, 224.Google Scholar
Kudritzki, R.P., Palsa, R., Feldmeier, A., et al. 1996, in: Zimmermann, H.U., Trümper, J.E. & Yorke, H. (eds.), Röntgenstrahlung from the Universe, MPE Report 263, 9.Google Scholar
Kurosawa, R., Hillier, D.J., Pittard, J.M. 2002, A&A 388, 957.Google Scholar
Lamers, H., Vink, J.S., de Koter, A., Cassinelli, J.P. 1999, in: Wolf, B., Stahl, O. & Fullerton, A.W. (eds.), Variable and Non-spherical Stellar Winds in Luminous Hot Stars (Berlin: Springer), Lecture Notes in Physics 523, 159.Google Scholar
Lépine, S., Moffat, A.F.J. 1999, ApJ 514, 909.Google Scholar
Lépine, S., Moffat, A.F.J., St-Louis, N., et al. 2000, AJ 120, 3201.Google Scholar
Lucy, L.B. 1983, ApJ 274, 372.Google Scholar
Lupie, O.L., Nordsieck, K.H. 1987, AJ 92, 214.Google Scholar
MacFarlane, J.J., Cohen, D.H., Wang, P. 1994, ApJ 437, 351.Google Scholar
Marchenko, S.V., Antokhin, I.I., Bertrand, J.-F., et al. 1994, AJ 108, 678.Google Scholar
Marchenko, S.V., Moffat, A.F.J., Eversberg, T., et al. 1998a, MNRAS 294, 642.Google Scholar
Marchenko, S.V., Moffat, A.F.J., van der Hucht, K.A., et al. 1998b, A&A 331, 1022.Google Scholar
Marchenko, S.V., Arias, J., Barbá, R., et al. 2000, AJ 120, 2101.CrossRefGoogle Scholar
Massa, D., Fullerton, A.W., Nichols, J.S., et al. 1995, ApJ (Letters) 452, L53.Google Scholar
Massa, D., Fullerton, A.W., Prinja, R.K. 1998, in: Kaper, L. & Fullerton, A.W. (eds.), Cyclical Variability in Stellar Winds (Berlin: Springer), p. 121.Google Scholar
Miller, N.A., Cassinelli, J.P., Waldron, W.L., et al. 2002, ApJ 577, 951.Google Scholar
Moffat, A.F.J. 1994, in: Moffat, A.F.J., Owocki, S. P., Fullerton, A.W. & St-Louis, N. (eds.), Instability and Variability of Hot-Star Winds, Ap&SS 221, 467.Google Scholar
Morel, T., St-Louis, N., Marchenko, S.V. 1997, ApJ 482, 470.CrossRefGoogle Scholar
Nota, A. 1999, in: Wolf, B., Stahl, O. & Fullerton, A.W. (eds.), Variable and Non-spherical Stellar Winds in Luminous Hot Stars (Berlin: Springer), Lecture Notes in Physics 523, 159.Google Scholar
Nugis, T., Crowther, P.A., Willis, A.J. 1998, A&A 333, 956.Google Scholar
Oskinova, L.M., Ignace, R., Brown, J.C., Cassinelli, J.P. 2001, A&A 373, 1009.Google Scholar
Owocki, S.P. 1998, in: Kaper, L. & Fullerton, A.W. (eds.), Cyclical Variability in Stellar Winds (Berlin: Springer), p. 325.Google Scholar
Owocki, S.P. 1999, in: Wolf, B., Stahl, O. & Fullerton, A.W. (eds.), Variable and Non-spherical Stellar Winds in Luminous Hot Stars (Berlin: Springer), Lecture Notes in Physics 523, 295.Google Scholar
Owocki, S.P., Cohen, D.H. 1999, ApJ 520, 833.Google Scholar
Owocki, S.P., Puls, J. 1999, ApJ 510, 355.Google Scholar
Owocki, S.P., Rybicki, G.B. 1985, ApJ 299, 265.CrossRefGoogle Scholar
Prinja, R.K., Barlow, M.J., Howarth, I.D. 1990, ApJ 361, 607.Google Scholar
Prinja, R.K., Smith, L.J. 1992, A&A 266, 377.Google Scholar
Puls, J., Springmann, U., Owocki, S. 1998, in: Kaper, L. & Fullerton, A.W. (eds.), Cyclical Variability in Stellar Winds (Berlin: Springer), p. 389.Google Scholar
Reid, A.H.N., Howarth, I.D. 1996, A&A 311, 616.Google Scholar
Richardson, L.L., Brown, J.C., Simmons, J.F.L. 1996, A&A 306, 519.Google Scholar
Rivinius, Th., Stahl, O., Wolf, B., et al. 1997, A&A 318, 819.Google Scholar
Robert, C. 1994, in: Moffat, A.F.J., Owocki, S. P., Fullerton, A. W. & St-Louis, N. (eds.), Instability and Variability of Hot-Star Winds, Ap&SS 221, 137.Google Scholar
Robert, C., Moffat, A.F.J., Bastien, P., et al. 1989, ApJ 347, 1034.Google Scholar
Rodrigues, C.V. Magalhães, A.M. 2000, ApJ 540, 412.Google Scholar
Runacres, M.C., Owocki, S.P. 2002, A&A 381, 1015.Google Scholar
Rybicki, G.B., Owocki, S.P., Castor, J.I. 1990, ApJ 349, 274.Google Scholar
Schulte-Ladbeck, R.E. 1994, in: Moffat, A.F.J., Owocki, S. P., Fullerton, A. W. & St-Louis, N. (eds.), Instability and Variability of Hot-Star Winds, Ap&SS 221, 347.Google Scholar
Setia Gunawan, D.Y.A., de Bruyn, A.G., van der Hucht, K.A., Williams, P.M. 2000, A&A 356, 676.Google Scholar
Setia Gunawan, D.Y.A., de Bruyn, A.G., van der Hucht, K.A., Williams, P.M. 2001, A&A 368, 484.Google Scholar
St-Louis, N. 1992, in: Drissen, L., Leitherer, C. & Nota, A. (eds.), Non-isotropic and Variable Outflows from Stars, ASP-CS 22, 229.Google Scholar
St-Louis, N., Dalton, M.J., Marchenko, S.V., et al. 1995, ApJ (Letters) 452, L57.Google Scholar
Veen, P.M., van Genderen, A.M., van der Hucht, K.A., et al. 1998, A&A 329, 199.Google Scholar
Veen, P.M., van Genderen, A.M., van der Hucht, K.A., et al. 2002a, A&A 385, 585.Google Scholar
Veen, P.M., van Genderen, A.M., Crowther, P.A., van der Hucht, K.A. 2002b, A&A 385, 600.Google Scholar
Veen, P.M., van Genderen, A.M., van der Hucht, K.A. 2002c, A&A 385, 619.Google Scholar
Walborn, N.R., Lennon, D.J., Haser, S.M., et al. 1995, PASP 107, 104.Google Scholar
Wessolowski, U. 1996, in: Zimmermann, H.U., Trümper, J.E. & Yorke, H. (eds.), Röntgenstrahlung from the Universe, MPE Report 263, 75.Google Scholar
White, R.L., Chen, W. 1994, in: Moffat, A.F.J., Owocki, S. P., Fullerton, A. W. & St-Louis, N. (eds.), Instability and Variability of Hot-Star Winds, Ap&SS 221, 295.Google Scholar
Williams, P.M., van der Hucht, K.A., Thé, P.S. 1987, A&A 182, 91.Google Scholar
Williams, P.M., van der Hucht, K.A., Pollock, A.M.T., et al. 1990, MNRAS 243, 662.Google Scholar
Williams, P.M., van der Hucht, K.A., Spoelstra, T.A.Th. 1994, A&A 291, 805.Google Scholar
Zubko, V.G. 1998, MNRAS 295, 109.Google Scholar