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Comparison of Stellar Oscillations and Activity Data to Infer Internal Rotation

Published online by Cambridge University Press:  12 April 2016

Gaetano Belvedere
Gaetano Belvedere*
Affiliation:
Istituto di Astronomia, Università di Catania, Italy

Abstract

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Recently it has beeen suggested that the latitude distribution of the main surface features of solar activity is intimately related to the angular velocity profile inside the Sun through the working of a MHD dynamo in the boundary layer between the convective and the radiative zones (Belvedere et al. 1991).

Although the present observational capabilities are not very encouraging, here we want to point out, in the framework of the analogy to the Sun (solar-stellar connection), that space observations of surface distribution and latitudinal migration of active regions on stellar surfaces, which could be carried out in this decade with more sophisticated techniques, may conversely allow us to infer the rotation profile, and consequently the angular momentum distribution, in stellar interiors. This methodology may in principle be considered alternate or complementary to the classical one based on observation of acoustic oscillations.

Type
VII. Activity, a break of spherical symmetry
Information
International Astronomical Union Colloquium , Volume 137: Inside the Stars , 1993 , pp. 675 - 678
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Baliunas, S.L., Vaughan, A.H.: 1985, Ann. Rev. Astron. Astrophys. 23, 379 Google Scholar
Belvedere, G.: 1985, Solar Phys. 100, 363 Google Scholar
Belvedere, G.: 1990, in: Berthomieu, G., Cribier, M. (eds.) Proc. IAU Coll. 121, Inside the Sun, Kluwer, Dordrecht, p. 371 Google Scholar
Belvedere, G., Proctor, M.R.E., Lanzafame, G.: 1991, Nature 350, 481 Google Scholar
Brown, T.M., Christensen-Dalsgaard, J., Dziembowski, W., Goode, P.R., Gough, D.O., Morrow, C.A.: 1989, Astrophys. J. 343, 526 Google Scholar
Donati, J.F., Semel, M., Praderie, F.: 1989, Astron. Astrophys. 225, 467 Google Scholar
Dziembowski, W.A., Goode, P.R., Libbrecht, K.G.: 1989, Astrophys. J. 337, L53 Google Scholar
Glatzmaier, G.A.: 1985a, Geophys. Astrophys. Fluid Dyn. 31, 137 Google Scholar
Glatzmaier, G.A.: 1985b, Astrophys. J. 291, 300 Google Scholar
Hartmann, L.W., Noyes, R.W.: 1987, Ann. Rev. Astron. Astrophys. 25, 271 Google Scholar
Harvey, J.W.: 1988, in Rolfe, E.J. (ed.), Seismology of the Sun and Sun-like Stars, ESA SP-286, p. 55 Google Scholar
Lemaire, P., Appourchaux, T., Catala, C., Catalano, S., Frandsen, S., Jones, A., Weiss, W.: 1991, in Catalano, S. & Stauffer, J. (eds.), Proc. Nato ARW, Angular Momentum Evolution of Young Stars, Kluwer, Dordrecht, p.397 Google Scholar
Libbrecht, K.G.: 1989, Astrophys. J. 336, 1092 Google Scholar
Morrow, C.A.: 1988, in Rolfe, E.J. (ed.), Seismology of the Sun and Sun-like Stars, ESA SP-286, p. 91 Google Scholar
Noyes, R.W.: 1985, Solar Phys. 100, 385 Google Scholar
Parker, E.N.: 1955, Astrophys. J. 122, 293 Google Scholar
Rodonò, M.: 1987, in Schroter, E.H. & Schussler, M. (eds.) Solar and Stellar Physics, Lecture Notes in Physics 292,39 Google Scholar
Rodonò, M. et al.: 1986, Astron. Astrophys. 165, 135 Google Scholar
Rodonò, M., Tanzi, E.G., Boyarchuk, A.A., Steshenko, N.V.: 1991, in Catalano, S. Stauffer, J. (eds.), Proc. Nato ARW, Angular Momentum Evolution of Young Stars, Kluwer, Dordrecht, p. 405 CrossRefGoogle Scholar
Semel, M., 1989: Astron. Astrophys. 225, 456 Google Scholar
Vogt, S.S., Hatzes, A.P.: 1991, in Tuominen, I., Moss, D., Rudiger, G. (eds), Proc. IAU Coll. 130, The Sun and Cool Stars: Activity, Magnetism, Dynamos, Lecture Notes in Physics 380 297 Google Scholar
Vogt, S.S., Penrod, G.D., Hatzes, A.P.: 1987, Astrophys. J. 321, 496 Google Scholar
Yoshimura, H.: 1975a Astrophys. J. 201, 740 Google Scholar
Yoshimura, H. 1975b Astrophys. J. 29, 467 Google Scholar