Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-25T16:56:56.579Z Has data issue: false hasContentIssue false
  • English
  • Français

The magnetic field of the nearest cool star A Paradigm for Stellar Activity

Published online by Cambridge University Press:  25 May 2016

Carolus J. Schrijver
Carolus J. Schrijver*
Affiliation:
Lockheed Palo Alto Research Laboratories (91-30/252) 3251 Hanover Street, Palo Alto, CA 94034–1191, U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Looking at the Sun forges the framework within which we try to interpret stellar observations. The stellar counterparts of spots, plages, flux tubes, chromospheres, coronae, etc., are readily invoked when attempting to interpret stellar data. This review discusses a selection of solar phenomena that are crucial to understand stellar atmospheric activity. Topics include the interaction of magnetic fields and flows, the relationships between fluxes from different temperature regimes in stellar atmospheres, the photospheric flux budget and its impact on the measurement of the dynamo strength, and the measurement of stellar differential rotation.

Type
Introduction: Setting the Stage
Information
Symposium - International Astronomical Union , Volume 176: Stellar Surface Structure , 1996 , pp. 1 - 16
Copyright
Copyright © Kluwer 1996 

References

Berger, T.E., and Title, A.M. (1995) On the dynamics of small–scale solar magnetic elements, ApJ. , in press CrossRefGoogle Scholar
Capelli, A., Cerruti–Sola, M., Pallavicini, R., Cheng, C.C. (1989) A comparison of solar and stellar ultraviolet spectra obtained with Skylab and IUE, Astron. Astrophys. , Vol. no. 213, pp. 226–244 Google Scholar
Castenmiller, M.J.M., Zwaan, C., van der Zalm, E.B.J. (1986) Sunspot nests. Manifestations of Sequences in Magnetic Activity, Solar Phys. , Vol. no. 105, pp. 237–256 CrossRefGoogle Scholar
Donahue, R.A. (1993) Surface Differential Rotation in a Sample of Cool Stars. , , Las Cruces, New Mexico.CrossRefGoogle Scholar
Donahue, R.A. and Keil, S.L. (1995) The solar surface differential rotation from disk–integrated chromospheric fluxes, Solar Phys. , Vol. no. 159, pp. 52–62 Google Scholar
van Driel–Gesztelyi, L., van der Zalm, E.B.J., and Zwaan, C. (1992) Active nests on the Sun, in The Solar Cycle , Harvey, K.L. (ed.). Astron. Soc. of the Pacific Conf. Series, Vol. 27, pp. 89–96, ASP, San Francisco.Google Scholar
Durney, B.R. (1995) On a Babcock–Leighton dynamo model with a deep–seated generating layer for the toroidal magnetic field, Solar Phys. , 160, pp. 213–235 CrossRefGoogle Scholar
Durney, B.R., de Young, D.S., and Roxburgh, I.W. (1993) On the generation of the large–scale and turbulent magnetic fields in solar–type stars, Solar Phys. , Vol. no. 144, pp. 207–225 Google Scholar
Golub, L. (1991) Very High Resolution Solar X–ray Imaging, in Mechanisms of Chromospheric and Coronal Heating , Ulmschneider, P., Priest, E.R., and Rosner, R. (eds.), Springer–Verlag. pp. 115–123 CrossRefGoogle Scholar
Harvey, K.L. (1993) Magnetic Bipoles on the Sun. , Google Scholar
Harvey, K.L., and Zwaan, C. (1993) Properties and emergence of bipolar active regions I. Size distribution and emergence frequency, Solar Phys. , Vol. no. 148, pp. 85 Google Scholar
Keller, C.U., Deubner, F.–L., Egger, U., Fleck, B., Povel, H.P. (1994) On the strength of solar intra-network fields, Astron. Astrophys. , Vol. no. 286, pp. 626–634 Google Scholar
O'Dell, M.A., Panagi, P., Hendry, M.A., Collier Cameron, A. (1995) New observational limits on dynamo saturation in young solar–type stars, A & A , 294, pp. 715 Google Scholar
Schrijver, C.J. (1988) Radiative fluxes from the outer atmosphere of a star like the Sun: a construction kit, Astron. Astrophys. , Vol. no. 189, pp. 163–172 Google Scholar
Schrijver, C.J. (1992) The basal and strong–field components of the solar atmosphere, Astron. Astrophys. , Vol. no. 258, pp. 507–520 Google Scholar
Schrijver, C.J. (1993) Relations between the photospheric magnetic field and the emission from the outer atmosphere of cool stars III. The chromospheric emission from individual flux tubes, Astron. Astrophys. , Vol. no. 269, pp. 395–402 Google Scholar
Schrijver, C.J. (1995) Basal heating in the atmospheres of cool stars; observational evidence and theoretical support, Astron. Astrophys. Rev. , Vol. no. 6, pp. 181–223 Google Scholar
Schrijver, C.J., Coté, J., Zwaan, C., Saar, S.H. (1989) Relations between the photospheric magnetic field and the emission from the outer atmosphere of cool stars. I. The solar Ca II K line core emission, Ap.J. , Vol. no. 337, pp. 964–976 Google Scholar
Schrijver, C.J., and Harvey, K.L. (1989) The distribution of solar magnetic fluxes and the nonlinearity of stellar flux–flux relations, ApJ. , Vol. no. 343, pp. 481–488 Google Scholar
Schrijver, C.J., Zwaan, C., Balke, A.C., Tarbell, T.D., Lawrence, J.K. (1992) Patterns in the photospheric magnetic field and percolation theory, Astron. Astrophys , Vol. no. 253, pp. L1–L4 Google Scholar
Schrijver, C.J., and Harvey, K.L. (1994) The photospheric magnetic flux budget, Sol. Phys. , Vol. no. 150, pp. 1–18 Google Scholar
Schrijver, C.J., Shine, R.A., Hagenaar, H.J., et al. (1996) Dynamics of the chromospheric network I. Mobility, dispersal, and diffusion coefficients, submitted to ApJ. CrossRefGoogle Scholar
Sheeley, N.R. (1992) The flux transport model and its implications, in The solar cycle. A.S.P. Conf. Series, Vol. 27, Astron. Soc. of the Pac., San Francisco. pp. 1–13 Google Scholar
Snodgrass, H.B. (1992) Synoptic observations of large scale velocity patterns on the Sun, in The solar cycle , Harvey, K.L. (ed.), Astron. Soc. of the Pac. Conf. Series Vol. no. 27, pp. 205–240 Google Scholar
Solanki, S.K., Steiner, O., and Uitenbroek, H. (1991) Two–dimensional models of the solar chromosphere, Astron. Astrophys. , Vol. no. 250, pp. 220 Google Scholar
Spruit, H.C., Nordlund, Å, Title, A.M. (1990) Solar Convection, ARAA , Vol. no. 28, pp. 263–301 Google Scholar
Steiner, O., Knölker, M., and Schüssler, M. (1994) Dynamic interaction of convection with magnetic flux sheets: first results of a new MHD code, in Solar Surface Magnetism. Rutten, R.J. and Schrijver, C.J. (eds.), Kluwer Academic Publishers. pp. 441–470 CrossRefGoogle Scholar
Ulmschneider, P., Priest, E.R., and Rosner, R. (1991) editors of Mechanisms of Chromospheric and Coronal Heating. Springer–Verlag.CrossRefGoogle Scholar
Wang, Y.–M., and Sheeley, N.R. (1994) The rotation of photospheric magnetic fields: a random walk transport model, ApJ , Vol. no. 430, pp. 399–412 CrossRefGoogle Scholar
Zwaan, C. (1987) Elements and patterns in the solar magnetic field, ARAA , Vol. no. 25, pp. 83–111 Google Scholar