Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-25T19:28:33.320Z Has data issue: false hasContentIssue false
  • English
  • Français

Coronal loops and their modeling

Published online by Cambridge University Press:  25 May 2016

G.H.J. Van Den Oord  and
F. Zuccarello
G.H.J. Van Den Oord
Affiliation:
Sterrekundig Instituut Utrecht P.O. Box 80.000, 3508 TA Utrecht, The Netherlands
F. Zuccarello
Affiliation:
Istituto di Astronomia dell'Università, Città Universitaria, Viale A. Doria, I-95125 Catania, Italy

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.

We discuss the theory of quasi-static coronal loops, introducing a phase plane representation to study loop solutions independently of specific boundary conditions. Emphasis is put on the effects of loop expansion, heat input and gravitational stratification on the differential emission measure, and on the intrinsic limitations of spectroscopic observations for deriving loop parameters. We show that certain classes of published loop solutions cannot actually exist. For expanding loops new classes of loop solutions, with rather special properties, are presented. Special attention is paid to loops in binary systems and on rapidly rotating stars.

Type
Session IV: “Outer Atmospheric Structure”
Information
Symposium - International Astronomical Union , Volume 176: Stellar Surface Structure , 1996 , pp. 433 - 448
Copyright
Copyright © Kluwer 1996 

References

Bray, R.J., Cram, L.E., Durrant, C.J., Loughhead, R.E. (1991) Plasma loops in the solar corona. Cambridge Astroph. Ser., Vol. no. 18, Cambridge University Press CrossRefGoogle Scholar
Clark, B.G., Kellermann, K.I., Shaffer, D.B. (1975) ApJ , 198, L123 Google Scholar
Clark, T.A. et al. (1976) ApJ , 206, L107 Google Scholar
Collier Cameron, A. (1988) MNRAS , 233, 235 Google Scholar
Craig, I.J.D., McClymont, A.N., Underwood, J.H. (1978) A&A , 70, 1 Google Scholar
Hood, A.W., Priest, E.R. (1979) A&A , 77, 233 Google Scholar
Hood, A.W., Anzer, U. (1988) Solar Phys., 115, 61 Google Scholar
Kuin, N.P.M., Martens, P.C.H., (1982) A&A , 108, L1 Google Scholar
Landini, M., Monsignori Fossi, B.C. (1981) A&A , 102, 391 Google Scholar
Lestrade, J.F., et al. (1984) ApJ , 279, 184 CrossRefGoogle Scholar
Mutel, R.L., Doiron, D.J., Lestrade, J.F., Phillips, R.B. (1984) ApJ , 278, 220 Google Scholar
Pres, P., Siarkowski, M., Sylwester, J. (1995) MNRAS , 275, 43 CrossRefGoogle Scholar
Rosner, R., Tucker, W.H., Vaiana, G.S. (1978) ApJ , 220, 643 (RTV) Google Scholar
Schrijver, C.J., (1989) ApJ , 341, 484 Google Scholar
Serio, S., Peres, G., Vaiana, G.S., Golub, L., Rosner, R. (1981) ApJ , 243, 288 Google Scholar
Siarkowski, M (1992) MNRAS , 259, 453 Google Scholar
Spitzer, L. (1962) Physics of fully ionized gasses. Interscience, New York Google Scholar
Stern, R.A., Uchida, Y., Tsuneta, S., Nagase, F. (1992) ApJ , 400, 321 Google Scholar
van den Oord, G.H.J., Barstow, M.A. (1988) A&A , 207, 89 Google Scholar
van den Oord, G.H.J., Mewe, R. (1989) A&A , 213, 245 Google Scholar
van den Oord, G.H.J., Zuccarello, F. (1996) A&A , to be submitted (VDOZ) Google Scholar
Vesecky, J.F., Antiochos, S.K., Underwood, J.H. (1979) ApJ , 233, 987 (VAU) Google Scholar
Walter, F.M., Gibson, D.M., Basri, G.S. (1983) ApJ , 267, 665 CrossRefGoogle Scholar
White, N.E., et al. (1986) ApJ , 301, 262 CrossRefGoogle Scholar
White, N.E., Parmar, A.N., Sweeney, M.A., Culhane, J.L. (1987) MNRAS , 227, 545 Google Scholar
White, N.E., Shafer, R.A., Horne, K., Parmar, A.N., Culhane, J.L. (1990) ApJ , 350, 776 Google Scholar