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Reports from IAU Commission 12

  • Christoph U. Keller
  • Tim Brown
  • J. C. del Toro Iniesta
  • Rob J. Rutten
  • Sami K. Solanki
  • Rainer Hammer
Part of the International Council of Scientific Unions / International Astronomical Union / Union Astronomique Internationale book series (IAUT, volume 23A)

Abstract

Spatial structures in the solar photosphere are likely to be seen down to scales of the order of the photon mean free path, which is about 70 km in the lower photosphere. This scale corresponds to an angle of 0″.1 at disk center. Structures associated with magnetic fields may be expected on even smaller scales. Existing solar telescopes typically have diameters of slightly less than one meter. Hence, even in the visible part of the spectrum, the scales of solar structures extend out to the diffraction limit of current solar telescopes. Therefore, the achievable spatial resolution is limited by turbulence in the Earth’s atmosphere (seeing). This has led to the development of various techniques to overcome this resolution limit and achieve diffraction-limited resolution. This report covers selected highlights and recent work done in the context of high-resolution techniques published in the period from July 1, 1993 to June 30, 1996. Due to the lack of space the report remains necessarily incomplete, and I apologize to all the Authors of important contributions that are not cited here. This review does not cover space and balloon-borne instruments that try to achieve high spatial resolution by observing from above the Earth’s atmosphere. Recent work on ground-based high-resolution techniques has been collected in the proceedings of the 13th Sacramento Peak Summer Workshop on Real Time and Post Facto Solar Image Correction (Radick 1993).

Keywords

Solar Wind Coronal Hole Flux Tube Magnetic Element Alfven Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Acton D.S., Dunn R.B., 1993, SPIE 1920, 348ADSCrossRefGoogle Scholar
  2. Acton D.S., Soltau D., Schmidt W., 1996, A&A 309, 661ADSGoogle Scholar
  3. Ballesteros E., Collados M., Bonet J.A., Lorenzo F., Viera T., Reyes M., Rodrígez Hidalgo I., 1996, A&ASS 115, 353ADSGoogle Scholar
  4. Berger T.E., Schrijver C.J., Shine R.A., Tarbell T.D., Title A.M., Scharmer G., 1995, ApJ 454, 531ADSCrossRefGoogle Scholar
  5. Bonet J.A., Sobotka M., Vázquez M., 1995, A&A 296. 241ADSGoogle Scholar
  6. Christou J.C., Hege E.K., Jefferies S.M., Keller C.U., 1994, SPIE 2200, 433ADSCrossRefGoogle Scholar
  7. Denker C, de Boer C.R., Volkmer R., Kneer F., 1995, A&A 296, 567ADSGoogle Scholar
  8. Keller C.U., Johannesson A., 1995, A&ASS 110, 565ADSGoogle Scholar
  9. Löfdahl M., Scharmer G.B., 1994, A&ASS 107, 243ADSGoogle Scholar
  10. Miura N, Baba N., 1995, J. Opt. Soc. Am. A 12, 1858ADSCrossRefGoogle Scholar
  11. Paxman R.G., Seidin J.H., 1993, SPIE 2029, 287ADSCrossRefGoogle Scholar
  12. Radick R.R., 1993, Real Time and Post Facto Solar Image Correction, Proc. of the 13th NSO/Sacramento Peak Summer WorkshopGoogle Scholar
  13. Restaino S.R., 1993. In: Radick R.R. (ed.) Real Time and Post Facto Solar Image Correction, Proc. of the 13th NSO/Sacramento Peak Summer Workshop, 105Google Scholar
  14. Rimmele T., Kentischer T., Wiborg P.H., 1993. In: Radick R.R. (ed.) Real Time and Post Facto Solar Image Correction, Proc. of the 13th NSO/Sacramento Peak Summer Workshop, 24Google Scholar
  15. Seldin J.H., Paxman R.G., 1994, SPIE 2302, 268ADSCrossRefGoogle Scholar
  16. Sobotka M., Bonet J.A., Vázquez M., Hanslmeier A., 1995, ApJ 447, L133ADSCrossRefGoogle Scholar
  17. Strohbehn, K., Rust, D. M., Andreou, A. G., JenXXns, R. E., 1993. In: Radick R.R. (ed.) Real Time and Post Facto Solar Image Correction, Proc. of the 13th NSO/Sacramento Peak Summer Workshop, 32Google Scholar
  18. Toner C.G., Jefferies S.M., 1994, BAAS 26, 1377ADSGoogle Scholar
  19. von der Luhe O., 1994, A&A 281, 889ADSGoogle Scholar
  20. Walton S.R., Preminger D.G., Toner C.G., 1996, BAAS 28, 875ADSGoogle Scholar
  21. Williams W.E., Toner C, Hill F., 1995. In: Ulrich R.K., Rhodes E.J., Däppen W. (eds.), GONG’ 94: Helio-and Asteroseismology from the Earth and Space, ASP Conf. Series 76, 500Google Scholar

References

  1. Appourchaux, T., Toutain, T., Telljohann, U., Jiménez, A., Rabello-Soares, M.C., Anderson, B.N., Jones, A.R. 1995, Astron. Astrophys. 294, L13ADSGoogle Scholar
  2. Bachmann, K.T., Duvall, T.L., Jr., Harvey, J.W., Hill, F. 1995, Astrophys. J. 443, 837ADSCrossRefGoogle Scholar
  3. Basu, S., Christensen-Dalsgaard, J., Schou, J., Tomczyk, S., 1996, Astrophys. J. 460, 1064ADSCrossRefGoogle Scholar
  4. Bogdan, T.J., Braun, D.C. 1995, in Fourth SOHO Workshop Helioseismology, ESA SP-376, p. 31Google Scholar
  5. Braun, D.C. 1995, Astrophys. J. 451, 859ADSCrossRefGoogle Scholar
  6. Cally, P.S., Bogdan, T.J., Zweibel, E.G., 1994, Astrophys. J. 437, 505ADSCrossRefGoogle Scholar
  7. Chou, D.-Y., Sun, M.-T., Huang, T.-Y., Jimenez, A., Lai, S.-P., et al. 1995, Solar Phys. 160, 237ADSCrossRefGoogle Scholar
  8. Duvall, T.L., Jr., Jefferies, S.M., Harvey, J.W., Pomerantz, M.A. 1993, Nature 362, 430ADSCrossRefGoogle Scholar
  9. Duvall, T.L., Jr., D’Silva, S., Jefferies, S.M., Harvey, J.W., Schou, J., 1996, Nature 379, 235ADSCrossRefGoogle Scholar
  10. Fleck, B., Domingo, V., Poland, A. (eds), 1995, The SOHO Mission, Solar Phys. 162 Google Scholar
  11. Gough, D.O., Kosovichev, A.G., Toomre, J., Anderson, E., Antia, H.M. et al. 1996a, Science 272, 1296ADSCrossRefGoogle Scholar
  12. Gough, D.O., Leibacher, J.W., Scherrer, P.H, Toome, J., 1996b, Science 272, 1281ADSCrossRefGoogle Scholar
  13. Hindman, B.W., Jain, R., Zweibel, E.G. 1996, Astrophys. J. (submitted)Google Scholar
  14. Hoeksema, J.T., Domingo, V., Fleck, B., Battrick, B. (eds.) 1995, Fourth SOHO Workshop Helioseismology, ESA SP-376Google Scholar
  15. Jain, R., Hindman, B.W., Zweibel, E.G., 1996, Astrophys. J. 464, 476ADSCrossRefGoogle Scholar
  16. Kosovichev, A.G., Duvall, T.L. Jr., Scherrer, P.H., 1996 Bull. Am. Astr. Soc. 28, 878ADSGoogle Scholar
  17. Pinsonneault, M.H., Kawaler, S.D., Sofia, S., Demarque, P., 1989, Astrophys. J. 338, 424ADSCrossRefGoogle Scholar
  18. Thompson, M.J., Toomre, J., Anderson, E.R., Antia, H.M., Berthomieu, G., et al. 1996, Science 272, 1300ADSCrossRefGoogle Scholar
  19. Tomczyk, S., Schou, J., Thompson, M.J., 1995a, Astrophys. J. 488, L57ADSGoogle Scholar
  20. Tomczyk, S., Streander, K., Card, G., Elmore, D., Hull, H., Cacciani, A., 1995b, Sol. Phys. 159, 1ADSCrossRefGoogle Scholar
  21. Toutain, T., Kosovichev, A.G. 1994, Astron. Astrophys. 284, 265ADSGoogle Scholar
  22. Ulrich, R.K., Rhodes, E.J., Däppen, W. (eds), 1994, GONG’ 94: Helio-and Asteroseismology from the Earth and Space, Astron. Soc. Pacific Conference Series v. 76Google Scholar

References

  1. I. Infrared Solar Physics, eds. D.M. Rabin, J.T. Jefferies, & C. Lindscy, KAP.Google Scholar
  2. II. Solar Surface Magnetism, eds. R.J. Rutten & C.J. Schrijver, KAP.Google Scholar
  3. Adams, M., Solanki, S.K., Hagyard, M., Moore, R.L. 1993, Sol. Phys., 148, 201.ADSCrossRefGoogle Scholar
  4. Balthasar, H., Schmidt, W. 1993, A&A, 279, 243.ADSGoogle Scholar
  5. Bellot Rubio, L.R., Ruiz Cobo, B., Collados, M. 1996, A&A, 306, 960.ADSGoogle Scholar
  6. Briand, C., Solanki, S.K. 1995, A&A, 299, 596.ADSGoogle Scholar
  7. Bruls, J.H.M.J., Solanki, S.K., Rutten, R.J., Carlsson, M. 1995, A&A, 293, 225.ADSGoogle Scholar
  8. Caccin, B., Gomez, M.T., Severino, G. 1993, A&A, 276, 219.ADSGoogle Scholar
  9. Carlsson, M., Rutten, R.J. 1994, I, p.341.Google Scholar
  10. Collados, M., Martinez Pillet, V., Ruiz Cobo, B., del Toro Iniesta, J.C., Vázquez, M. 1994, A&A, 291, 622.ADSGoogle Scholar
  11. Degenhardt, D. 1993, A&A, 277, 235.ADSGoogle Scholar
  12. Degenhardt, D., Lites, B.W. 1993a, ApJ, 404, 383.ADSCrossRefGoogle Scholar
  13. Degenhardt, D., Lites, B.W. 1993b, ApJ, 416, 875.ADSCrossRefGoogle Scholar
  14. Degenhardt, D., Wiehr, E. 1994a, A&A, 287, 620.ADSGoogle Scholar
  15. Degenhardt, D., Wiehr, E. 1994b, A&A, 287, 625.ADSGoogle Scholar
  16. Grossmann-Doerth, U. 1994, A&A, 285, 1012.ADSGoogle Scholar
  17. Grossmann-Doerth, U., Knölker, M., Schüssler, M., Solanki, S.K. 1994, A&A, 285, 648.ADSGoogle Scholar
  18. Gu, Y., Lindsey, C., Jefferies, J.T. 1995, ApJ, 450, 318.ADSCrossRefGoogle Scholar
  19. Hanslmeier, A., Nesis, A., Mattig, W. 1993, A&A, 270, 516.ADSGoogle Scholar
  20. Hanslmeier, A., Nesis, A., Mattig, W. 1994, A&A, 288, 960.ADSGoogle Scholar
  21. Hewagama, T., Deming, D., Jennings, D.E., Osherovich, V.A., Wiedemann, G., Zipoy, D., Mickey, D.L., Garcia, H.A. 1993, ApJS, 86, 313.ADSCrossRefGoogle Scholar
  22. Jefferies, J.T. 1994, I, p. 1.Google Scholar
  23. Kneer, F., Nolte, N. 1994, A&A, 286, 309.ADSGoogle Scholar
  24. Landolfi, M., Landi Degl’Innocenti, E. 1996, Sol. Phys., 164, 191.ADSCrossRefGoogle Scholar
  25. Lindsey, C. 1994, I, p. 85.Google Scholar
  26. Lindsey, C., Gu, Y., Jefferies, J.T. 1995, in Infrared tools for solar astrophysics: what’s next?, J.R. Kuhn & M.J. Penn (eds.), World Scientific, p. 313.Google Scholar
  27. Márquez, I., Bonet, J.A., Vázquez, M. 1996a, A&A, 305, 316.ADSGoogle Scholar
  28. Márquez, I., Bonet, J.A., Vázquez, M. 1996b, A&A, 306, 305.ADSGoogle Scholar
  29. Martínez Pillet, V., Lites, B.W., Skumanich, A. 1996, ApJ, in press.Google Scholar
  30. Muglach, K., Solanki, S.K., Livingston, W. 1995, II, p. 127.Google Scholar
  31. November, L.J. 1994, Sol. Phys., 154, 1.ADSCrossRefGoogle Scholar
  32. Rimmele, T.R. 1995, ApJ, 445, 511.ADSCrossRefGoogle Scholar
  33. Rodríguez Hidalgo, I., Collados, M., Vázquez, M. 1994, A&A, 283, 263.ADSGoogle Scholar
  34. Rüedi, I., Solanki, S.K., Livingston, W. 1995, A&A, 293, 252.ADSGoogle Scholar
  35. Ruiz Cobo, B., del Toro Iniesta, J.C. 1994, A&A, 283, 129.ADSGoogle Scholar
  36. Rutten, R.J., Carlsson, M. 1994, I. p. 309.Google Scholar
  37. Salucci, G., Bertello, L., Cavallini, F., Cepatelli, G., Righini, A. 1994, A&A, 285, 322.ADSGoogle Scholar
  38. Sánchez Almeida, J., Landi Degl’Innocenti, E. 1996, Sol. Phys., 164, 203.ADSCrossRefGoogle Scholar
  39. Sánchez Almeida, J., Landi Degl’Innocenti, E., Martinez Pillet, V., Lites, B.W. 1996, ApJ, 466, in press.Google Scholar
  40. Sánchez Almeida, J., Ruiz Cobo, B., del Toro Iniesta, J.C. 1996, A&A, in press.Google Scholar
  41. Schmidt, W., Balthasar, H. 1994, A&A, 283, 241.ADSGoogle Scholar
  42. Severino, G., Gomez, M.T., Caccin, B. 1994, II, p. 169.Google Scholar
  43. Solanki, S.K., Bruis, J.H.M.J. 1994, A&A, 286, 269.ADSGoogle Scholar
  44. Solanki, S.K., Montavon, C.A.P. 1993, A&A, 275, 283.ADSGoogle Scholar
  45. Solanki, S.K., Finsterle, W., Rüedi, I. 1996, Sol. Phys. 164, 253.ADSCrossRefGoogle Scholar
  46. Solanki, S.K., Montavon, C.A.P., Livingston, W. 1994, A&A, 283, 221.ADSGoogle Scholar
  47. Solanki, S.K., Bruis, J.H.M.J., Steiner, O., Ayres, T., Livingston, W., Uitenbroek, H. 1994, II, p. 91.Google Scholar
  48. Staude, J. 1996, Sol. Phys., 164, 183.ADSCrossRefGoogle Scholar
  49. Steiner, O., Grossmann-Doerth, U., Schüssler, M., Knölker, M. 1996, Sol. Phys., 164, 223.ADSCrossRefGoogle Scholar
  50. Thomas, J.H. 1994, II, p. 219. &C.J. Schrijver (eds.), KAP, p. 219.Google Scholar
  51. del Toro Iniesta, J.C., Ruiz Cobo, B. 1995, in La polarimétrie, outil pour l’étude de l’activité magnétique solaire et stellaire, N. Mein & S. Sahal-Bréchot (eds.), p. 127.Google Scholar
  52. del Toro Iniesta, J.C., Ruiz Cobo, B. 1996, Sol. Phys., 164, 169.ADSCrossRefGoogle Scholar
  53. del Toro Iniesta, J.C., Tarbell, T.D., Ruiz Cobo, B. 1994, ApJ, 436, 400.ADSCrossRefGoogle Scholar
  54. del Toro Iniesta, J.C., Ruiz Cobo, B., Bellot Rubio, L.R., Collados, M. 1995, A&A, 294, 855.ADSGoogle Scholar
  55. Volmöller, P., Komm, R., Mattig, W. 1996, A&A, 306, 294.ADSGoogle Scholar
  56. Wiehr, E. 1996, A&A, 309, L4.ADSGoogle Scholar
  57. Wiehr, E., Degenhardt, D. 1993, A&A, 278, 584.ADSGoogle Scholar
  58. Zhang, H. 1994, Sol. Phys., 154, 207.ADSCrossRefGoogle Scholar

References

  1. Balkc, A. C., Schrijver, C. J., Zwaan, C., Tarbell, T. D. 1993, Solar Phys., 143, 215ADSCrossRefGoogle Scholar
  2. Beckers, J. M. 1968, Solar Phys., 3, 367ADSGoogle Scholar
  3. Berger, T. E., Schrijver, C. J., Shine, R. A., Tarbell, T. D., Title, A. M., Scharnier, G. 1995, ApJ, 454, 531Google Scholar
  4. Bocchialini, K., Vial, J.-C., Koutchmy, S. 1994, ApJ, 423, L67ADSCrossRefGoogle Scholar
  5. Buente, M., Solanki, S. K., Steiner, O. 1993, A&A, 268, 736ADSGoogle Scholar
  6. Carlsson, M., Stein, R. F. 1992, ApJ, 397, L59ADSCrossRefGoogle Scholar
  7. Carlsson, M., Stein, R. F. 1994, in M. Carlsson (ed.), Chromospheric Dynamics, Proc. Miniworkshop, Inst. Theor. Astrophys., Oslo, p. 47Google Scholar
  8. Carlsson, M., Stein, R. F. 1995, ApJ, 440, L29ADSCrossRefGoogle Scholar
  9. Cook, J. W., Rutten, R. J., Hoekzema, N. M. 1996, ApJ, in pressGoogle Scholar
  10. Degenhardt, D., Solanki, S. K., Montesinos, B., Thomas, J. H. 1993, A&A, 279, L29ADSGoogle Scholar
  11. Deubner, F. L., Waldschik, T., Steffens, S. 1996, A&A, 307, 936ADSGoogle Scholar
  12. Gaizauskas, V. 1994, in R. J. Rutten, C. J. Schrijver (eds.), Solar Surface Magnetism, NATO ASI Series C433, Kluwer, Dordrecht, p. 133CrossRefGoogle Scholar
  13. Grossmann-Doerth, U., Knoelker, M., Schuessler, M., Solanki, S. K. 1994, A&A, 285, 648ADSGoogle Scholar
  14. Heinzel, P., Schmieder, B. 1994, A&A, 282, 939ADSGoogle Scholar
  15. Hoekzema, N. M., Rutten, R. J., Cook, J. W. 1996, ApJ, in pressGoogle Scholar
  16. Hofmann, J., Steffens, S., Deubner, F. L. 1996, A&A, 308, 192ADSGoogle Scholar
  17. Kalkofen, W. 1989, ApJ, 346, L37ADSCrossRefGoogle Scholar
  18. Kalkofen, W., Rossi, P., Bodo, G., Massaglia, S. 1994, A&A, 284, 976ADSGoogle Scholar
  19. Kariyappa, R., Sivaraman, K. R., Anadaram, M. N. 1994, Solar Phys., 151, 243ADSCrossRefGoogle Scholar
  20. Keller, C. U., Deubner, F. L., Egger, U., Fleck, B., Povel, H. P. 1994, A&A, 286, 626ADSGoogle Scholar
  21. Kulaczewski, J. 1992, A&A, 261, 602ADSGoogle Scholar
  22. Kumar, P., Fardai, M. A., Jefferies, S. M., Duvall, T. L., J., Harvey, J. W., Pomerantz, M. A. 1994, ApJ, 422, L29ADSCrossRefGoogle Scholar
  23. Lawrence, J. K., Cadavid, A. C, Ruzmaikin, A. A. 1996, ApJ, 465, 425ADSCrossRefGoogle Scholar
  24. Lawrence, J. K., Ruzmaikin, A. A., Cadavid, A. C. 1993, ApJ, 417, 805ADSCrossRefGoogle Scholar
  25. Lawrence, J. K., Schrijver, C. J. 1993, ApJ, 411, 402ADSCrossRefGoogle Scholar
  26. Lites, B. W., Leka, K. D., Skumanich, A., Martinez Pillet, V., Shimizu, T. 1996, ApJ, 460, 1019ADSCrossRefGoogle Scholar
  27. Lites, B. W., Rutten, R. J., Kalkofen, W. 1993, ApJ, 414, 345ADSCrossRefGoogle Scholar
  28. Malagoli, A., Cattaneo, F., Brummeil, N. H. 1990, ApJ, 361, L33ADSCrossRefGoogle Scholar
  29. Marsch, E., Von Steiger, R., Bochsler, P. 1995, A&A, 301, 261ADSGoogle Scholar
  30. Mein, N., Mein, P., Heinzel, P., Vial, J. C, Malherbe, J. M., Staiger, J. 1996, A&A, 309, 275ADSGoogle Scholar
  31. Montesinos, B., Thomas, J. H. 1993, ApJ, 402, 314ADSCrossRefGoogle Scholar
  32. Muller, R., Auffret, H., Roudier, T., Vigneau, J., Simon, G. W., Frank, Z., Shine, R. A., Title, A. M. 1992, Nat, 356, 322ADSCrossRefGoogle Scholar
  33. Nesis, A., Bogdan, T. J., Cattaneo, F., Hanslmeier, A., Knoelker, M., Malagoli, A. 1992, ApJ, 399, L99ADSCrossRefGoogle Scholar
  34. Nordlund, Å., Dravins, D. 1990, A&A, 228, 155ADSGoogle Scholar
  35. November, L. J. 1994, Solar Phys., 154, 1ADSCrossRefGoogle Scholar
  36. Paxman, R. G., Seldin, J. H., Loefdahl, M. G., Scharnier, G. B., Keller, C. U. 1996, ApJ, 466, 1087ADSCrossRefGoogle Scholar
  37. Rast, M. P. 1995, ApJ, 443, 863ADSCrossRefGoogle Scholar
  38. Rast, M. P., Nordlund, A., Stein, R. F., Toomre, J. 1993, ApJ, 408, L53ADSCrossRefGoogle Scholar
  39. Rimmele, T. R., Goode, P. R., Harold, E., Stebbins, R. T. 1995, ApJ, 444, L119ADSCrossRefGoogle Scholar
  40. Rutten, R. J., Severino, G. (eds.) 1989, Solar and Stellar Granulation, NATO ASI Series C 263, Kluwer, DordrechtGoogle Scholar
  41. Rutten, R. J., Uitenbroek, H. 1991, Solar Phys., 134, 15ADSCrossRefGoogle Scholar
  42. Schmitz, F., Fleck, B. 1995, A&A, 301, 483ADSGoogle Scholar
  43. Schrijver, C. J. 1995, A&AR, 6, 181ADSCrossRefGoogle Scholar
  44. Schrijver, C. J., Hagenaar, H. J., Title, A. M. 1996, ApJ, in pressGoogle Scholar
  45. Sivaraman, K. R., Livingston, W. C. 1982, Solar Phys., 80, 227ADSCrossRefGoogle Scholar
  46. Solanki, S. K., Rueedi, L, Bianda, M., Steffen, M. 1996, A&A, 308, 623ADSGoogle Scholar
  47. Spruit, H. C., Nordlund, A., Title, A. M. 1990, ARA&A, 28, 263ADSCrossRefGoogle Scholar
  48. Spruit, H. C., Schuessler, M., Solanki, S. K. 1991, in Solar interior and atmosphere. Tucson, AZ, University of Arizona Press, 1991, p. 890–910., p. 890Google Scholar
  49. Steffens, S., Deubner, F. L., Hofmann, J., Fleck, B. 1995, A&A, 302, 277ADSGoogle Scholar
  50. Steffens, S., Hofmann, J., Deubner, F. L. 1996, A&A, 307, 288ADSGoogle Scholar
  51. Stein, R. F., Nordlund, A. 1989, ApJ, 342, L95ADSCrossRefGoogle Scholar
  52. Steiner, O., Knölker, M., Schüssler, M. 1994, in R. J. Rutten, C. J. Schrijver (eds.), Solar Surface Magnetism, NATO ASI Series C433, Kluwer, Dordrecht, p. 441CrossRefGoogle Scholar
  53. Straus, T., Bonaccini, D. 1996, A&A, submittedGoogle Scholar
  54. Straus, T., Deubner, F. L., Fleck, B. 1992, A&A, 256, 652ADSGoogle Scholar
  55. Sutmann, G., Ulmschneider, P. 1995a, A&A, 294, 232ADSGoogle Scholar
  56. Sutmann, G., Ulmschneider, P. 1995b, A&A, 294, 241ADSGoogle Scholar
  57. Tao, L., Du, Y., Rosner, R., Cattaneo, F. 1995, ApJ, 443, 434ADSCrossRefGoogle Scholar
  58. Title, A. M., Berger, T. E. 1996, ApJ, 463, 797ADSCrossRefGoogle Scholar
  59. Tsiropoula, G., Alissandrakis, C. E., Schmieder, B. 1994, A&A, 290, 285ADSGoogle Scholar
  60. Volkmer, R., Kneer, F., Bendlin, C. 1995, A&A, 304, LlGoogle Scholar
  61. Von Uexkuell, M., Kneer, F. 1995, A&A, 294, 252ADSGoogle Scholar
  62. Wang, Y., Noyes, R. W., Tarbell, T. D., Title, A. M. 1995, ApJ, 447, 419ADSCrossRefGoogle Scholar

References

  1. Amer M.A., Kneer F., 1993, Astron. Astrophys. 273, 304ADSGoogle Scholar
  2. Bocchialini K., Baudin F., 1995, Astron. Astrophys. 299, 893ADSGoogle Scholar
  3. Bocchialini K., Vial J.-C, Koutchmy S., 1994 ApJ 423, L67ADSCrossRefGoogle Scholar
  4. Briand C, Solanki S.K., 1995, Astron. Astrophys. 299, 596ADSGoogle Scholar
  5. Bruls J.H.M.J., Solanki S.K., 1993, Astron. Astrophys. 273, 293ADSGoogle Scholar
  6. Bunte M., Bogdan T.J., 1993, Astron. Astrophys. 283, 642ADSGoogle Scholar
  7. Bünte M., Solanki S.K., Steiner O., 1993, Astron. Astrophys. 268, 736ADSGoogle Scholar
  8. Choudhuri A.R., Dikpati M., Banerjee D., 1993 ApJ 413, 811ADSCrossRefGoogle Scholar
  9. Degenhardt D., Solanki S.K., Montesinos B., Thomas J.H., 1993, Astron. Astrophys. 279, L29ADSGoogle Scholar
  10. Goossens M., Ruderman M.S., Hollweg J.V., 1995, Solar Phys. 157, 75ADSCrossRefGoogle Scholar
  11. Jordan S., 1993 ApJ 414, 337ADSCrossRefGoogle Scholar
  12. Kariyappa R., 1994, Solar Phys. 154, 19ADSCrossRefGoogle Scholar
  13. Kneer F., Stolpe F., 1996, Solar Phys. 164, 303ADSCrossRefGoogle Scholar
  14. Lites B.W., Rutten R.J., Kalkofen W., 1993ApJ414, 345ADSCrossRefGoogle Scholar
  15. Lundberg J., 1994, Solar Phys. 154, 215ADSCrossRefGoogle Scholar
  16. Márquez I., Bonet J.A., Vazquez M., 1996, Astron. Astrophys. 306, 305ADSGoogle Scholar
  17. Montagne M., Müller R., Vigneau J., 1996, Astron. Astrophys. 311, 304ADSGoogle Scholar
  18. Montesinos B., Thomas J.H., 1993 ApJ 402, 314ADSCrossRefGoogle Scholar
  19. Muglach K., Solanki S.K., Livingston W.C., 1995, in Infrared Tools for Solar Astrophysics: What’s Next?, J.R. Kuhn, M.J. Penn (Eds.), World Scientific, Singapore, p. 387Google Scholar
  20. Muller R., Roudier Th., Vigneau J., Auffret H., 1994, Astron. Astrophys. 283, 232ADSGoogle Scholar
  21. Nakariakov V.M., Roberts B., 1995, Solar Phys. 159, 213ADSCrossRefGoogle Scholar
  22. Narain U., Ulmschneider P., 1995, Space Sci. Rev. 75, 453ADSCrossRefGoogle Scholar
  23. Sánchez Almeida J., Landi Degl’Innocenti E., 1996, Solar Phys. 164, 203ADSCrossRefGoogle Scholar
  24. Solanki S.K., 1993, Space Sci. Rev. 61, 1ADSCrossRefGoogle Scholar
  25. Steiner O., Knölker M., Schüssler M., 1993, in Solar Surface Magnetism, R.J. Rutten, C.J. Schrijver (Eds.), Kluwer, Dordrecht, p. 441Google Scholar
  26. Steiner O., Grossmann-Doerth U., Knölker M., Schüssler M., 1995, Rev. Mod. Astron. 8, p. 81ADSGoogle Scholar
  27. Steiner O., Grossmann-Doerth U., Schüssler M., Knölker M., 1996, Solar Phys. 164, 223ADSCrossRefGoogle Scholar
  28. Volkmer R., Kneer F., Bendlin C., 1995, Astron. Astrophys. 304, LlGoogle Scholar
  29. Zhugzhda Y.D., 1996, Physics of Plasmas 3, 10MathSciNetADSCrossRefGoogle Scholar

References

  1. Anderson, S.W., 1994, ApJ 437, 860ADSCrossRefGoogle Scholar
  2. Anderson, S.W., Raymond, J.C., van Ballegooijen, A., 1996, ApJ 457, 939ADSCrossRefGoogle Scholar
  3. Canullo, M.V., Costa, A., Ferro-Fontan, C, 1996, ApJ 462, 1005ADSCrossRefGoogle Scholar
  4. Fisher, R., Guhathakurta, M., 1995, ApJ Lett. 447, L139ADSCrossRefGoogle Scholar
  5. Habbal, S.R., Esser, R., Arndt, M.B., 1993, ApJ 413, 435ADSCrossRefGoogle Scholar
  6. Hammer, R., 1994, in Solar Magnetic Fields, eds. M. Schüssler and W. Schmidt, Cambridge Univ. Press, p. 347Google Scholar
  7. Hammer, R., Nesis, A., Moore, R.L., Suess, S.T, Musielak, Z.M., 1996, in 9th Cambridge Workshop on Cool Stars, Stellat Systems, and the Sun, eds. R. Pallavicini and A.K. Dupree, in pressGoogle Scholar
  8. Hansteen, V.H., Leer, E., 1995, J. Geophys. Res. 100(A11), 21577ADSCrossRefGoogle Scholar
  9. Johannesson, A., Zirin, H., 1996, ApJ, in pressGoogle Scholar
  10. Kohl, J.L., Gardner, L.D., Strachan, L., Fisher, R., Guhathakurta, M., 1995, Space Sci. Rev. 72, 29ADSCrossRefGoogle Scholar
  11. Kohl, J.L., Strachan, L., Gardner, L.D., 1996, ApJ Lett. 465, L141ADSCrossRefGoogle Scholar
  12. Krogulec, M., Musielak, Z.M., Suess, S.T., Nerney, S.F., Moore, R.L., 1994, J. Geophys. Res. 99(A12), 23489ADSCrossRefGoogle Scholar
  13. Lou, Y.-Q., Rosner, R., 1994, ApJ 424, 429ADSCrossRefGoogle Scholar
  14. MacGregor, K.B., Charbonneau, P., 1994, ApJ 430, 387ADSCrossRefGoogle Scholar
  15. Marsch, E., 1994, Adv. Space Res. 14(4)103ADSCrossRefGoogle Scholar
  16. McKenzie, J.F., Banaszkiewicz, M., Axford, W.L, 1995, A&A 303, L45ADSGoogle Scholar
  17. Musielak, Z.M., Moore, R.L., 1995, ApJ 452, 434ADSCrossRefGoogle Scholar
  18. Narain, U., Ulmschneider, P., 1996, Space Sci. Rev. 75, 453ADSCrossRefGoogle Scholar
  19. Ofman, L., Davila, J.M., 1995, J. Geophys. Res. 100(A12), 23413ADSCrossRefGoogle Scholar
  20. Olsen, E.L., Leer, E., Holzer, T.E., 1994, ApJ 420, 913ADSCrossRefGoogle Scholar
  21. Olsen, E.X., Leer, E., 1996, ApJ 462, 982ADSCrossRefGoogle Scholar
  22. Olsen, E.L., Leer, E., 1996, J. Geophys. Res., in pressGoogle Scholar
  23. Parker, E.N., 1991, ApJ 372, 719ADSCrossRefGoogle Scholar
  24. Sandbaek, Ø., Leer, E., Hansteen, V.H., 1994, ApJ 436, 390ADSCrossRefGoogle Scholar
  25. Stark-Kublin, B., 1995, Ph.D. Thesis, Univ. Alabama at HuntsvilleGoogle Scholar
  26. Scudder, J.D., 1994, ApJ 427, 446ADSCrossRefGoogle Scholar
  27. Sturrock, P.A., Wheatland, M.S., Acton, L.A., 1996, ApJ Lett. 461, L115ADSCrossRefGoogle Scholar
  28. Velli, M., 1993, A&A 270, 304ADSGoogle Scholar
  29. Wang, Y.-M., 1993, ApJ Lett. 410, L123ADSCrossRefGoogle Scholar
  30. Wang, Y.-M., 1994, ApJ Lett. 435, L153ADSCrossRefGoogle Scholar
  31. Wang, Y.-M., Sheeley, N.R., Jr., 1995a, ApJ Lett. 446, L51ADSCrossRefGoogle Scholar
  32. Wang, Y.-M., Sheeley, N.R., Jr., 1995b, ApJ Lett. 447, L143ADSGoogle Scholar
  33. Withbroe, G.L., 1988, ApJ 325, 442ADSCrossRefGoogle Scholar
  34. Woo, R., 1996, ApJ Lett. 464, L95ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • Christoph U. Keller
    • 1
  • Tim Brown
    • 2
  • J. C. del Toro Iniesta
    • 3
  • Rob J. Rutten
    • 4
  • Sami K. Solanki
    • 5
  • Rainer Hammer
    • 6
  1. 1.National Solar ObservatoryNOAOTucsonUSA
  2. 2.NCARBoulderUSA
  3. 3.Instituto de Astrofisica de CanariasLa Laguna, Tenerife Canary IslandsSpain
  4. 4.Sterrekundig InstituutUtrechtThe Netherlands
  5. 5.Institut für AstronomieETH-ZentrumZürichSwitzerland
  6. 6.Kiepenheuer-Institut für SonnenphysikFreiburgGermany

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