References

 
• Balmforth, N. J., Gough, D. O., & Merryfield, W. J. 1996, MNRAS, 278, 437 NASA ADS  
• Berger, T. E., Schrijver, C. J., Shine, R. A., et al. 1995, ApJ, 454, 531 NASA ADS  
• Chapman, G. A. 1980, ApJ, 242, L45 NASA ADS  
• Chapman, G. A. 1987, ARA&A, 25, 633 NASA ADS  
• Chapman, G. A., & Klabunde, D. P. 1982, ApJ, 261, 387 NASA ADS  
• Deinzer, W., Hensler, G., Schüssler, M., & Weisshaar, E. 1984a, A&A, 139, 426 NASA ADS  
• Deinzer, W., Hensler, G., Schüssler, M., & Weisshaar, E. 1984b, A&A, 139, 435 NASA ADS  
• Domingo, V., Fleck, B., & Poland, A. I. 1995, Sol. Phys., 162, 1 NASA ADS  
• Ermolli, I., Berrilli, F., & Florio, A. 1999, in ESA SP-448, Proc. 9th European Meeting on Solar Physics, Magnetic Fields and Solar Processes (ESA Publications Division, Florence, Italy), 275  
• Fligge, M., Solanki, S. K., Meunier, N., & Unruh, Y. 2000a, in ESA SP-463, The First SOLSPA Euroconference: The Solar Cycle and Terrestrial Climate (ESA Publications Division, Tenerife, Spain), 117  
• Fligge, M., & Solanki, S. K. 2000b, JA&A, 21, 275  
• Foukal, P. 1981, in Physics of Sunspots, ed. L.E. Cram, & J.H. Thomas, Sacramento Peak Observatory, Sunspot, NM, 391  
• Foukal, P., & Fowler, L. 1984, ApJ, 281, 442 NASA ADS  
• Foukal, P., & Lean, J. L. 1988, ApJ, 328, 347 NASA ADS  
• Frazier, E. N. 1971, Sol. Phys., 21, 42 NASA ADS  
• Fröhlich, C., Romero, J., Roth, H., et al. 1995, Sol. Phys., 162, 101 NASA ADS  
• Grossmann-Doerth, U., Knölker, M., Schüssler, M., & Weisshaar, E. 1989, in NATO ASI Ser. C-263, Solar and Stellar Granulation, ed. R. J. Rutten, & G. Severino (Kluwer, Dordrecht), 191  
• Grossmann-Doerth, U., Knölker, M., Schüssler, M., & Solanki, S. K. 1994, A&A, 285, 648 NASA ADS  
• Keller, C. U. 1992, Nature, 359, 307 NASA ADS  
• Knölker, M., & Schüssler, M. 1988, A&A, 202, 275 NASA ADS  
• Knölker, M., & Schüssler, M. 1989, in Flux tubes in the solar atmosphere, ed. E. Leer and P. Maltby, Institute of Theoretical Astrophysics (University of Oslo), 17  
• Knölker, M., Schüssler, M., & Weisshaar, E. 1988, A&A, 194, 257 NASA ADS  
• Kuhn, J. R., Libbrecht, K. G., & Dicke, R. H. 1988, Science, 242, 908 NASA ADS  
• Lawrence, J. K. 1988, Sol. Phys., 116, 17 NASA ADS  
• Lawrence, J. K, Chapman, G. A., & Herzog, A. D. 1988, ApJ, 324, 1184 NASA ADS  
• Lawrence, J. K., Topka, K. P., & Jones, H. P. 1993, J. Geophys. Res., 98, 18911  
• Lean, J. L., Cook, J., Marquette, W., & Johannesson, A. 1998, ApJ, 492, 390 NASA ADS  
• Libbrecht, K. G., & Kuhn, J. R. 1984, ApJ, 277, 889 NASA ADS  
• Libbrecht, K. G., & Kuhn, J. R. 1985, ApJ, 299, 1047 NASA ADS  
• Muller, R. 1983, Sol. Phys., 87, 243  
• Neckel, H., & Labs, D. 1994, Sol. Phys., 153, 91 NASA ADS  
• Scherrer, P. H., Bogart, R. S., Bush, R. I., et al. 1995, Sol. Phys., 162, 129 NASA ADS  
• Solanki, S. K. 1986, A&A, 168, 311 NASA ADS  
• Solanki, S. K. 1993, Space Sci. Rev., 61, 1  
• Solanki, S. K. 1994, in The Sun as a Variable Star: Solar and Stellar Irradiance Variations, ed. J.M. Pap, C. Fröhlich, H. Hudson, & S.K. Solanki (Cambridge Univ. Press), IAU Coll., 143, 226  
• Solanki, S. K. 2001, in Magnetic Fields Across the HR Diagram, ed. G. Mathys, S.K. Solanki, & D. Wickramasinghe, Astronomical Society of the Pacific, ASP Conf. Ser., 248, 45  
• Solanki, S. K., & Brigljevic, V. 1992, A&A, 262, L29 NASA ADS  
• Solanki, S. K., Finsterle, W., Rüedi, I., & Livingston, W. 1999, A&A, 347, L27 NASA ADS  
• Solanki, S. K., & Fligge, M. 2001, Adv. Space Res., in press  
• Solanki, S. K., & Stenflo, J. O. 1984, A&A, 140, 185 NASA ADS  
• Spruit, H. C. 1976, Sol. Phys., 50, 269 NASA ADS  
• Spruit, H. C., & Zwaan, C. 1981, Sol. Phys., 70, 207 NASA ADS  
• Steiner, O., Grossmann-Doerth, U., Schüssler, M., & Knölker, M. 1996, Sol. Phys., 164, 223 NASA ADS  
• Topka, K. P., Tarbell, T. D., & Title, A. M. 1992, ApJ, 396, 351 NASA ADS  
• Topka, K. P., Tarbell, T. D., & Title, A. M. 1997, ApJ, 484, 479 NASA ADS  
• Unruh, Y. C., Solanki, S. K., & Fligge, M. 1999, A&A, 345, 635 NASA ADS  
• Wang, H., & Zirin, H. 1987, Sol. Phys., 110, 281 NASA ADS  
• Willson, R. C., & Hudson, H. S. 1988, Nature, 332, 810 NASA ADS  
• Zayer, I., Stenflo, J. O., Keller, C. U., & Solanki, S. K. 1990, A&A, 239, 356 NASA ADS