Borrero, J. M.; Solanki, S. K.; Bellot Rubio, L. R.; Lagg, A.; Mathew, S. K.: On the fine structure of sunspot penumbrae - I. A quantitative comparison of two semiempirical models with implications for the Evershed effect. Astronomy and Astrophysics 422, pp. 1093 - 1104 (2004)
Bruls, J. H. M. J.; Solanki, S. K.: Apparent solar radius variations - The influence of magnetic network and plage. Astronomy and Astrophysics 427 (2), pp. 735 - 743 (2004)
Krivov, A. V.; Krivova, N. A.; Solanki, S. K.; Titov, V. B.: Towards understanding the β Pictoris dust stream. Astronomy and Astrophysics 417, pp. 341 - 352 (2004)
Krivova, N. A.; Solanki, S. K.: Effect of spatial resolution on estimating the Sun's magnetic flux. Astronomy and Astrophysics 417, pp. 1125 - 1132 (2004)
Krivova, N. A.; Solanki, S. K.: Solar variability and global warming: A statistical comparison since 1850. Advances in Space Research 34, pp. 361 - 364 (2004)
Lagg, A.; Woch, J.; Krupp, N.; Solanki, S. K.: Retrieval of the full magnetic vector with the He I multiplet at 1083 nm. Maps of an emerging flux region. Astronomy and Astrophysics 414, pp. 1109 - 1120 (2004)
Loukitcheva, M.; Solanki, S. K.; Carlsson, M.; Stein, R. F.: Millimeter observations and chromospheric dynamics. Astronomy and Astrophysics 419, pp. 747 - 756 (2004)
Mathew, S. K.; Solanki, S. K.; Lagg, A.; Collados, M.; Borrero, J. M.; Berdyugina, S.: Thermal-magnetic relation in a sunspot and a map of its Wilson depression. Astronomy and Astrophysics 422, pp. 693 - 701 (2004)
Ning, Z.; Innes, D. E.; Solanki, S. K.: Line profile characteristics of solar explosive event bursts. Astronomy and Astrophysics 419, pp. 1141 - 1148 (2004)
Preuss, O.; Haugan, M. P.; Solanki, S. K.; Jordan, S.: An astronomical search for evidence of new physics: Limits on gravity-induced birefringence from the magnetic white dwarf RE J0317-853. Physical Review D 70 (6), 067101 (2004)
Preuss, O.; Schüssler, M.; Holzwarth, V.; Solanki, S. K.: Distribution of magnetically confined circumstellar matter in oblique rotators. Astronomy and Astrophysics 417, pp. 987 - 992 (2004)
Raouafi, N.-E.; Mancuso, S.; Solanki, S. K.; Inhester, B.; Mierla, M.; Stenborg, G.; Delaboudiniere, J. P.; Benna, C.: Shock wave driven by an expanding system of loops. Astronomy and Astrophysics 424 (3), pp. 1039 - 1048 (2004)
Raouafi, N.-E.; Solanki, S. K.: Effect of the electron density stratification on off-limb OVI line profiles: How large is the velocity distribution anisotropy in the solar corona? Astronomy and Astrophysics 427 (2), pp. 725 - 733 (2004)
Shelyag, S.; Schüssler, M.; Solanki, S. K.; Berdyugina, S.; Vögler, A.: G-band spectral synthesis and diagnostics of simulated solar magneto-convection. Astronomy and Astrophysics 427, pp. 335 - 343 (2004)
Solanki, S. K.; Preuss, O.; Haugan, M.; Gandorfer, A.; Povel, H. P.; Steiner, P.; Stucki, K.; Bernasconi, P. N.; Soltau, D.: Solar constraints on new couplings between electromagnetism and gravity. Physical Review D 69, 062001 (2004)
Solanki, S. K.; Usoskin, I. G.; Kromer, B.; Schüssler, M.; Beer, J.: Unusual activity of the Sun during recent decades compared to the previous 11,000 years. Nature 431 (7012), pp. 1084 - 1087 (2004)
Solar Orbiter is the first space probe to look at the Sun's poles – and finds the magnetic field there in a state of turmoil. The Sun's magnetic field is currently undergoing a flip.
First Light! The spectro-polarimeter of the world's largest solar telescope in Hawaii looks at the Sun for the first time. The instrument was developed in Germany.
Dr. Theodosios Chatzistergos receives award by the European Space Weather and Space Climate Association for his research findings on the historical activity of the Sun.
The Zdenĕk Švetska Senior Prize of the Solar Physics Division of the European Physical Society (EPS) recognizes Solanki’s pioneering contributions to solar research.