Zhang, Z.; Hagfors, T.; Nielsen, E.; Picardi, G.; Mesdea, A.; Plaut, J. J.: Dielectric properties of the Martian south polar layered deposits: MARSIS data inversion using Bayesian inference and genetic algorithm. Journal Geophysical Research 113, E05004 (2008)
Kosch, M. J.; Pedersen, T.; Rietveld, M. T.; Gustavsson, B.; Grach, S. M.; Hagfors, T.: Artificial optical emissions in the high-latitude thermosphere induced by powerful radio waves: An observational review. Advances in Space Research 40 (3), pp. 365 - 376 (2007)
Plaut, J. J.; Picardi, G.; Safaeinili, A.; Ivanov, A. B.; Milkovich, S. M.; Cicchetti, A.; Kofman, W.; Mouginot, J.; Farrell, W. M.; Phillips, R. J.et al.; Clifford, S. M.; Frigeri, A.; Orosei, R.; Federico, C.; Williams, I. P.; Gurnett, D. A.; Nielsen, E.; Hagfors, T.; Heggy, E.; Stofan, E. R.; Plettemeier, D.; Watters, T. R.; Leuschen, C. J.; Edenhofer, P.: Subsurface radar sounding of the south polar layered deposits of Mars. Science 316, pp. 92 - 95 (2007)
Buchert, S. C.; Hagfors, T.; McKenzie, J. F.: Effect of electrojet irregularities on DC current flow. Journal Geophysical Research 111 (A2), A02305 (2006)
Tereshchenko, E. D.; Khudukon, B. Z.; Rietveld, M. T.; Isham, B.; Hagfors, T.; Brekke, A.: The relationship between small-scale and large-scale ionospheric electron density irregularities generated by powerful HF electromagnetic waves at high latitudes. Annales Geophysicae 24 (11), pp. 2901 - 2909 (2006)
Tereshchenko, E. D.; Yurik, R. Y.; Khudukon, B. Z.; Rietveld, M. T.; Isham, B.; Belyey, V.; Brekke, A.; Hagfors, T.; Grill, M.: Directional features of the downshifted peak observed in HF-induced stimulated electromagnetic emission spectra obtained using an interferometer. Annales Geophysicae 24 (7), pp. 1819 - 1827 (2006)
Blixt, E. M.; Grydeland, T.; Ivchenko, N.; Hagfors, T.; La Hoz, C.; Lanchester, B. S.; Løvhaug, U. P.; Trondsen, T. S.: Dynamic rayed aurora and enhanced ion-acoustic radar echoes. Annales Geophysicae 23 (1), pp. 3 - 11 (2005)
Isham, B.; Hagfors, T.; Khudukon, B.; Yurik, R. Y.; Tereshchenko, E. D.; Rietveld, M. T.; Belyey, V.; Grill, M.; La Hoz, C.; Brekke, A.et al.; Heinselman, C.: An interferometer experiment to explore the aspect angle dependence of stimulated electromagnetic emission spectra. Annales Geophysicae 23 (1), pp. 55 - 74 (2005)
McKenzie, J. F.; Hagfors, T.: Parametric resonances revisited: comparison with kinetic description. Journal of Plasma Physics 71 (5), pp. 579 - 587 (2005)
Picardi, G.; Jeffrey, P. J.; Biccari, D.; Bombaci, O.; Calabrese, D.; Cartacci, M.; Cicchetti, A.; Clifford, S. M.; Edenhofer, P.; Farrell, W. M.et al.; Federico, C.; Frigeri, A.; Gurnett, D. A.; Hagfors, T.; Heggy, E.; Herique, A.; Huff, R. L.; Ivanov, A. B.; Johnson, W. T. K.; Jordan, R. L.; Kirchner, D. L.; Kofman, W.; Leuschen, C. J.; Nielsen, E.; Orosei, R.; Pettinelli, E.; Phillips, R. J.; Plettemeier, D.; Safaeinili, A.; Seu, R.; Stofan, E. R.; Vannaroni, G.; Watters, T. R.; Zampolini, E.: Radar soundings of the subsurface of Mars. Science 310, pp. 1925 - 1928 (2005)
Djuth, F. T.; Isham, B.; Rietveld, M. T.; Hagfors, T.; La Hoz, C.: First 100 ms of HF modification at Tromso, Norway. Journal Geophysical Research 109 (A11), A11307 (2004)
Grydeland, T.; Blixt, E. M.; Løvhaug, U. P.; Hagfors, T.; La Hoz, C.; Trondsen, T. S.: Interferometric radar observations of filamented structures due to plasma instabilities and their relation to dynamic auroral rays. Annales Geophysicae 22 (4), pp. 1115 - 1132 (2004)
Cierpka, K.; Kosch, M. J.; Holma, H.; Kavanagh, A. J.; Hagfors, T.: Novel Fabry-Perot interferometer measurements of F-region ion temperature. Geophysical Research Letters 30 (6), 1293 (2003)
Grydeland, T.; La Hoz, C.; Hagfors, T.; Blixt, E. M.; Saito, S.; Strømme, A.; Brekke, A.: Interferometric observations of filamentary structures associated with plasma instability in the auroral ionosphere. Geophysical Research Letters 30, 1338 (2003)
Ilyushin, Y. A.; Hagfors, T.; Kunitsyn, V. E.: Cometary surface layer properties: Possible approach to radio sounding retrieval during the CONSERT experiment - Numerical simulation and discussion. Radio Science 38 (1), 1008 (2003)
Kosch, M. J.; Rietveld, M. T.; Kavanagh, A. J.; Davis, C.; Yeoman, T.; Honary, F.; Hagfors, T.: High-latitude pump-induced optical emissions for frequencies close to the third electron gyro-harmonic. Geophysical Research Letters 29 (23), 2112 (2002)
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.
The magnetic field in the solar atmosphere exceeds the geomagnetic field strength by four orders of magnitude. It greatly influences the processes of energy transport within the solar atmosphere, and dominates the morphology of the solar chromosphere and corona. Kinetic energy from convective motions in the Sun can be efficiently stored in magnetic fields and subsequently released - to heat the solar corona to several million degrees or to blast off coronal mass ejections.
Application deadline 1 October 2024. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...