Honary, F.; Stocker, A. J.; Robinson, T. R.; Jones, T. B.; Wade, N. M.; Stubbe, P.; Kopka, H.: EISCAT observations of electron temperature oscillations due to the action of high power HF radio waves. Journal of Atmospheric and Terrestrial Physics 55, pp. 1433 - 1448 (1993)
Kohl, H.; Kopka, H.; Stubbe, P.; Rietveld, M. T.: Introduction to ionospheric heating experiments at Tromsø - II. Scientific problems. Journal of Atmospheric and Terrestrial Physics 55, pp. 601 - 613 (1993)
Rietveld, M. T.; Kohl, H.; Kopka, H.; Stubbe, P.: Introduction to ionospheric heating at Tromsø - I. Experimental overview. Journal of Atmospheric and Terrestrial Physics 55, pp. 577 - 599 (1993)
Stocker, A. J.; Honary, F.; Robinson, T. R.; Jones, T. B.; Stubbe, P.: Anomalous absorption during artificial modification at harmonics of the electron gyrofrequency. Journal Geophysical Research 98, pp. 13627 - 13634 (1993)
Barr, R.; Stubbe, P.: VLF heating of the lower ionosphere: Variation with magnetic latitude and electron density profile. Geophysical Research Letters 19, pp. 1747 - 1750 (1992)
Lobachevsky, L. A.; Gruzdev, Y. V.; Kim, V. Y.; Mikhailova, G. A.; Panchenko, V. A.; Polimatidi, V. P.; Puchkov, V. A.; Vaskov, V. V.; Stubbe, P.; Kopka, H.: Observations of ionospheric modification by the Tromsø heating facility with the mobile diagnostic equipment of IZMIRAN. Journal of Atmospheric and Terrestrial Physics 54, pp. 75 - 85 (1992)
Stocker, A. J.; Honary, F.; Robinson, T. R.; Jones, T. B.; Stubbe, P.; Kopka, H.: EISCAT observations of large scale electron temperature and electron density perturbations caused by high power HF radio waves. Journal of Atmospheric and Terrestrial Physics 54, pp. 1555 - 1572 (1992)
Stubbe, P.: Comment on ``Stimulated emissions from magnetized and inhomogeneous plasma'' by S. Goodman. Journal Geophysical Research 97, pp. 15057 - 15058 (1992)
Stubbe, P.; Kohl, H.; Rietveld, M. T.: Reply (to 'Comment on ``Langmuir Turbulence and Ionospheric Modification'' by P. Stubbe, H. Kohl and M. T. Rietveld' by D. F. DuBois, A. Hanssen and H. A. Rose). Journal Geophysical Research 97, pp. 15067 - 15071 (1992)
Barr, R.; Stubbe, P.; Kopka, H.: Long-range detection of VLF radiation produced by heating the auroral electrojet. Radio Science 26, pp. 871 - 879 (1991)
Dowden, R. L.; Adams, C. D. D.; Rietveld, M. T.; Stubbe, P.; Kopka, H.: Phase and amplitude perturbations on subionospheric signals produced by a moving patch of artificially heated ionosphere. Journal Geophysical Research 96, pp. 239 - 248 (1991)
Isham, B.; Kofman, W.; Hagfors, T.; Nordling, J.; Thidé, B.; La Hoz, C.; Stubbe, P.: New phenomena observed by EISCAT during an RF ionospheric modification experiment. Radio Science 25, pp. 251 - 262 (1990)
Leyser, T. B.; Thidé, B.; Derblom, H.; Hedberg, Å.; Lundborg, B.; Stubbe, P.; Kopka, H.: Dependence of stimulated electromagnetic emission on the ionosphere and pump wave. Journal Geophysical Research 95, pp. 17233 - 17244 (1990)
Maul, A.-A.; Rietveld, M. T.; Stubbe, P.; Kopka, H.: Anregung periodischer Magnetfeldschwankungen durch Einstrahlung von amplitudenmodulierten Hochfrequenzwellen in die polare Ionosphäre. Kleinheubacher Berichte 33, pp. 141 - 149 (1990)
Maul, A.-A.; Rietveld, M. T.; Stubbe, P.; Kopka, H.: Excitation of periodic magnetic field oscillations in the ULF range by amplitude modulated HF waves. Annales Geophysicae 8, pp. 765 - 780 (1990)
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, ...