Nielsen, E.; Fraenz, M.; Zou, H.; Wang, J.-S.; Gurnett, D. A.; Kirchner, D. L.; Morgan, D. D.; Huff, R.; Safaeinili, A.; Plaut, J. J.et al.; Picardi, G.; Winningham, J. D.; Frahm, R. A.; Lundin, R.: Local plasma processes and enhanced electron densities in the lower ionosphere in magnetic cusp regions on Mars. Planetary and Space Science 55, pp. 2164 - 2172 (2007)
Nielsen, E.; Wang, X.-D.; Gurnett, D. A.; Kirchner, D. L.; Orosie, R.; Safaeinili, A.; Plaut, J. J.; Picardi, G.: Vertical sheets of dense plasma in the top side Martian ionosphere. Journal Geophysical Research 112 (E2), E02003 (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)
Nielsen, E.; Morgan, D. D.; Kirchner, D. L.; Plaut, J. J.; Picardi, G.: Absorption and reflection of radio waves in the Martian ionosphere. Planetary and Space Science 55, pp. 864 - 870 (2006)
Nielsen, E.; Zou, H.; Gurnett, D. A.; Kirchner, D. L.; Morgan, D. D.; Huff, R.; Orosei, R.; Safaeinili, A.; Plaut, J. J.; Picardi, G.: Observations of vertical reflections from the topside Martian ionosphere. Space Science Reviews 126, pp. 373 - 388 (2006)
Zou, H.; Wang, J. S.; Nielsen, E.: Reevaluating the relationship between the Martian ionospheric peak density and the solar radiation. Journal Geophysical Research 111 (A7), A07305 (2006)
Borisov, N.; Nielsen, E.: Excitation of plasma waves by unstable photoelectron and thermal electron populations on closed magnetic field lines in the Martian ionosphere. Annales Geophysicae 23, pp. 1249 - 1258 (2005)
Gurnett, D. A.; Kirchner, D. L.; Huff, R. L.; Morgan, D. D.; Persoon, A. M.; Duru, F.; Nielsen, E.; Safaeinili, A.; Plaut, J. J.; Picardi, G.: Radar soundings of the ionosphere of Mars. Science 310, pp. 1929 - 1933 (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)
Zou, H.; Wang, J.-S.; Nielsen, E.: Effect of the seasonal variations in the lower atmosphere on the altitude of the ionospheric main peak at Mars. Journal Geophysical Research 110, A09311 (2005)
Nielsen, E.; Honary, F.; Grill, M.: Time resolution of cosmic noise observations with a correlation experiment. Annales Geophysicae 22 (5), pp. 1687 - 1689 (2004)
Wang, J.-S.; Nielsen, E.: Solar wind modulation of the Martian ionosphere observed by MARS Global Surveyor. Annales Geophysicae 22 (6), pp. 2277 - 2281 (2004)
Nielsen, E.; Rietveld, M. T.: Observations of backscatter autocorrelation functions from 1.07-m ionospheric irregularities generated by the European Incoherent Scatter Heater Facility. Journal Geophysical Research 108 (A5), 1166 (2003)
Wang, J.-S.; Nielsen, E.: Behavior of the Martian dayside electron density peak during global dust storms. Planetary and Space Science 51, pp. 329 - 338 (2003)
Wang, J.-S.; Nielsen, E.: Wavelike structures in the Martian topside ionosphere observed by Mars Global Surveyor. Journal Geophysical Research 108 (E7), 5078 (2003)
Analyzing the high spatial resolution solar Ca II H and K emission data obtained by the SUNRISE mission and building a model of other stars more active than the Sun
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).
First Light for Sunrise III: the first tests with real sunlight were successful. The balloon-borne solar observatory should be ready for launch at the end of May.