Judge, P. G.; Hansteen, V.; Wikstøl, Ø.; Wilhelm, K.; Schühle, U.: Evidence in support of the ``nanoflare'' picture of coronal heating from SUMER data. Astrophysical Journal 502, pp. 981 - 996 (1998)
Lemaire, P.; Emerich, C.; Curdt, W.; Schühle, U.; Wilhelm, K.: Solar H I Lyman α full disk profile obtained with the SUMER/SOHO spectrometer. Astronomy and Astrophysics 334, pp. 1095 - 1098 (1998)
Schühle, U.; Brekke, P.; Curdt, W.; Hollandt, J.; Lemaire, P.; Wilhelm, K.: Radiometric calibration tracking of the vacuum-ultraviolet spectrometer SUMER during the first year of the SOHO mission. Applied Optics 37, pp. 2646 - 2652 (1998)
Tu, C.-Y.; Marsch, E.; Wilhelm, K.; Curdt, W.: Ion temperatures in a solar coronal hole observed by SUMER on SOHO. Astrophysical Journal 503, pp. 475 - 482 (1998)
Warren, H. P.; Mariska, J. T.; Wilhelm, K.: High-resolution observations of the solar hydrogen Lyman lines in the quiet Sun with the SUMER instrument on SOHO. Astrophysical Journal, Suppl. Ser. 119, pp. 105 - 120 (1998)
Wilhelm, K.; Lemaire, P.; Dammasch, I. E.; Hollandt, J.; Schühle, U.; Curdt, W.; Kucera, T.; Hassler, D. M.; Huber, M. C. E.: Solar irradiances and radiances of UV and EUV lines during the minimum of the sunspot activity in 1996. Astronomy and Astrophysics 334, pp. 685 - 702 (1998)
Wilhelm, K.; Marsch, E.; Dwivedi, B. N.; Hassler, D. M.; Lemaire, P.; Gabriel, A.; Huber, M. C. E.: The corona above polar coronal holes as seen by SUMER on SOHO. Astrophysical Journal 500, pp. 1023 - 1038 (1998)
Carlsson, M.; Judge, P. G.; Wilhelm, K.: SUMER Observations confirm the dynamic nature of the quiet solar outer atmosphere: The internetwork chromosphere. Astrophysical Journal 486, pp. L63 - L66 (1997)
Curdt, W.; Feldman, U.; Laming, J. M.; Wilhelm, K.; Schühle, U.; Lemaire, P.: The solar disk spectrum between 660 and 1175 Å (first order) obtained by SUMER on SOHO. Astron. Astrophys. Suppl. Ser. 126, pp. 281 - 296 (1997)
Doschek, G. A.; Mariska, J. T.; Warren, H. P.; Wilhelm, K.; Lemaire, P.; Kucera, T.; Schühle, U.: Determination of the formation temperature of Si IV in the solar transition region. Astrophysical Journal 477, pp. L119 - L122 (1997)
Doschek, G. A.; Warren, H. P.; Laming, J. M.; Mariska, J. T.; Wilhelm, K.; Lemaire, P.; Schühle, U.; Moran, T. G.: Electron densities in the solar polar coronal holes from density-sensitive line ratios of Si VIII and S X. Astrophysical Journal 482, pp. L109 - L112 (1997)
Feldman, U.; Behring, W. E.; Curdt, W.; Schühle, U.; Wilhelm, K.; Lemaire, P.; Moran, T. M.: A coronal spectrum in the 500-1610 Å wavelength range recorded at a height of 21,000 km above the west solar limb by the SUMER instrument on SOHO. Astrophysical Journal, Suppl. Ser. 113, pp. 195 - 219 (1997)
Hassler, D. M.; Wilhelm, K.; Lemaire, P.; Schühle, U.: Observations of polar plumes with the SUMER instrument on SOHO. Solar Physics 175, pp. 375 - 391 (1997)
Images from ESA’s Solar Orbiter offer the best look yet at a source region of the solar wind - and challenge our view of the continuous particle stream from the Sun.
Deciphering the magnetic origins of the Sun's hot corona: developing a framework for coronal heating by probing the elusive photosphere-corona connection
Using unique observational data and computer simulations, the MPS scientist is striving to understand the incredibly hot temperatures in the solar corona.
For the first time, images of the Sun have been taken from a distance of only 77 million kilometres enabling a completely new view of our star possible.
In his doctoral thesis, Sudip Mandal investigated how special pressure waves help maintain temperatures of several million degrees in the outermost solar atmosphere.