Pinfield, D. J.; Keenan, F. P.; Mathioudakis, M.; Phillips, K. H. J.; Curdt, W.; Wilhelm, K.: Evidence for non-Maxwellian electron energy distributions in the solar transition region: Si III line ratios from SUMER. Astrophysical Journal 527, pp. 1000 - 1008 (1999)
Schühle, U.; Curdt, W.; Wilhelm, K.; Solanki, S. K.; Stucki, K.: Signatures of coronal hole spectra between 660 and 1460 Å measured with SUMER on SOHO. Space Science Reviews 87, pp. 299 - 302 (1999)
Wilhelm, K.; Lemaire, P.; Dammasch, I. E.; Hollandt, J.; Schühle, U.; Curdt, W.; Kucera, T.; Hassler, D. M.; Huber, M. C. E.: Solar irradiances of UV and EUV lines during the minimum of the sunspot activity in 1996. Advances in Space Research 24, pp. 229 - 232 (1999)
Wilhelm, K.; Woods, T. N.; Schühle, U.; Curdt, W.; Lemaire, P.; Rottman, G. J.: The solar ultraviolet spectrum from 1200 Å to 1560 Å: A radiometric comparison between SUMER/SOHO and SOLSTICE/UARS. Astronomy and Astrophysics 352, pp. 321 - 326 (1999)
Curdt, W.; Heinzel, P.: Dynamic behavior of the upper solar atmosphere: SUMER/SOHO observations of hydrogen Lyman lines. Astrophysical Journal 503, pp. L95 - L100 (1998)
Feldman, U.; Curdt, W.; Doschek, G. A.; Schühle, U.; Wilhelm, K.; Lemaire, P.: High-temperature lines in SUMER spectra recorded above a bright solar active region. Astrophysical Journal 503, pp. 467 - 474 (1998)
Hollandt, J.; Schühle, U.; Curdt, W.; Dammasch, I. E.; Lemaire, P.; Wilhelm, K.: Solar radiometry with the telescope and vacuum-ultraviolet spectrometer SUMER on the Solar and Heliospheric Observatory (SOHO). Metrologia 35, pp. 671 - 675 (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)
Pinfield, D. J.; Mathioudakis, M.; Keenan, F. P.; Phillips, K. J. H.; Curdt, W.: The O V 1213.9 Å forbidden line in the quiet Sun. Astronomy and Astrophysics 340, pp. L15 - L17 (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)
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)
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)
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)
Laming, J. M.; Feldman, U.; Schühle, U.; Lemaire, P.; Curdt, W.; Wilhelm, K.: Electron density diagnostics for the solar upper atmosphere from spectra obtained by SUMER/SOHO. Astrophysical Journal 485, pp. 911 - 919 (1997)
Lemaire, P.; Wilhelm, K.; Curdt, W.; Schühle, U.; Marsch, E.; Poland, A. I.; Jordan, S. D.; Thomas, R. J.; Hassler, D. M.; Vial, J.-C.et al.; Kühne, M.; Huber, M. C. E.; Siegmund, O. H. W.; Gabriel, A.; Timothy, J. G.; Grewing, M.: First results of the SUMER telescope and spectrometer on SOHO: II. Imagery and data management. Solar Physics 170, pp. 105 - 122 (1997)
Application deadline 1 October 2024. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...
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.
In analyzing solar observations from the 19th century, scientists are turning to amateur researchers for help. The project will allow to better understand the history of our star.
Astronomical teamwork: By combining data from Solar Orbiter and SDO, a group of researchers has unambiguously determined the magnetic field at the solar surface.
Application deadline 1 October 2023. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...
Philipp Löschl has co-authored an excellent publication on Solar Orbiter data which has been awarded best Solar Physics paper of 2022 (Gherardo Valori et al. 2022)