Publications of K. Wilhelm

Stucki, K.; Solanki, S. K.; Rüedi, I.; Stenflo, J. O.; Brkovic, A.; Schühle, U.; Wilhelm, K.; Huber, M. C. E.: Coronal Holes Properties Observed with SUMER. Space Science Reviews 87, pp. 315 - 318 (1999)

Stucki, K.; Solanki, S. K.; Rüedi, I.; Stenflo, J. O.; Brkovic, A.; Schühle, U.; Wilhelm, K.; Huber, M. C. E.: Coronal holes versus normal quiet Sun observed with SUMER. Astrophysics and Space Science 264, pp. 53 - 61 (1999)

Tu, C.-Y.; Marsch, E.; Wilhelm, K.: Ion Temperatures as Observed in a Solar Coronal Hole. Space Science Reviews 87, pp. 331 - 334 (1999)

Wiik, J. E.; Dammasch, I. E.; Schmieder, B.; Wilhelm, K.: Multiple-thread model of a prominence observed by SUMER and EIT on SOHO. Solar Physics 187, pp. 405 - 426 (1999)

Wilhelm, K.: The darkest regions of solar polar coronal holes observed by SUMER on SOHO. Astrophysics and Space Science 264, pp. 43 - 52 (1999)

Wilhelm, K.; Dammasch, I. E.: SUMER sieht Ursprung des schnellen Sonnenwindes. Sterne unda Weltraum 38 (5/99), pp. 430 - 431 (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.; the Consortium, S.: Beobachtungen der ruhigen Sonne im ultravioletten Licht. Sterne und Weltraum 38 (2/99), pp. 131 - 137 (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)

Banerjee, D.; Teriaca, L.; Doyle, J. G.; Wilhelm, K.: Broadening of Si VIII lines observed in the solar polar coronal holes. Astronomy and Astrophysics 339, pp. 208 - 214 (1998)

Brynildsen, N.; Brekke, P.; Fredvik, T.; Haugan, S. V. H.; Kjeldseth-Moe, O.; Maltby, P.; Harrison, R. A.; Pike, C. D.; Rimmele, T.; Thompson, W. T. et al.; Wilhelm, K.: EUV spectroscopy of the sunspot region NOAA 7981 using SOHO. I. Line emission and time dependence. Solar Physics 179, pp. 43 - 74 (1998)

Brynildsen, N.; Brekke, P.; Fredvik, T.; Haugan, S. V. H.; Kjeldseth-Moe, O.; Maltby, P.; Harrison, R. A.; Pike, C. D.; Rimmele, T.; Thompson, W. T. et al.; Wilhelm, K.: EUV spectroscopy of the sunspot region NOAA 7981 using SOHO. II. Velocities and line profiles. Solar Physics 179, pp. 279 - 312 (1998)

Brynildsen, N.; Brekke, P.; Fredvik, T.; Haugan, S. V. H.; Kjeldseth-Moe, O.; Maltby, P.; Harrison, R. A.; Wilhelm, K.: SOHO observations of the connection between line profile parameters in active and quiet regions and the net red shift in EUV emission lines. Solar Physics 181, pp. 23 - 50 (1998)

Budnik, F.; Schröder, K.-P.; Wilhelm, K.; Glassmeier, K.-H.: Observational evidence for coronal mass injection by ``evaporation'' of spicular plasma. Astronomy and Astrophysics 334, pp. L77 - L80 (1998)

David, C.; Gabriel, A. H.; Bely-Dubau, F.; Fludra, A.; Lemaire, P.; Wilhelm, K.: Measurement of the electron temperature gradient in a solar coronal hole. Astronomy and Astrophysics 336, pp. L90 - L94 (1998)

Doschek, G. A.; Feldman, U.; Laming, J. M.; Warren, H. P.; Schühle, U.; Wilhelm, K.: The electron pressure in the solar lower transition region determined from O V and Si III density-sensitive line ratios. Astrophysical Journal 507, pp. 991 - 996 (1998)

Doschek, G. A.; Laming, J. M.; Feldman, U.; Wilhelm, K.; Lemaire, P.; Schühle, U.; Hassler, D. M.: The Si/Ne abundance ratio in polar coronal hole and quiet-Sun coronal regions. Astrophysical Journal 504, pp. 573 - 587 (1998)

Erdélyi, R.; Doyle, J. G.; Perez, M. E.; Wilhelm, K.: Center-to-limb line width measurements of solar chromospheric, transition region and coronal lines. Astronomy and Astrophysics 337, pp. 287 - 293 (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)