Publications of U. Schühle

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.: Observations of the solar atmosphere from the Solar and Heliospheric Observatory (SOHO). Journal of X-Ray Science and Technology 7, pp. 249 - 255 (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)

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)

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)

Hollandt, J.; Curdt, W.; Schühle, U.; Wilhelm, K.: Sonnenradiometrie mit SUMER auf SOHO. Physikalische Blätter 53, pp. 1101 - 1105 (1997)

Hollandt, J.; Curdt, W.; Schühle, U.; Wilhelm, K.: Sonnenradiometrie mit SUMER auf SOHO. Physikalische Blätter 53, pp. 1101 - 1105 (1997)

Kink, I.; Jupén, C.; Engström, L.; Feldman, U.; Laming, M.; Schühle, U.: Laboratory identification of temperature diagnostic Si VII and S IX lines present in the solar coronal spectra measured by SUMER/SOHO. Astrophysical Journal 487, pp. 956 - 961 (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)

Lemaire, P.; Wilhelm, K.; Schühle, U.; Curdt, W.; Poland, A. I.; Jordan, S. D.; Thomas, R. J.; Hassler, D. M.; Vial, J.-C.: High resolution solar ultraviolet measurements. Advances in Space Research 20, pp. 2249 - 2258 (1997)

Seely, J. F.; Feldman, U.; Schühle, U.; Wilhelm, K.; Curdt, W.; Lemaire, P.: Turbulent velocities and ion temperatures in the solar corona obtained from SUMER line widths. Astrophysical Journal 484, pp. L87 - L90 (1997)

Wilhelm, K.; Lemaire, P.; Curdt, W.; Schühle, U.; Marsch, E.; Poland, A. I.; Jordan, S. D.; Thomas, R. J.; Hassler, D. M.; Huber, M. C. E. et al.; Vial, J.-C.; Kühne, M.; Siegmund, O. H. W.; Gabriel, A.; Timothy, J. G.; Grewing, M.; Feldman, U.; Hollandt, J.; Brekke, P.: First results of the SUMER telescope and spectrometer-solar ultraviolet measurements of emitted radiation-on SOHO, I. Spectra and Spectroradiometry. Solar Physics 170, pp. 75 - 104 (1997)

Wilhelm, K.; Lemaire, P.; Feldman, U.; Hollandt, J.; Schühle, U.; Curdt, W.: Radiometric calibration of SUMER: Refinement of the laboratory results under operational conditions on SOHO. Applied Optics 36, pp. 6416 - 6422 (1997)

Hollandt, J.; Schühle, U.; Paustian, W.; Curdt, W.; Kühne, M.; Wende, B.; Wilhelm, K.: Radiometric calibration of the telescope and ultraviolet spectrometer SUMER on SOHO. Applied Optics 35, pp. 5125 - 5133 (1996)