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11.
G. Noci J.L. Kohl E. Antonucci G. Tondello M.C.E. Huber S. Fineschi L.D. Gardner G. Naletto P. Nicolosi J.C. Raymond M. Romoli D. Spadaro O.H.W. Siegmund C. Benna A. Ciaravella S. Giordano J. Michels A. Modigliani A. Panasyuk C. Pernechele G. Poletto P.L. Smith L. Strachan 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1997,20(12):2219-2230
We present here the first results obtained by the Ultraviolet Coronagraph Spectrometer (UVCS) operating on board the SOHO satellite. The UVCS started to observe the extended corona at the end of January 1996; it routinely obtains coronal spectra in the 1145 Å – 1287 Å, 984 Å – 1080 Å ranges, and intensity data in the visible continuum. Through the composition of slit images it also produces monocromatic images of the extended corona. The performance of the instrument is excellent and the data obtained up to now are of great interest. We briefly describe preliminary results concerning polar coronal holes, streamers and a coronal mass ejection, in particular: the very large r.m.s. velocities of ions in polar holes (hundreds km/sec for OVI and MgX); the puzzling difference between the HI Ly- image and that in the OVI resonance doublet, for most streamers; the different signatures of the core and external layers of the streamers in the width of the ion lines and in the OVI doublet ratio, indicating larger line-of-sight (l.o.s.) and outflow velocities in the latter. 相似文献
12.
Pauluhn A. Solanki S.K. Schühle U. Wilhelm K. Lang J. Thompson W.T. Rüedi I. Hollandt J. Huber M.C.E. 《Space Science Reviews》2001,97(1-4):63-66
Space Science Reviews - Since the beginning of the SOHO (Solar and Heliospheric Observatory) mission an intercalibration programme was carried out which included simultaneous observations of the... 相似文献
13.
H.P. Roeser F. Hetfleisch F.M. Huber M.F. von Schoenermark M. Stepper A. Moritz A.S. Nikoghosyan 《Acta Astronautica》2008,63(11-12):1372-1375
It is suggested that oxygen excess in undoped material of the high temperature superconducting bismuth family creates periodic two-dimensional Cu3+-ion patches in the copper–oxygen planes. These nanostructures have a size of square and show a strong linear relationship to their critical transition temperatures Tc. 相似文献
14.
Space Science Reviews - 相似文献
15.
H.P. Roeser P. Leschinski F.M. Huber M.F. von Schoenermark A.S. Nikoghosyan M. Toberman 《Acta Astronautica》2009,64(9-10):1011-1013
Oxygen deficiency in the iron-based HTSC GdFeAsO1?δ seems to create a parallelogram shaped Fe2+-ion/oxygen deficiency pattern in the Fe2O2 plane in c-direction. These two-dimensional nanostructures form superconducting current channels which are separated by h=0.828 nm. The doping distance in direction of the super-current shows a strong correlation to the transition temperature. 相似文献
16.
Toshinori Kuwahara Felix Bhringer Albert Falke Jens Eickhoff Felix Huber Hans-Peter Rser 《Acta Astronautica》2009,65(11-12):1616-1627
Flying Laptop is the first small satellite developed by the Institute of Space Systems at the Universität Stuttgart. It is a test bed for an on-board computer with a reconfigurable, redundant and self-controlling high computational ability based on the field programmable gate arrays (FPGAs). This Technical Note presents the operational concept and the on-board payload data processing of the satellite. The designed operational concept of Flying Laptop enables the achievement of mission goals such as technical demonstration, scientific Earth observation, and the payload data processing methods. All these capabilities expand its scientific usage and enable new possibilities for real-time applications. Its hierarchical architecture of the operational modes of subsystems and modules are developed in a state-machine diagram and tested by means of MathWorks Simulink-/Stateflow Toolbox. Furthermore, the concept of the on-board payload data processing and its implementation and possible applications are described. 相似文献