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Proceedings Paper

Some design and performance features of SUMER: solar ultraviolet measurements of emitted radiation
Author(s): Klaus Wilhelm; W. Curdt; E. Marsh; Udo H. Schuehle; Philippe Lemaire; Alan H. Gabriel; Jean-Claude Vial; Michael Grewing; Martin H.C. Huber; S. D. Jordan; Arthur I. Poland; Roger J. Thomas; Mikhael Kuehne; J. Gethyn Timothy; Donald M. Hassler; Oswald H. W. Siegmund
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Paper Abstract

The instrument SUMER (solar ultraviolet measurements of emitted radiation) is designed to investigate structures and associated dynamical processes occurring in the solar atmosphere from the chromosphere through the transition region to the inner corona, over a temperature range from 104 to 2 multiplied by 106 K and above. The observations will be performed, on board SOHO (solar and heliospheric observatory) scheduled for launch in November 1995, by a scanning, normal-incidence telescope/spectrometer system in the wavelength range from 500 to 1610 angstrom. Spatial resolution requirements compatible with the pointing stability of SOHO are less than 1000 km corresponding to about 1-arcsec angular resolution. Doppler observations of EUV line shifts and broadenings should permit solar plasma velocity measurements down to 1 km s-1. We report here on some specific features of this instrument related to its pointing as well as its spatial and spectral resolution capabilities.

Paper Details

Date Published: 16 October 1995
PDF: 10 pages
Proc. SPIE 2517, X-Ray and EUV/FUV Spectroscopy and Polarimetry, (16 October 1995); doi: 10.1117/12.224908
Show Author Affiliations
Klaus Wilhelm, Max-Planck-Institut fuer Aeronomie (Germany)
W. Curdt, Max-Planck-Institut fuer Aeronomie (Germany)
E. Marsh, Max-Planck-Institut fuer Aeronomie (Germany)
Udo H. Schuehle, Max-Planck-Institut fuer Aeronomie (Germany)
Philippe Lemaire, Univ. de Paris XI (France)
Alan H. Gabriel, Univ. de Paris XI (France)
Jean-Claude Vial, Univ. de Paris XI (France)
Michael Grewing, Astronomisches Institut (Germany)
Martin H.C. Huber, European Space Agency/ESTEC (Netherlands)
S. D. Jordan, NASA Goddard Space Flight Ctr. (United States)
Arthur I. Poland, NASA Goddard Space Flight Ctr. (United States)
Roger J. Thomas, NASA Goddard Space Flight Ctr. (United States)
Mikhael Kuehne, Physikalisch-Technische Bundesanstalt (Germany)
J. Gethyn Timothy, Univ. of New Brunswick (Canada)
Donald M. Hassler, High Altitude Observatory/NCAR (United States)
Oswald H. W. Siegmund, Univ. of California/Berkeley (United States)


Published in SPIE Proceedings Vol. 2517:
X-Ray and EUV/FUV Spectroscopy and Polarimetry
Silvano Fineschi, Editor(s)

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