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Proceedings Paper

Studies of H Ly-alpha emissions in the solar neighborhood with the techniques of polarimetry and spatial heterodyne spectroscopy (SHS)
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Paper Abstract

Ultraviolet astronomy is an important tool for the study of the interplanetary medium and diffuse, angularly extended emissions in planetary/comet atmospheres and their near space environments. We describe a new technique for high étendue observations of emission lines at R > 105 with an all-reflective spatial heterodyne spectrometer and polarmetric sampling of these lines with an ultraviolet optimized waveplate-Brewster mirror combination. The resulting system is themo-mechanically stable, has light collecting power substantially greater than HST for extended emissions, despite having a volume of several x 10-3 m3. This makes the SHS polarimeter ideal for spacecraft applications. We describe the SHS and polarmetric optical techniques and provide a discussion of its planned development for studies of interplanetary hydrogen.

Paper Details

Date Published: 24 February 2003
PDF: 10 pages
Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, (24 February 2003); doi: 10.1117/12.460029
Show Author Affiliations
Walter M. Harris, Univ. of Wisconsin/Madison (United States)
Fred L. Roesler, Univ. of Wisconsin/Madison (United States)
Kenneth H. Nordsieck, Univ. of Wisconsin/Madison (United States)
Lotfi Ben-Jaffel, Institut d'Astrophysique Spatiale (France)
Jason Corliss, Univ. of Wisconsin/Madison (United States)

Published in SPIE Proceedings Vol. 4854:
Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation
J. Chris Blades; Oswald H. W. Siegmund, Editor(s)

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