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Proceedings Paper

Dynamical measurements of hot gas in stellar systems
Author(s): M. A. Barstow; M. P. Kowalski; R. G. Cruddace; A. Collier Cameron
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Paper Abstract

Since hot 100,000-1,000,000K gas in stars radiates predominantly at EUV and soft X-ray wavelengths, observations in these bands provide important diagnostics of the physical conditions in hot photospheres, stellar coronae and stellar winds. However, such studies are only able to examine the bulk of material, without being able to separate out the several gas components present. Radial velocity diagnostics have been used frequently in the UV and visible bands to distinguish different emission or absorption components in stellar spectra. Now, developments in grating and instrument technology provide a first opportunity to extend this technique into the EUV. Based on capabilities of the improved JPEX spectrometer (reported elsewhere in this volume), this paper reports on the key science that might be carried out with such an instrument; both as a sounding rocket payload and longer duration mission.

Paper Details

Date Published: 26 July 2006
PDF: 11 pages
Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 626606 (26 July 2006); doi: 10.1117/12.671679
Show Author Affiliations
M. A. Barstow, Univ. of Leicester (United Kingdom)
M. P. Kowalski, Naval Research Lab. (United States)
R. G. Cruddace, Naval Research Lab. (United States)
A. Collier Cameron, Univ. of St. Andrews (United Kingdom)

Published in SPIE Proceedings Vol. 6266:
Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray
Martin J. L. Turner; Günther Hasinger, Editor(s)

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