Sounding rocket payload designed for investigations of the distribution and dynamics of the hot component of the interstellar medium using a field-widened spatial heterodyne spectrometer

John M. Harlander; Huan Tran; Fred L. Roesler; Kurt P. Jaehnig; Steve Watchorn; Wilton T. Sanders III; Ronald J. Reynolds

doi:10.1117/12.218372

1 September 1995 Sounding rocket payload designed for investigations of the distribution and dynamics of the hot component of the interstellar medium using a field-widened spatial heterodyne spectrometer

John M. Harlander, Huan Tran, Fred L. Roesler, Kurt P. Jaehnig, Steve Watchorn, Wilton T. Sanders III, Ronald J. Reynolds

Author Affiliations +

Proceedings Volume 2518, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI; (1995) https://doi.org/10.1117/12.218372
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We are developing a field-widened spatial heterodyne spectrometer (SHS) for suborbital observations of the hot component of the diffuse interstellar medium. Our goal for these observations is to obtain the first velocity-resolved (20 km/s) line profiles of the C IV 154.8, 5.1 nm emission line from the Cygnus loop and from one direction at high galactic latitude. Long term, our interest is to develop an SHS instrument for a radial-velocity-resolved sky survey of the 10⁵ K 'coronal gas' in the interstellar medium using a small satellite. This paper reviews the scientific motivation and SHS concept and then discusses in more detail the optical design of the sounding rocket payload and the data taking strategy for the observations.

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John M. Harlander, Huan Tran, Fred L. Roesler, Kurt P. Jaehnig, Steve Watchorn, Wilton T. Sanders III, and Ronald J. Reynolds "Sounding rocket payload designed for investigations of the distribution and dynamics of the hot component of the interstellar medium using a field-widened spatial heterodyne spectrometer", Proc. SPIE 2518, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI, (1 September 1995); https://doi.org/10.1117/12.218372

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