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CHESS: An innovative concept for high-resolution, far-UV spectroscopy

Hoadley, Keri and France, Kevin and Nell, Nicholas and Kane, Robert and Fleming, Brian and Youngblood, Allison and Beasley, Matthew (2020) CHESS: An innovative concept for high-resolution, far-UV spectroscopy. Experimental Astronomy, 50 (2-3). pp. 233-264. ISSN 0922-6435. https://resolver.caltech.edu/CaltechAUTHORS:20200909-075331171

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Abstract

The space ultraviolet (UV) is a critical astronomical observing window, where a multitude of atomic, ionic, and molecular signatures provide crucial insight into planetary, interstellar, stellar, intergalactic, and extragalactic objects. The next generation of large space telescopes require highly sensitive, moderate-to-high resolution UV spectrograph. However, sensitive observations in the UV are difficult, as UV optical performance and imaging efficiencies have lagged behind counterparts in the visible and infrared regimes. This has historically resulted in simple, low-bounce instruments to increase sensitivity. In this study, we present the design, fabrication, and calibration of a simple, high resolution, high throughput FUV spectrograph - the Colorado High-resolution Echelle Stellar Spectrograph (CHESS). CHESS is a sounding rocket payload to demonstrate the instrument design for the next-generation UV space telescopes. We present tests and results on the performance of several state-of-the-art diffraction grating and detector technologies for FUV astronomical applications that were flown aboard the first two iterations of CHESS. The CHESS spectrograph was used to study the atomic-to-molecular transitions within translucent cloud regions in the interstellar medium (ISM) through absorption spectroscopy. The first two flights looked at the sightlines towards α Virgo and


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/s10686-020-09670-zDOIArticle
https://arxiv.org/abs/2008.06575arXivDiscussion Paper
ORCID:
AuthorORCID
Hoadley, Keri0000-0002-8636-3309
France, Kevin0000-0002-1002-3674
Nell, Nicholas0000-0001-7131-7978
Kane, Robert0000-0002-6626-395X
Fleming, Brian0000-0002-2129-0292
Youngblood, Allison0000-0002-1176-3391
Additional Information:© 2020 Springer. Received 01 September 2018; Accepted 03 August 2020; Published 01 October 2020. We acknowledge the hard work and dedication of the NASA WFF/NSROC payload team, the Physical Sciences Laboratory at New Mexico State University, and the Navy team at WSMR that supported the NASA/CU 36.297 UG. We thank the referee of this manuscript for their helpful suggestions and points where further clarification was warranted. KH would like to acknowledge the generous support and guidance from Prof. Jim Green, Ted Schultz, Michael Kaiser, and the University of Colorado UV sounding rocket research group during the build and operations of CHESS-I and CHESS-II. KH would also like to thank Dr. Nicholas Kruczek, Jacob Wilson, Jack Swanson, and Nicholas Erickson for each of their individual contributions and achievements that led to a successful CHESS-II flight, subsequent CHESS successes, and their invaluable moral support before, during, and after the mission. KH acknowledges support by the David & Ellen Lee Postdoctoral Fellowship in Experiment Physics at Caltech. This research was funded by the NASA Astrophysics Research and Analysis (APRA) grant NNX13AF55G. AY acknowledges support by an appointment to the NASA Postdoctoral Program at Goddard Space Flight Center, administered by the Universities Space Research Association through a contract with NASA.
Funders:
Funding AgencyGrant Number
David and Ellen Lee Postdoctoral ScholarshipUNSPECIFIED
NASANNX13AF55G
NASA Postdoctoral ProgramUNSPECIFIED
Subject Keywords:Instrumentation: spectrographs - ISM: abundances Clouds Molecules - stars: individual (ϵ Per (HD 24760))
Issue or Number:2-3
Record Number:CaltechAUTHORS:20200909-075331171
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200909-075331171
Official Citation:Hoadley, K., France, K., Nell, N. et al. CHESS: An innovative concept for high-resolution, far-UV spectroscopy. Exp Astron 50, 233–264 (2020). https://doi.org/10.1007/s10686-020-09670-z
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105287
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Sep 2020 16:40
Last Modified:20 Oct 2020 15:56

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