Preliminary calibration results for the HST/cosmic origins spectrograph

Erik Wilkinson; Stephane Beland; Cynthia S. Froning; James C. Green; Steven N. Osterman; Steven V. Penton; Thomas Delker; Dennis Ebbets; Adrian Martin; Jason McPhate; John V. Vallerga; Scott D. Friedman; George Hartig; Charles Keyes; Claus Leitherer; Kenneth Sembach; David J. Sahnow

doi:10.1117/12.505870

8 December 2003 Preliminary calibration results for the HST/cosmic origins spectrograph

Erik Wilkinson, Stephane Beland, Cynthia S. Froning, James C. Green, Steven N. Osterman, Steven V. Penton, Thomas Delker, Dennis Ebbets, Adrian Martin, Jason McPhate, John V. Vallerga, Scott D. Friedman, George Hartig, Charles Keyes, Claus Leitherer, Kenneth Sembach, David J. Sahnow

Author Affiliations +

Proceedings Volume 5164, UV/EUV and Visible Space Instrumentation for Astronomy II; (2003) https://doi.org/10.1117/12.505870
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We present the preliminary calibration results for the Cosmic Origins Spectrograph, a fourth generation replacement instrument for the Hubble Space Telescope due to be installed in mid-2005. The Cosmic Origins Spectrograph consists of two spectroscopic channels: a far ultraviolet channel that observes wavelengths between 1150 and 2000 Åand a near ultraviolet channel that observes between 1700 and 3200 Å. Each channel supports moderate (R≈20,000) and low (R≈2000) spectral resolution. We discuss the calibration methodology, test configurations, and preliminary end-to-end calibration results. This includes spectral resolution, system efficiency, flat fields, and wavelength scales for each channel. We also present the measured transmission of the Bright Object Aperture (BOA) and the measured spatial resolution.

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Erik Wilkinson, Stephane Beland, Cynthia S. Froning, James C. Green, Steven N. Osterman, Steven V. Penton, Thomas Delker, Dennis Ebbets, Adrian Martin, Jason McPhate, John V. Vallerga, Scott D. Friedman, George Hartig, Charles Keyes, Claus Leitherer, Kenneth Sembach, and David J. Sahnow "Preliminary calibration results for the HST/cosmic origins spectrograph", Proc. SPIE 5164, UV/EUV and Visible Space Instrumentation for Astronomy II, (8 December 2003); https://doi.org/10.1117/12.505870

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