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arxiv: 1012.5827 · v1 · pith:OX3FK557new · submitted 2010-12-28 · 🌌 astro-ph.IM

The Cosmic Origins Spectrograph: On-Orbit Instrument Performance

S. Osterman , J. Green , C. Froning , S. B\'eland , E. Burgh , K. France , S.Penton , T. Delker
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D. Ebbets D. Sahnow J. Bacinski R. Kimble J. Andrews E. Wilkinson J. McPhate O. Siegmund T. Ake A. Aloisi C. Biagetti R. Diaz W. Dixon S. Friedman P. Ghavamian P. Goudfrooij G. Hartig C. Keyes D. Lennon D. Massa S. Niemi C. Oliveira R. Osten C. Proffitt T. Smith D. Soderblom
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keywords spectrographcosmicinstrumentmissionoriginsperformanceservicingapproaching
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The Cosmic Origins Spectrograph (COS) was installed in the Hubble Space Telescope in May, 2009 as part of Servicing Mission 4 to provide high sensitivity, medium and low resolution spectroscopy at far- and near-ultraviolet wavelengths (FUV, NUV). COS is the most sensitive FUV/NUV spectrograph flown to date, spanning the wavelength range from 900{\AA} to 3200{\AA} with peak effective area approaching 3000 cm^2. This paper describes instrument design, the results of the Servicing Mission Orbital Verification (SMOV), and the ongoing performance monitoring program.

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