The Cosmic Origins Spectrograph - Instrument Overview

Details The Cosmic Origins Spectrograph - Instrument Overview The Cosmic Origins Spectrograph - Instrument Overview

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21546422o&link_type=abstract

American Astronomical Society, AAS Meeting #215, #464.22; Bulletin of the American Astronomical Society, Vol. 42, p.502

Astronomy and Astrophysics

Astronomy

Scientific paper

We present an overview of design and capabilities of the Cosmic Origins Spectrograph (COS), a fourth generation instrument installed aboard the Hubble Space Telescope in May 2009 as part of Servicing Mission 4. COS is an ultraviolet spectrograph optimized for observing faint point sources with moderate spectral resolution of up to R 20,000 between 1150Å and 3200Å. COS is the most sensitive ultraviolet spectrograph flown to date, with a peak effective area of 3000 sq. cm. and as much as 10 sq. cm. at wavelengths as short as 950Å in the low resolution channel. COS's sensitivity advantage is particularly evident in the far ultraviolet channel, where COS is 10 to 30 times more sensitive than STIS.

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