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Hubble Space Telescope
Cosmic Origins Spectrograph

Cosmic Origins Spectrograph

The Cosmic Origins Spectrograph (COS) was installed on the Hubble Space Telescope (HST) in May 2009. COS is designed to perform high-sensitivity, medium- and low-resolution spectroscopy of astronomical objects in the 1150-3200 wavelength range. COS significantly enhances the spectroscopic capabilities of HST at ultraviolet wavelengths, providing observers with unparalleled opportunities for observing faint sources of ultraviolet light.

The primary science objectives of the mission are the study of the origins of large scale structure in the Universe, the formation and evolution of galaxies, the origin of stellar and planetary systems, and the cold interstellar medium.

More information and documentation on the Cosmic Origins Spectrograph can be found at CASA, the University of Colorado's Center for Astrophysics and Space Astronomy, Ball Aerospace, and the Experimental Astrophysics Group at the University of California - Berkeley.

Documents Added
in the Last 45 Days

COS Instrument Handbook for Cycle 22 S.T Holland 06 Jan 2014

August 2014 STAN
In this STAN we provide information to STIS users on Readnoise for GAIN=1.
COS+STIS Team 07 Aug 2014

ISR 2013-13: COS/FUV Characterization of Optical Effects at Potential Lifetime Positions
In this document we provide a summary of the analysis performed on data obtained as part of program 12678, "COS/FUV Characterization of Optical Effects". Changes to throughput, resolution and gain as a function of position were evaluated and compared to raytrace models
D. Sahnow 29 Jul 2014

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