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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

February 2015 STAN
In this Newsletter we provide information to COS users on the move of most FUV spectra to LP3 and the revised spectral extraction algorithm used at that position.
COS+STIS Team 16 Feb 2015

January 2015 STAN
In this Newsletter we provide information to COS users on an updated COS FUV time-dependent sensitivity (TDS) reference file.
COS+STIS Team 22 Jan 2015

Document Archive

in the Last 45 Days