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Hubble Space Telescope
Cosmic Origins Spectrograph

Late Breaking News

February 2017 STAN
In this STAN we announce the release of an updated NUV DISPTAB as well as recommendations for optimal NUV extraction box heights.
COS Team 24 Feb 2017

News Archive

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 25
A. Fox Jan 2017

February 2017 STAN
In this STAN we announce the release of an updated NUV DISPTAB as well as recommendations for optimal NUV extraction box heights.
COS Team 24 Feb 2017

ISR 2017-01: Bright Object Protection (BOP) Considerations for M Dwarf Flare Events
We provide clear and concise guidance for Guest Observers and Contact Scientists to evaluate the health and safety of the instrument when observing M dwarfs, taking into consideration current scientific research about the frequency with which large flare events occur, and a risk tolerance level for causing an inadvertent detector shutdown due to overlight conditions from a large flare during an observation.
R. Osten 16 Feb 2017 (pdf)

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