Late Breaking News
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 Å 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.
in the Last 45 Days
COS Instrument Handbook for Cycle 23
J. Debes Jan 2015
March 2015 STAN
In this Newsletter we provide updates on COS and STIS to users preparing a program for the HST Phase 1 deadline. Detailed is information about observing background limited targets with both COS and STIS, new flux calibration accuracy limitations on COS FUV observations of extended targets, Cycle 23 ETC updates, and effects of the OSM drift on the COS NUV wavelengths.
COS+STIS Team 12 Mar 2015
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