ISR 2020-05: Testing for Systematics when moving the COS Aperture Block
July 10, 2020A. Fox
About COS
The Cosmic Origins Spectrograph (COS) was installed on the Hubble Space Telescope (HST) in May 2009. COS performs high-sensitivity, medium- and low-resolution spectroscopy of astronomical objects in the 815-3200 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 instrument 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.
This COS spectrum of a massive star in the LMC encodes information about the properties of its stellar wind, the intervening interstellar and circum-galactic media, enabling a wide range of legacy studies.
Current Status
COS/FUV is operating nominally.
COS/NUV is operating nominally.
Helpful Links
Program Information
COS Instrument Resources
Recent News
Recently Published Documents
Instrument Science Reports (ISRs)
Listing Results
Results: 5
ISR 2020-04: Cycle 26 COS NUV Wavelength Scale Monitor
June 16, 2020W. Fischer
ISR 2020-03: Cycle 26 COS FUV Wavelength Scale Monitor
June 08, 2020W. Fischer
ISR 2020-02: Cycle 26 COS NUV Spectroscopic Sensitivity Monitor
June 08, 2020W. Fischer
ISR 2020-01: Summary of COS Cycle 26 Calibration Plan
May 29, 2020B. James