Computer Science – Performance
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924116e&link_type=abstract
American Astronomical Society, AAS Meeting #219, #241.16
Computer Science
Performance
Scientific paper
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. Provided here is an update on some aspects of detector performance and current calibration projects from Cycle 18 along with new additions for the upcoming Cycle 19. Included are discussions on the detector dark current, time dependent sensitivity, and recent and upcoming additions to CalCOS. We also present initial characteristics of a new G130M/1222 central wavelength setting for the Far-Ultraviolet (FUV) channel. This new mode, available in Cycle 20, provides a resolving power of R>10,000 from 1065 to 1365 angstroms while placing the damaging flux of the LyA airglow line in the gap between detector segments A and B.
Aloisi Alessandra
Bostroem Kim
Ely Justin
Hodge Paul
Massa Derck
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