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New Gapless COS G140L Mode Proposed for Background-limited Far-UV Observations

Anderson, Scott F.; France, Kevin; Fleming, Brian +6 more

Here we describe the observation and calibration procedure for a new G140L observing mode for the Cosmic Origins Spectrograph (COS) on board the Hubble Space Telescope (HST). This mode, CENWAV = 800, is designed to move the far-UV band fully onto the Segment A detector, allowing for more efficient observation and analysis by simplifying calibratio…