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

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

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 o...

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Veröffentlicht in:Publications of the Astronomical Society of the Pacific 2016-10, Vol.128 (968), p.1-8
Hauptverfasser: Redwine, Keith, McCandliss, Stephan R., Zheng, Wei, Fleming, Brian, France, Kevin, Osterman, Steven, Howk, J. Chistopher, Anderson, Scott F., Gäensicke, Boris T.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectra
Astronomical Instrumentation, Telescopes, Observatories, and Site Characterization
Astronomy
Calibration
Centroids
Hubble Space Telescope
Line spectra
Physics
Pixels
Red shift
Wavelengths
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Zusammenfassung: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 calibration management between the two channels, and reducing the astigmatism in this wavelength region. We also describe some of the areas of scientific interest for which this new mode will be especially suited.
ISSN:0004-6280
1538-3873