Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21813210b&link_type=abstract
American Astronomical Society, AAS Meeting #218, #132.10; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astrophysics
Scientific paper
A wide variety of astrophysical sources (cool brown dwarfs and exoplanets, obscured Galactic regions, high redshift SN/GRBs) are only accessible and/or characterizable at near-infrared (NIR) wavelengths. The development and declining costs of wide-format NIR detectors makes their use on 3-5m class telescopes for survey and synoptic studies an increasingly viable option. We describe a conceptual design study for a multichannel, NIR imager/spectrometer for the Shane 3m telescope at Lick Observatory, aimed to replace the existing Gemini camera (McLean et al. 1993). We perform a scientific cost/benefit analysis of various instrumentation features, including: tradeoffs in field-of-view, angular resolution and sensitivity; tradeoffs in long-wavelength detector cutoffs, cooling requirements and site environment; filter complement; capability for multiple dichroic options; inclusion of grism spectroscopy and polarimetry capabilities, and the option of a third optical (CCD) channel. We also examine these considerations in the context of existing 1-5m class NIR instrumentation, and identify areas in which the proposed instrument would enable unique and novel science.
Bowsher Emily C.
Burgasser Adam
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