Performance of the HgCdTe Detector for MOSFIRE , an Imager and Multi-Object Spectrometer for Keck Observatory


MOSFIRE is a new multi-object near-infrared spectrometer for the Keck 1 telescope with a spectral resolving power of R∼3500 for a 0.7′′ slit (2.9 pixels). The detector is a substrate-removed 2K x 2K HAWAII 2-RG HgCdTe array from Teledyne Imaging Sensors with a cut-off wavelength of 2.5 μm and an operational temperature of 77K. Spectroscopy of faint objects… (More)

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