Mid-IR Capabilities of the Gemini Telescopes

Computer Science – Performance

Scientific paper

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Scientific paper

The telescopes and instruments of Gemini have been designed from the ground up to deliver excellent performance in the infrared regime. This is particularly true for the mid-IR where the low emissivity of the telescopes boosts the raw sensitivity of the instruments, and the instruments take advantage of this by delivering diffraction-limited images with high strehl the majority of the time. The facility instruments MICHELLE and T-ReCS both provide sub-arcsecond imaging (<0.4" at 10 microns) through a suite of broad and narrowband filters as well as R=100 and 1000 spectroscopy at both 10 and 20 microns. MICHELLE also has a R 20000 echelle spectroscopy mode as well as a unique imaging polarimetry mode. The visiting instrument TEXES extends our spectroscopic capabilities to R 100000. Although mid-IR observing from the ground has always been a daunting task, Gemini has made strides in all fronts to integrate the mid-IR instruments into the overall observing queue. While there are remaining issues to deal with, both Gemini North and South are now routinely delivering high-quality mid-IR data to PI's within the partnership.

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