INGRID: A near-infrared camera for the William Herschel Telescope

Physics – Optics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6

Instrumentation: Adaptive Optics, Instrumentation: Detectors, Instrumentation: High Angular Resolution, Instrumentation: Miscellaneous, Instrumentation: Photometers

Scientific paper

Rapid developments in near-infrared (NIR) arrays and adaptive optics systems have driven the development of wide-field and high-spatial-resolution, high-optical-quality NIR imagers and spectrographs, providing an unparalleled boost to NIR observations. Based around a 1024 × 1024 pixel2 Hawaii-1 array, the Isaac Newton Group Red Imaging Device (INGRID) imager provides a field of view >16 arcmin2 (at the Cassegrain focus) whilst Nyquist sampling the median summer seeing disc. When used in conjunction with the Nasmyth Adaptive Optics for Multi-Purpose Instrumentation (NAOMI) system and a second set of collimation optics, a high spatial resolution mode (0.04 arcsec pixel-1) is offered, providing near-diffraction-limited imaging. INGRID uses an all-refractive design and employs a cold stop to reduce thermal background emission, critical to the performance as it is used on the non-infrared optimized 4.2-m William Herschel Telescope (WHT). We discuss the design and operation of INGRID and illustrate its performance by discussing commissioning observations of the cluster Abell 2218 and the spiral galaxies NGC 3351 and 1530.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

INGRID: A near-infrared camera for the William Herschel Telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with INGRID: A near-infrared camera for the William Herschel Telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and INGRID: A near-infrared camera for the William Herschel Telescope will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1033679

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.