Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..207..472i&link_type=abstract
IN: Astrophysics from the moon; Proceedings of the Workshop, Annapolis, MD, Feb. 5-7, 1990 (A91-56576 24-89). New York, American
Astronomy and Astrophysics
Astrophysics
Astronomical Observatories, Infrared Telescopes, Lunar Based Equipment, Ultraviolet Telescopes, Diffraction Limited Cameras, Spatial Resolution, Zodiacal Dust
Scientific paper
A 16 m passively-cooled, diffraction-limited, filled-aperture lunar-based telescope would have unprecedented power for tackling a wide range of the most fundamental astrophysical problems, from the detection of earthlike planets to the structure of (forming?) galaxies at z greater than 1. The telescope would have a lightweight, segmented primary with active wavefront sensing and control for diffraction-limited performance into the UV. The structure and optics would be passively-cooled to 100 K, lowering the background in the 3-4 microns zodiacal window to less than 10 to the -6th of that from the ground. State-of-the-art mosaics of detectors would give diffraction-limited imaging and spectroscopy over a field greater than 2 arcmin from 0.3 microns to beyond 10 microns, and to nearly 1 arcmin in the UV. The observatory would combine remarkable imaging performance, with resolutions ranging from 2-3 mas in the UV to some 40-60 mas in the zodiacal window at 3 microns, with even greater capability for spectrographic observations of faint and/or low surface brightness objects at the highest spatial resolution.
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