Uv Meteor Spectroscopy From The Space Shuttle's Cargo Bay

Stephen Bimal Achal; Clifford D. Anger; E. Harvey Richardson

doi:10.1117/12.968083

13 October 1986 Uv Meteor Spectroscopy From The Space Shuttle's Cargo Bay

Stephen Bimal Achal, Clifford D. Anger, E. Harvey Richardson

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Proceedings Volume 0627, Instrumentation in Astronomy VI; (1986) https://doi.org/10.1117/12.968083
Event: 1986 Astronomy Conferences, 1986, Tucson, United States

Abstract

The University of Calgary is working in conjunction with DAO (Dominion Astrophysical Observatory) and NRCC (National Research Council of Canada) to develop an experiment capable of performing UV (200-300 nm) spectroscopy on meteors. In order to perform UV spectroscopy on meteors successfully. The experiment must operate outside the earth's atmosphere because atmospheric ozone strongly attenuates UV shorter than 300 nm. NASA's GAS (Get Away Special) program has provided the University with an invaluable opportunity to place its experiment on a future shuttle flight. They will provide a cannister (5 cubic feet) in which to enclose the experiment. The GAS cannister will be attached to the inside of the shuttle's cargo bay. The spectroscope that will be used in the experiment will consist of an f/1.0 4.6 cm spectrographic camera (initially used on the 72-inch telescope at DAO), a Cs2Te MCP image intensifier and a CCD camera. The spectroscope will have a spectral resolution of 1 nm per pixel and a field of view of 13° x 10°. By studying meteors in the UV, it will be possible to detect the spectral lines of elements and compounds that have lines in the visual and near IR region coinciding with very strong fe and Ca lines. In the mid-uv, there exists an "iron-window", an under abundance of strong Fe lines. This window will permit the detection of Be, Zn and possibly B, all of which were previously undetected in meteor spectra. Thus, a comprehensive survey of meteor composition, derived from the meteors' UV spectra, will supplement previously existing data in the visual and near IR. These data will provide vital clues as to the origins of meteors.

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Stephen Bimal Achal, Clifford D. Anger, and E. Harvey Richardson "Uv Meteor Spectroscopy From The Space Shuttle's Cargo Bay", Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); https://doi.org/10.1117/12.968083

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KEYWORDS

Ultraviolet radiation

Spectroscopy

Cameras

UV-Vis spectroscopy

Sensors

Photography

Spectroscopes

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