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Title:
Continuum observations of the infrared sources in the Orion molecular cloud
Authors:
Grasdalen, G. L.; Gehrz, R. D.; Hackwell, J. A.
Affiliation:
AA(Wyoming, University, Laramie, WY), AB(Wyoming, University, Laramie, WY), AC(Wyoming, University, Laramie, WY)
Publication:
In: Infrared astronomy; Proceedings of the Symposium, Kona, HI, June 23-27, 1980. (A82-33729 16-90) Dordrecht, D. Reidel Publishing Co., 1981, p. 179-186.
Publication Date:
00/1981
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL MAPS, INFRARED ASTRONOMY, MOLECULAR CLOUDS, ORION NEBULA, STELLAR EVOLUTION, CONDENSATION, CONTOURS, HYDROGEN MASERS, INTERSTELLAR MASERS, MOLECULAR ABSORPTION, SILICATES, STELLAR SPECTROPHOTOMETRY
Bibliographic Code:
1981IAUS...96..179G

Abstract

Observations of the Orion nebula infrared complex discovered by Becklin and Neugebauer (1967) and Kleinmann and Low (1967), using the Wyoming Infrared Observatory's 2.3 m telescope, are reported. A contour map of the 20 micron flux from the region is presented and the positions of visible condensations estimated. A discrepancy with previously derived positions may be due to a real temporal change related to the early phases of stellar evolution. The silicate absorption feature is studied using an array spectrometer system to map the region in six wavelength bands. Contour maps are derived and photometry is derived for the condensations appearing on the maps. The condensation regions may simply be dense knots in the nebula, not small stellar objects. Maser sources and the molecular hydrogen emission region are also briefly discussed.

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