Orion A Emission-Line Surveys (Jewell+ 1989)

Astronomy and Astrophysics – Astronomy

Scientific paper

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Radio Sources, Surveys

Scientific paper

This catalog comprised surveys of the Orion A molecular emission lines from 200.7-202.3, 203.7-205.3, and 330.5-360.1 GHz. These surveys were done by using the 12m radio telescope of the National Radio Astronomy Observatory (NRAO). For the 870microns (um) atmospheric window, about 160 distinct spectral features composed of nearly 180 lines were detected. For the other two bands 42 distinct, new spectral lines were detected. The new interstellar lines in the survey bands were tabulated in FITS format. This new data base would be a useful resource for further analyses of abundances and excitation of known Orion A species and for determining unidentified lines for use in molecule identification. The single-dish FITS format in FITS table extension was adopted to create this catalog. The data were tabulated in the order of Figures 1-39, including both the unshifted and shifted spectra in each figure (Jewell et al., 1989). Single Dish header parameters were represented in the table's header, and the data comprised the actual table in ASCII. Various FITS Tables keywords were given in great detail for describing the format of the table and how a computer program could read it.
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