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Observations of Unidentified Lines

Published online by Cambridge University Press:  04 August 2017

B. E. Turner*
Affiliation:
National Radio Astronomy Observatory, Charlottesville, Virginia U.S.A.

Abstract

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The three existing spectral surveys in the 3 mm window are compared. the NRAO and BTL surveys of SgrB2 are quite consistent, the NRAO and Onsala surveys of Ori(KL) less so. Lists of U-lines are assembled from the three surveys, and total 86 in Ori(KL), 66 in SgrB2, of which only 12 are common. Difficulties in selecting reliable lists of U lines are emphasized. Methods of identifying such lines include “direct,” “hybrid,” and “Shotgun” approaches; the probability of misidentification is analyzed for each. the “Shotgun” method is least reliable, although a few candidates should be followed up.

Type
Interstellar Medium
Copyright
Copyright © Reidel 1987 

References

Cummins, S. E., Linke, R. A., and Thaddeus, P. 1986, Ap. J. (Suppl.), in press.Google Scholar
Johannsson, L.E.B., Andersson, C., Ellder, J., Friberg, P., Hjalmarson, A., Hoglund, B., Irvine, W. M., Olofsson, H., and Rydbeck, G., 1984, Astron. and Astrophys. 130, 227.Google Scholar
op. cit. 1985, Astron. and Astrophys. (Suppl.), in press.Google Scholar
Lovas, F. J. 1984, Spectral Line Atlas for Interstellar Molecules, SLAIM Magnetic Tape Version I-84, private communication.Google Scholar
Lovas, F. J. 1985, J. Phys. Chem. Ref. Data, in press.Google Scholar
Turner, B. E. 1979, in Interstellar Molecules, Ed. Andrew, B., D. Reidel.Google Scholar
Turner, B. E. 1983, Ap. Letters 23, 217.Google Scholar