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DAV93B - An OH mainline maser survey of IRAS circumstellar envelope sources

Short title: David et al. (1993)
Authors: David, P. Le Squeren, A. M. Sivagnanam, P. Braz, M. A.
Journal: Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 98, no. 2, p. 245-260.
Bibcode:

Abstract
We present the results of a survey in the OH mainline at 1667 MHz. Because this line is generally weak in the OH/IR stars, systematic surveys of the mainline maser have not been previously performed. A total of 131 sources were detected out of which 108 were previously unknown. The 1667 MHz profile in OH/IR stars is similar in form to that of the 1612 MHz emission, and the relevant maser properties have been measured under the assumption of the habitual radially expanding envelope model for circumstellar envelopes. We show that the mainline maser is still present in circumstellar envelopes with cool (60/25) colors its detection is, in fact, higher for such colors. Summary detection rates are given.	Comments: Spectral type was set to: """"S"""", where only one peak was found. """"D"""", where two peaks were found. IRAS 08005+2356 renamed as IRAS 08005-2356 IRAS 17392-2722 attributed to IRAS 17393-2727 IRAS 17456-2037 renamed as IRAS 17456-2037A (tentative detection) IRAS 18033-2111 (second object) renamed as IRAS 18033-2111A IRAS 18044-1947 (second object) renamed as IRAS 18044-1947A IRAS 18125-1631 (tentative detection) IRAS 18195-2804 renamed as IRAS 18195-2804A IRAS 18245-0342 (second object) renamed as IRAS 18245-0342A (tentative detection) IRAS 18262-0735 (second object) renamed as IRAS 18262-0735A IRAS 19352+2030 renamed as IRAS 19352+2030A Velocity resolution: 0.56 km/s Total number of observed sources: 558 Only the 131 detections were published.

Abstract

We present the results of a survey in the OH mainline at 1667 MHz. Because this line is generally weak in the OH/IR stars, systematic surveys of the mainline maser have not been previously performed. A total of 131 sources were detected out of which 108 were previously unknown. The 1667 MHz profile in OH/IR stars is similar in form to that of the 1612 MHz emission, and the relevant maser properties have been measured under the assumption of the habitual radially expanding envelope model for circumstellar envelopes. We show that the mainline maser is still present in circumstellar envelopes with cool (60/25) colors its detection is, in fact, higher for such colors. Summary detection rates are given.

Comments:
Spectral type was set to:
""""S"""", where only one peak was found.
""""D"""", where two peaks were found.

IRAS 08005+2356 renamed as
IRAS 08005-2356
IRAS 17392-2722 attributed to
IRAS 17393-2727
IRAS 17456-2037 renamed as
IRAS 17456-2037A (tentative detection)
IRAS 18033-2111 (second object) renamed as
IRAS 18033-2111A
IRAS 18044-1947 (second object) renamed as
IRAS 18044-1947A
IRAS 18125-1631 (tentative detection)
IRAS 18195-2804 renamed as
IRAS 18195-2804A
IRAS 18245-0342 (second object) renamed as
IRAS 18245-0342A (tentative detection)
IRAS 18262-0735 (second object) renamed as
IRAS 18262-0735A
IRAS 19352+2030 renamed as
IRAS 19352+2030A

Velocity resolution: 0.56 km/s
Total number of observed sources: 558
Only the 131 detections were published.

Input tables: Tables 1 and 2
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Detection table from David et al. (1993)

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Non-detection table from David et al. (1993)