II. Observations of the galactic Disk region
Sterrewacht Leiden, P.O. Box 9513, 2300 RA Leiden, The Netherlands
2 Anglo Australian Observatory, P.O. Box 296, Epping 2121 NSW, Australia
3 Australia Telescope National Facility, P.O. Box 76, Epping 2121 NSW, Australia
4 Onsala Space Observatory, S-439 92 Onsala, Sweden
Send offprint request to: M.N. Sevenster
Accepted: 10 December 1996
We present observations of the region between and in the OH 1612.231 MHz line, taken in 1994 January with the Australia Telescope Compact Array (ATCA). These observations are part of a larger survey, covering and , with the ATCA and the Very Large Array. In a previous article we have discussed the observational strategy in detail. In this paper we present only the objects found in this part of the survey. The region was systematically searched for OH-maser emission and was covered completely with 910 pointing centres separated by 30. We found 202 OH–masing objects, 112 of which are new detections. Out of the 202 objects, 166 have a standard double–peaked spectral profile, 32 a single–peaked profile and 4 objects have non–standard or irregular profiles. In this article we analyse the data statistically and give classifications and identifications with known sources where possible. The astrophysical, kinematical, morphological and dynamical properties of subsets of the data will be addressed in future articles.
Key words: surveys / stars: AGB and post-AGB / Galaxy: stellar content / radio lines: stars
The Australia Telescope Compact Array is operated by the Australia Telescope National Facility, CSIRO, as a national facility.
The electronic version of this paper, including Table 1 and the spectra of Fig. 6, can be obtained from http://www.ed-phys.fr. Table 1 is available via anonymous ftp (18.104.22.168) or through the World Wide Web (http://cdsweb.u-strasbg.fr/Abstract.html).
© European Southern Observatory (ESO), 1997