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1. Introduction

In a previous paper (Slysh et al. 1994, Paper I) we reported results of the extensive search for OH main line emission from a sample of IRAS point sources selected by color criteria from Wood & Churchwell (1989). The sample was restricted to a region outside the galactic plane with galactic latitude tex2html_wrap_inline1437. This search was an extension of the OH masers search towards IRAS sources brighter than 1000 Jy at 60 and 100 tex2html_wrap_inline1439m by Cohen et al. (1988). Several new relatively weak masers were detected as well as thermal OH sources associated with dark clouds. The general conclusion from Paper I was that the detection rate of OH masers from IRAS sources was correlated with their far-infrared flux corroborating a similar conclusion by Moore et al. (1988). The second objective of the search was to detect OH masers less affected by interstellar scattering. This would allow to study maser structures with the high angular resolution of VLBI observations. From pulsar data, it is known that the amount of scattering strongly depends on galactic latitude. For this reason, we selected IRAS sources with galactic latitude tex2html_wrap_inline1441. From pulsar observations, it is also known that the strength of the scattering depends on galactic longitude since the scattering medium is concentrated to the galactic center region. Thus, in the second survey reported in this paper, we also included low latitude IRAS sources in the anticenter region. Also, sources selected for the first survey which had not been observed due to the lack of telescope time, were observed during this second survey. Finally, several IRAS cores from the list of Wood et al. (1994), tex2html_wrap_inline1443 masers and bipolar outflows, were added to the observing list.

  table209
Table 1: Masers. Column 1 contains IRAS names, or other names. Column 2 - galactic coordinates. Columns 3, 4 and 5 - Gaussian fits for the 1667 MHz line. Columns 6, 7 and 8 - Gaussian fits for the 1665 MHz line. Right and left circular polarizations are designated by R and L, while H and V stand for horizontal and vertical linear polarizations. Capital T is used when a line was supposed to be thermal

   Table 2: Thermal sources. Column 1 contains IRAS or other names. Column 2 - associations of an IRAS source with nebulae of Lynds. Column 3 - galactic coordinates. Columns 4, 5, 6 and 7 - results of Gaussian fits. Column 8 contains estimates of OH column density. Column 10 and 11 - CO radial velocities with the corresponding references. Column 11 - name of associated IRAS cloud or core (Wood et al. 1994)


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