J/A+AS/124/85 J/A+AS/124/85 OH emission from IRAS sources V I Slysh A M Dzura I E Val'tts E Gerard Astron. Astrophys. Suppl. Ser. 124 85 1997 1997A&AS..124...85S II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986) Infrared sources Masers Radio lines ISM: clouds ISM: molecules masers radio lines: ISM surveys Results of a continued search for OH main line emission from IRAS sources are reported. Towards a sample of 182 sources which consists of IRAS sources selected by the colour criterion for ultracompact HII region, and several IRAS cores, H_2_O masers and bipolar outflows, we detected 19 new OH masers of Class I and 5 OH/IR candidates. The correlation between IR and OH maser flux is confirmed. Also 51 thermal and 4 absorption sources were detected. The low radial velocities and derived OH column densities suggest that the thermal OH emission comes from nearby dark clouds. There is evidence that IRAS sources towards which thermal emission was detected are connected with these dark clouds.

IRAS

Name IRAS or other names --- n_Name Note number=1 a: 1665 V profile centered at -21km/s and 1665 H profile at -27km/s were not observed with high velocity resolution. b: Detection reported in the Paper I. --- GLON Galactic longitude deg GLAT Galactic latitude deg V(1667MHz) Velocity (Gaussian fit for 1667MHz line) km/s e_V(1667MHz) rms uncertainty on V(1667MHz) km/s FWHM(1667MHz) FWHM (Gaussian fit for 1667MHz line) km/s e_FWHM(1667MHz) rms uncertainty on FWHM(1667MHz) km/s l_S1667MHz Limit flag on S1667MHz --- S1667MHz Flux (Gaussian fit for 1667MHz line) Jy e_S1667MHz rms uncertainty on S1667MHz Jy Pol Polarization type number=2 R: right circular polarization L: left circular polarization H: horizontal linear polarization V: vertical linear polarization T: line supposed to be thermal --- V(1665MHz) Velocity (Gaussian fit for 1665MHz line) km/s e_V(1665MHz) rms uncertainty on V(1665MHz) km/s FWHM(1665MHz) FWHM (Gaussian fit for 1665MHz line) km/s e_FWHM(1665MHz) rms uncertainty on FWHM(1665MHz) km/s l_S1665MHz Limit flag on S1665MHz --- S1665MHz Flux (Gaussian fit for 1665MHz line) Jy e_S1665MHz rms uncertainty on S1665MHz Jy Pol2 Polarization type number=2 R: right circular polarization L: left circular polarization H: horizontal linear polarization V: vertical linear polarization T: line supposed to be thermal --- Note c: 1665Mhz parameters are 1612MHz OH line ones (For 17269-2235 only) --- OtherName Other name --- Name IRAS or other names --- Lynds Associations of an IRAS source with nebulae of Lynds --- GLON Galactic longitude deg GLAT Galactic latitude deg l_S1667MHz Limit flag on S1667MHz --- S1667MHz Flux at 1667MHz (result of Gaussian fits) Jy l_S1665MHz Limit flag on S1667MHz --- S1665MHz Flux at 1665MHz (result of Gaussian fits) Jy RV Radial velocity (result of Gaussian fits) km/s FWHM FWHM (result of Gaussian fits) km/s N(OH) Estimates of OH column density. 10+14cm-2 V(CO) CO radial velocities km/s r_V(CO) Reference for radial velocity number=1 1: Myers et al. (1983ApJ...264..517) 2: Terebey et al. (1989ApJ...340..472T) 3: Casoli et al. (1986A&A...169..281C) 4: Heyer et al. (1987ApJ...321..370H) 5: Wouterloot and Brand (1989, Cat. <J/A+AS/80/149>) 6: de Geus et al. (1990A&A...231..137D) 7: Benson et al. (1989) --- IRAScloud Name of a associated IRAS cloud or core (Wood et al. 1994, Cat. <J/ApJS/95/457>) --- tables.texLaTeX version of the tables Patricia Bauer CDS 1996Nov12Eric Gerard <Eric.Gerard@obspm.fr> J_A+AS_124_85.xml