J/ApJS/106/463 J/ApJS/106/463 SiO maser sources B W Jiang S Deguchi I Yamamura Y Nakada S H Cho T Yamagata Astrophys. J. Suppl. Ser. 106 463 1996 1996ApJS..106..463J Infrared sources Masers Photometry, infrared Galaxy: kinematics and dynamics ISM: molecules masers stars: spectral classification stars: variables: other (long-period variables) The observations in the 28SiO J=1-0 v=1, J=1-0 v=2 lines and the 29SiO J=1-0, v=0 lines were simultaneously made toward 181 color-selected IRAS sources in the outer disk of the Galaxy (at longitudes between 90 deg and 250 deg). The 28SiO lines were detected in 63 sources (56 new) and the 29SiO line in 11 sources (9 new). Most of the detections are optically variable stars, mainly Mira-type variables and a few semiregular variables. The detection rate (35%) is much lower than that of the bulge survey performed by the same observational system - the 45m telescope at Nobeyama Radio Observatory. The lower detection rate of SiO maser emission is partly attributed to the increase of contaminations by stars with C-rich circumstellar envelopes and young stellar objects in the outer disk sample. The kinematical implications of the observational results are also discussed. The luminosity distances to the SiO maser sources are estimated from their IRAS fluxes at 12um and colors. By combining the SiO radial velocity and the luminosity distance, the rotation curve of the outer Galactic disk is found to be slightly falling within the Galactocentric distance between 8.5 and 12kpc. The sources located within 20deg from the Galactic anticenter direction are used to check for a peculiar motion of the local standard of rest.

IRAS IRAS PSC (Cat. <II/125>) name --- TA1 Peak antenna temperature number=1 Gaussian components for SiO v = 1 J = 1-0 line. K n_TA1 : when no data for TA1 --- rms1 1 sigma noise level of line observation number=1 Gaussian components for SiO v = 1 J = 1-0 line. K Vlsr1 Velocity in Local Standard of Rest number=1 Gaussian components for SiO v = 1 J = 1-0 line. km/s n_Vlsr1 : when no data for Vlsr1 --- FWHM1 Full width at half maximum number=1 Gaussian components for SiO v = 1 J = 1-0 line. km/s n_FWHM1 : when no data for FWHM1 --- TA2 Peak antenna temperature number=2 Gaussian components for SiO v = 2 J = 1-0 line. K n_TA2 : when no data for TA2 --- rms2 1 sigma noise level of line observation number=2 Gaussian components for SiO v = 2 J = 1-0 line. K Vlsr2 Velocity in Local Standard of Rest number=2 Gaussian components for SiO v = 2 J = 1-0 line. km/s n_Vlsr2 : when no data for Vlsr2 --- FWHM2 Full width at half maximum number=2 Gaussian components for SiO v = 2 J = 1-0 line. km/s n_FWHM2 : when no data for FWHM2 --- IRAS IRAS PSC (Cat. <II/125>) name number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- GLon Galactic longitude number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> deg GLat Galactic latitude number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> deg F12 IRAS flux at 12 microns number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> Jy C12 IRAS color C12 (log F25/F12) number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- C23 IRAS color C23 (log F60/F25) number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- Var IRAS variability index number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- LRS IRAS Low Resolution Spectrum class number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- Id ID status; 1=identified; 0=unidentified number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- rms1 1-sigma level for SiO maser v=1 line obs. number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> K rms2 1-sigma level for SiO maser v=2 line obs. number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> K Date Date of SiO maser observation, yymmddhh number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- Other Result of obs. in other molecular lines Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> number= Results of observations in other molecular lines, '+' means positive result and '-' means negative, number in parentheses are reference numbers, as follows: 1. te Lintel Hekkert et al., 1991A&AS...90..327T 2. Le Sequeren et al., 1992A&A...254..133L 3. Eder et al., 1988ApJS...66..183E 4. Lewis et al., 1990ApJ...362..634L 5. Chengalur et al., 1993ApJS...89..189C 6. Lewis, 1994ApJS...93..549L 7. Loup et al., 1993A&AS...99..291L 8. Wouterlout et al., 1989A&AS...80..149W, Cat. <J/A+AS/80/149> 9. Sivagnanam et al., 1990A&A...233..112S 10. Galt et al., 1989AJ.....98.2182G 11. Nyman et al., 1993A&A...280..551N 12. Benson et al., 1990ApJS...74..911B, Cat. <V/68> 13. Kastner et al., 1993A&A...275..163K, Cat. <J/A+A/275/163> --- tables.texLaTeX version of the tables Patricia Bauer CDS 1997Feb03AAS CD-ROM series, Volume 7, 1996 Lee Brotzman [ADS] 09-Nov-96 J_ApJS_106_463.xml