J/ApJ/826/136ivo://CDS.VizieR/J/ApJ/826/136doi:10.26093/cds/vizier.18260136CDSAmiri N.Darling J.2017-01-23T22:00:00Z2016-10-27T08:19:43ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frastrophysical-masersradio-astronomygalaxiesinfrared-sourcesWe present a comparative multiwavelength analysis of water-maser-emitting regions and non-maser-emitting luminous 24{mu}m star-forming regions in the Andromeda Galaxy (M31) to identify the sites most likely to produce luminous water masers useful for astrometry and proper motion studies. Included in the analysis are Spitzer 24{mu}m photometry, Herschel 70 and 160{mu}m photometry, H{alpha} emission, dust temperature, and star-formation rate. We find significant differences between the maser-emitting and non-maser-emitting regions: water-maser-emitting regions tend to be more infrared-luminous and show higher star-formation rates. The five water masers in M31 are consistent with being analogs of water masers in Galactic star-forming regions and represent the high-luminosity tail of a larger (and as yet undetected) population. Most regions likely to produce water masers bright enough for proper motion measurements using current facilities have already been surveyed, but we suggest three ways to detect additional water masers in M31: (1) reobserve the most luminous mid- or far-infrared sources with higher sensitivity than was used in the Green Bank Telescope survey; (2) observe early-stage star-forming regions selected by millimeter continuum that have not already been selected by their 24{mu}m emission, and (3) reobserve the most luminous mid- or far-infrared sources and rely on maser variability for new detections.2016ApJ...826..136Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/826/136CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/826/24 : Water masers in M31. I. Recombination lines (Darling+, 2016)J/A+A/550/A21 : Massive star-forming regions radio lines (Sanchez-Monge+, 2013)J/ApJ/764/61 : Water maser & NH_3_ survey of GLIMPSE EGOs (Cyganowski+, 2013)J/MNRAS/418/1689 : Red MSX water maser and ammonia emissions (Urquhart+, 2011)J/AJ/142/139 : A new catalog of HII regions in M31 (Azimlu+, 2011)J/MNRAS/416/1764 : H_2_O Southern Galactic Plane Survey (HOPS) (Walsh+, 2011)J/AJ/136/2391 : GLIMPSE Extended Green Objects catalog (Cyganowski+, 2008)J/ApJ/687/230 : Survey of M31 with Spitzer (Mould+, 2008)J/ApJ/678/96 : Extragalactic H2O masers (Braatz+, 2008)J/A+A/481/345 : SED evolution in massive YSOs (Molinari+, 2008)J/MNRAS/369/120 : Kinematic survey of PNe in M31 (Merrett+, 2006)J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)J/ApJ/633/871 : Positions & photometry of HII knots in M51 (Calzetti+, 2005)J/ApJ/581/325 : NGC 2071 water masers (Seth+, 2002)J/MNRAS/276/57 : IRAS Galactic star-forming regions. II. (Codella+ 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/826/136https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/826/136http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/826/136https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/826/136https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/826/136http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/826/136GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/826/136/table3 (Multi-wavelength properties of the non-maser sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/826/136/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/826/136/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/826/136/table3?GETtext/xml+votable180.050000true9.7187540.3180280.005555555555555556Cone search capability for table J/ApJ/826/136/table2 (Multi-wavelength properties of the water maser hosts in M31)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/826/136/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/826/136/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/826/136/table2?GETtext/xml+votable180.050000true9.8287540.3662220.0055555555555555566/2622 2623 2666 2705 2708 2709 2752https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/826/136?format=asciiRadioInfrareddefaultJ/ApJ/826/136/table3Multi-wavelength properties of the non-maser samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject identifier from J2000 positionmeta.id;meta.maincharTdust[14.3/26]? Dust temperature (1)Kphys.temperaturefloatnullablelogSFR[-5.5/-3.2] Log Star Formation Ratelog(solMass.yr**-1)meta.idfloate_logSFRThe 1{sigma} uncertainty in logSFR (2)log(solMass.yr**-1)stat.error;phys.SFRfloatlogF24[-2.5/-0.3] Log 24 micron flux densitylog(Jy)phot.flux.density;em.IR.15-30umfloate_logF24The 1{sigma} uncertainty in logF24 (2)log(Jy)stat.errorfloatl_logF70Limit flag on logF70meta.code.errorcharlogF70[-1.3/0.6] Log 70 micron flux densitylog(Jy)phot.flux.density;em.IR.30-60umfloate_logF70? The 1{sigma} uncertainty in logF70 (2)log(Jy)stat.errorfloatnullablel_logF160Limit flag on log160meta.code.errorcharlogF160[-1.3/0.7] Log 160 micron flux densitylog(Jy)phot.flux.density;em.mm.1500-3000GHzfloate_logF160? The 1{sigma} uncertainty in logF160 (2)log(Jy)stat.errorfloatnullablel_logHaLimit flag on logHameta.code.errorcharlogHa[-16/-11.9] Log H{alpha} line fluxlog(mW.m**-2)phot.flux;em.line.Halpha;spect.linedoublee_logHa? The 1{sigma} uncertainty in logHa (2)log(mW.m**-2)stat.errorfloatnullablelogLTIR[5/6.9]? Log total IR luminositylog(solLum)phys.luminosity;em.IRfloatnullablee_logLTIR? The 1{sigma} uncertainty in logLTIR (2)log(solLum)stat.errorfloatnullable_RAPositions from names (right ascension part)degpos.eq.ra;meta.main_DEPositions from names (declination part)degpos.eq.dec;meta.mainJ/ApJ/826/136/table2Multi-wavelength properties of the water maser hosts in M31logF70[-1.3/0.6] Log 70 micron flux densitylog(Jy)phot.flux.density;em.IR.30-60umfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject identifier from J2000 positionmeta.id;meta.maincharTdust[14.3/26]? Dust temperature (1)Kphys.temperaturefloatnullablelogSFR[-5.5/-3.2] Log Star Formation Ratelog(solMass.yr**-1)meta.idfloate_logSFRThe 1{sigma} uncertainty in logSFR (2)log(solMass.yr**-1)stat.error;phys.SFRfloatlogF24[-2.5/-0.3] Log 24 micron flux densitylog(Jy)phot.flux.density;em.IR.15-30umfloate_logF24The 1{sigma} uncertainty in logF24 (2)log(Jy)stat.errorfloatl_logF70Limit flag on logF70meta.code.errorchare_logF70? The 1{sigma} uncertainty in logF70 (2)log(Jy)stat.errorfloatnullablel_logF160Limit flag on log160meta.code.errorcharlogF160[-1.3/0.7] Log 160 micron flux densitylog(Jy)phot.flux.density;em.mm.1500-3000GHzfloate_logF160? The 1{sigma} uncertainty in logF160 (2)log(Jy)stat.errorfloatnullablel_logHaLimit flag on logHameta.code.errorcharlogHa[-16/-11.9] Log H{alpha} line fluxlog(mW.m**-2)phot.flux;em.line.Halpha;spect.linedoublee_logHa? The 1{sigma} uncertainty in logHa (2)log(mW.m**-2)stat.errorfloatnullablelogLTIR[5/6.9]? Log total IR luminositylog(solLum)phys.luminosity;em.IRfloatnullablee_logLTIR? The 1{sigma} uncertainty in logLTIR (2)log(solLum)stat.errorfloatnullableH2O[58/447]? H_2_O flux density (only for table 2) (3)mJy.km/sphot.flux.densityintnullablee_H2O? The 1{sigma} uncertainty in H2O (2)mJy.km/sstat.errorintnullableLH2O[0.0008/0.007]? H_2_O luminosity (only for table 2) (3)solLumphys.luminositydoublenullablee_LH2O? The 1{sigma} uncertainty in LH2O (2)solLumstat.errordoublenullable_RAPositions from names (right ascension part)degpos.eq.ra;meta.main_DEPositions from names (declination part)degpos.eq.dec;meta.main