J/A+A/628/A90ivo://CDS.VizieR/J/A+A/628/A90doi:10.26093/cds/vizier.36280090CDSBeuther H.Walsh A.Wang Y.Rugel M.Soler J.Linz H.Kloessen R.S.,Anderson L.D.Glover J.SUrquhardt.S.C.O.Billington S.J.Kainulainen J.,Menten K.M.Roy N.Longmore S.N.Bigiel F.2019-12-21T09:15:53Z2019-08-12T08:07:46ZCDS support team

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

cds-question@unistra.frgalaxy-planesmilky-way-galaxyradio-sourcesastrophysical-masersradio-astronomyOH masers trace diverse physical processes, from the expanding envelopes around evolved stars to star-forming regions or supernovae remnants. Providing a survey of the ground-state OH maser transitions in the northern hemisphere inner Milky Way facilitates the study of a broad range of scientific topics. We want to identify the ground-state OH masers at 18 cm wavelength in the area covered by "The HI/OH/Recombination line survey of the Milky Way (THOR)". We will present a catalogue of all OH maser features and their possible associated environments. The THOR survey covers longitude and latitude ranges of 14.3{deg}<l<66.8{deg} and b<+/-1.25{deg}. All OH ground state lines ^2^{PI}_3/2_(J=3/2) at 1612 (F=1-2), 1665 (F=1-1), 1667 (F=2-2) and 1720MHz (F=2-1) have been observed, employing the Very Large Array (VLA) in its C configuration. The spatial resolution of the data varies between 12.5" and 19", the spectral resolution is 1.5km/s, and the rms sensitivity of the data is 10mJy/beam per channel. We identify 1585 individual maser spots (corresponding to single spectral features) distributed over 807 maser sites (regions of size ~10^3^-10^4^AU). Based on different criteria from spectral profiles to literature comparison, we try to associate the maser sites with astrophysical source types. Approximately 51% of the sites exhibit the double-horned 1612MHz spectra typically emitted from the expanding shells of evolved stars. The separations of the two main velocity features of the expanding shells typically vary between 22 and 38km/s. In addition to this, at least 20% of the maser sites are associated with star-forming regions. While the largest fraction of 1720MHz maser spots (21 out of 53) is associated with supernova remnants, a significant fraction of the 1720MHz maser spots (17) are also associated with star-forming regions. We present comparisons to the thermal ^13^CO(1-0) emission as well as to other surveys of class II CH_3_OH and H_2_O maser emission. The catalogue attempts to present associations to astrophysical sources where available, and the full catalogue is available in electronic form. This OH maser catalogue presents a unique resource of stellar and interstellar masers in the northern hemisphere. It provides the basis for a diverse range of follow-up studies from envelopes around evolved stars to star-forming regions and Supernova remnants.2019A&A...628A..90Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/628/A90CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/619/A124 : THOR survey in northern Galactic plane (Wang+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/628/A90https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/628/A90http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/628/A90https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/628/A90https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/628/A90http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/628/A90GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/628/A90/table1 (THOR maser spot catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/628/A90/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/628/A90/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/628/A90/table1?GETtext/xml+votable180.050000true274.18221667-16.4509250.0055555555555555565/3242 7279 7377 7382-7383 7554 7561 7564 7567 7578-7579 7604-7605 7651 7654 7678-7679 6/12974 12987 14336-14337 14343 14353 14355-14357 14359 14403 14406 14408-14409 14413 14418-14419 29113 29115 29162-29163 29166 29457 29460-29462 29504-29505 29507 29513 29516-29517 29520 29522-29523 29526-29527 29556-29557 30222-30223 30240-30241 30260 30262-30265 30306 30330-30331 30401 30404-30405 30407 30428-30429 30594-30595 30598 30600 30610 30622-30623 30641 30644-30645 30647 30666 30688 30690-30691 30693-30695 30697 30701 30706-30707https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/628/A90?format=asciiRadiodefaultJ/A+A/628/A90/table1THOR maser spot catalogueRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainvmaxMaximum velocity of maser spotkm/sspect.dopplerVelocfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName, GLL.LLL+B.bbb-NNNA, including the maser frequency and spot label A.Bmeta.id;em.freqcharDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpeakPeak flux densityJyphot.flux.density;em.radiofloatrmsrmsmJystat.stdev;instr.det.noiseintSintIntegrated flux densityJy.km/sphot.flux.density;em.radiofloatvpeakPeak velocitykm/sspect.dopplerVelocfloatvminMinimum velocity of maser spotkm/sspect.dopplerVelocfloatDeltaxPositional uncertainty along Xarcsecstat.error;posfloatDeltayPositional uncertainty along Yarcsecstat.error;pos;instr.detfloatAssocAssociations (1)meta.notechar