J/ApJS/239/15ivo://CDS.VizieR/J/ApJS/239/15doi:10.26093/cds/vizier.22390015CDSQiao H.-H.Walsh A.J.Breen S.L.Gomez J.F.Dawson J.R.Imai H.,Ellingsen S.P.Green J.A.Shen Z.-Q.2023-03-09T15:13:07Z2019-02-14T08:51:22ZCDS support team

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

cds-question@unistra.frgalactic-centerastrophysical-masersradio-astronomyWe present high spatial resolution observations of ground-state OH masers achieved using the Australia Telescope Compact Array (ATCA). These observations were conducted toward 171 pointing centers where OH maser candidates were identified previously in the Southern Parkes Large-Area Survey in Hydroxyl (SPLASH) toward the Galactic center region between Galactic longitudes of 355* and 5* and Galactic latitudes of -2{deg} and +2{deg}. We detect maser emission toward 162 target fields and suggest that six out of nine nondetections are due to intrinsic variability. Due to the superior spatial resolution of the follow-up ATCA observations, we have identified 356 OH maser sites in the 162 target fields with maser detections. Almost half (161 of 356) of these maser sites have been detected for the first time in these observations. After comparing the positions of these 356 maser sites to the literature, we find that 269 (76%) sites are associated with evolved stars (two of which are PNe), 31 (9%) are associated with star formation, and four are associated with supernova remnants; we were unable to determine the origin of the remaining 52 (15%) sites. Unlike the pilot region, the infrared colors of evolved star sites with symmetric maser profiles in the 1612MHz transition do not show obvious differences compared with those of evolved star sites with asymmetric maser profiles.2018ApJS..239...15Qhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/239/15CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/96 : 6-GHz methanol multibeam maser catalogue (Caswell+, 2010-12)J/A+AS/76/205 : Variables and Nebulae in Sgr B (Terzan+ 1988)J/A+AS/90/327 : 1612MHz OH survey of IRAS sources (te Lintel Hekkert+ 1991)J/A+AS/92/43 : Radio Obs. of OH/IR stars close to the GC (Lindqvist+ 1992)J/A+A/277/453 : OH maser survey of cool IRAS sources (David+ 1993)J/A+AS/111/237 : OH detections from circumstellar shells (Lewis+, 1995)J/A+AS/122/79 : Galactic Bulge Region OH 1612MHz survey. I. (Sevenster+ 1997)J/A+AS/124/509 : ATCA/VLA OH 1612 MHz survey. II. (Sevenster+ 1997)J/A+AS/128/35 : New Sample of OH/IR stars (Sjouwerman+ 1998)J/A+A/362/215 : IJKs phot. of Galactic bulge variables (Schultheis+, 2000)J/MNRAS/321/77 : Large-amplitude variables near the GC (Glass+, 2001)J/A+A/366/481 : ATCA/VLA OH 1612 MHz survey. III. (Sevenster+, 2001)J/A+A/373/536 : New galactic bulge PNe (van de Steene+, 2001)J/A+A/393/115 : 86GHz SiO maser survey of late-type stars (Messineo+, 2002)J/A+A/391/967 : H2O and SiO masers in the Galactic center (Sjouwerman+, 2002)J/A+A/403/943 : Mass-loss rates of galactic AGB stars (Le Bertre+, 2003)J/A+A/405/531 : IR sp. of ISOGAL sources in Galactic Bulge (Schultheis+, 2003)J/ApJS/155/595 : OH maser IRAS and MSX observations (Deacon+, 2004)J/PASJ/56/765 : SiO maser survey of IRAS sources (Deguchi+, 2004)J/A+A/419/563 : Planetary nebulae near the Galactic Center (Jacoby+, 2004)J/A+A/413/1037 : J-K DENIS phot. of bright southern stars (Kimeswenger+ 2004)J/A+A/418/103 : 86GHz SiO maser survey in the Inner Galaxy (Messineo+, 2004)J/AJ/128/1646 : The Galactic Center region at 330MHz (Nord+, 2004)J/MNRAS/364/117 : OGLE2 Mira variables in the Galactic bulge (Matsunaga+, 2005)J/A+A/435/575 : SiO maser survey of late-type stars. III (Messineo+, 2005)J/PASJ/58/529 : SiO Maser Survey in Galactic Bulge (Fujii+, 2006)J/A+A/458/173 : Optical spectroscopy of 253 IRAS sources (Suarez+, 2006)J/A+A/465/865 : OH masers towards high mass protostellar object (Edris+, 2007)J/AJ/136/2391 : GLIMPSE Extended Green Objects catalog (Cyganowski+, 2008)J/AJ/136/2413 : Galactic midplane Spitzer red sources (Robitaille+, 2008)J/A+A/496/813 : Binary PNe towards the Galactic bulge (Miszalski+, 2009)J/ApJ/702/178 : YSOs in the central 400pc of the Galaxy (Yusef-Zadeh+, 2009)J/AJ/145/22 : Simultaneous SiO and H2O maser observations (Kim+, 2013)J/ApJS/208/11 : The Red MSX Source Survey: massive protostars (Lumsden+, 2013)J/AcA/63/21 : VI light curves of Galactic LPVs (Soszynski+, 2013)J/MNRAS/442/2240 : Accurate water maser positions from HOPS (Walsh+, 2014)J/A+A/578/A119 : Water maser emission toward post-AGB and PN (Gomez+, 2015)J/ApJS/227/26 : ATCA obs. of ground-state OH masers (Qiao+, 2016)J/A+A/606/A126 : Orion Source I 3mm SiO maser emission (Issaoun+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/239/15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/239/15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/239/15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/239/15https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/239/15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/239/15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/239/15/table2 (Details of the 356 OH maser sites, derived from the ATCA observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/239/15/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/239/15/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/239/15/table2?GETtext/xml+votable180.050000true263.16290833-33.070902780.0055555555555555565/7203-7204 7206-7207 7212-7213 7218 7224 6/28801 28803-28804 28806-28809 28811 28822-28823 28832-28833 28836-28837 28839 28866-28867 28870 28876 28878-28879 28900-28902 28904-28905 28908https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/239/15?format=asciiRadiodefaultJ/ApJS/239/15/table2Details of the 356 OH maser sites, derived from the ATCA observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/356] Figure number; column added by CDSmeta.bib.figintNameIdentifier (GLLL.lll+B.bbb-ffffA) (1)meta.id;meta.maincharRAJ2000[17/18] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[23/33] Degree of Declination (J2000)pos.eq.dec;meta.mainPFlux[0.2/286] Peak flux densityJyphot.flux.density;em.radio.1500-3000MHzfloatIFlux[0.07/788] Integrated flux densityJy.km/sphot.flux.density;em.radio.1500-3000MHzfloatPkVel[-356/327] Peak velocitykm/sphys.veloc;stat.maxfloatminVel[-358/326] Minimum velocitykm/sphys.veloc;stat.minfloatmaxVel[-356/328] Maximum velocitykm/sphys.veloc;stat.maxfloatebmin[0.03/3] Relative uncertainty in minor axisarcsecstat.error;phys.angSizefloateamaj[0.07/11] Relative uncertainty in major axisarcsecstat.error;phys.angSizefloatePA[-26/19] Uncertainty in position angledegstat.error;pos.posAngfloatCommComments (2)meta.notecharRefReference (3)meta.ref;pos.framecharS97Display data from Sevenster+, 1997, J/A+AS/122/79, within 3"meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar