J/MNRAS/513/3818ivo://CDS.VizieR/J/MNRAS/513/3818doi:10.26093/cds/vizier.75133818CDSTudor V.Miller-Jones J.C.A.Strader J.Bahramian A.Shishkovsky L.,Plotkin R.M.Chomiuk L.Heinke C.O.Maccarone T.J.Sivakoff G.R.,Tremou E.Anderson G.E.Russell T.D.Tzioumis A.K.2025-03-07T20:14:39Z2025-02-26T16:16:46ZCDS support team

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

cds-question@unistra.frglobular-star-clustersradio-continuum-emissionradio-sourcesphotometryastrometrystellar-distanceRadio continuum observations offer a new window on compact objects in globular clusters compared to typical X-ray or optical studies. As part of the MAVERIC survey, we have used the Australia Telescope Compact Array to carry out a deep (median central noise level ~= 4 mJy beam^-1^) radio continuum survey of 26 southern globular clusters at central frequencies of 5.5 and 9.0 GHz. This paper presents a catalogue of 1285 radio continuum sources in the fields of these 26 clusters. Considering the surface density of background sources, we find significant evidence for a population of radio sources in seven of the 26 clusters, and also identify at least 11 previously known compact objects (six pulsars and five X-ray binaries). While the overall density of radio continuum sources with 7.25-GHz flux densities ~> 20 mJy in typical globular clusters is relatively low, the survey has already led to the discovery of several exciting compact binaries, including a candidate ultracompact black hole X-ray binary in 47 Tuc. Many of the unclassified radio sources near the centres of the clusters are likely to be true cluster sources, and multiwavelength follow-up will be necessary to classify these objects and better understand the demographics of accreting compact binaries in globular clusters.2022MNRAS.513.3818Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/513/3818CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/903/73 : MAVERIC survey: deep VLA imaging of 25 GCsJ/ApJ/766/136 : Stellar encounter rates in Galactic GCs (Bahramian+, 2013)VII/202 : Globular Clusters in the Milky Way (Harris, 1997)J/MNRAS/478/1520 : Milky Way globular clusters data (Baumgardt+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/513/3818https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/513/3818http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/513/3818https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/513/3818https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/513/3818http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/513/3818GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/513/3818/cluster (Globular clusters in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/513/3818/cluster?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/513/3818/cluster?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/513/3818/cluster?GETtext/xml+votable180.050000true6.0223292-72.08144440.005555555555555556Cone search capability for table J/MNRAS/513/3818/table4 (Radio continuum sources across our 26 globular cluster fields)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/513/3818/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/513/3818/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/513/3818/table4?GETtext/xml+votable180.050000true6.0180285-72.08272140.0055555555555555566/28705 28751 28762 28778 28808 28815 28817 28837 28867 28870 28882 28899 28905 29184 33321 37294 37636 38465 41304 41507 41513 41522 41852 42076 42278 42314 42336 42761 43227 47125 47168 47777 47866 480353.644338263669406e-24 5.963462613277209e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/513/3818?format=asciiRadiodefaultJ/MNRAS/513/3818/clusterGlobular clusters in our samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster name (Cluster)meta.id.parentcharNbrNumber of ATCA radio sources in the clustermeta.numberintSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/513/3818/table4Radio continuum sources across our 26 globular cluster fieldsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster name (Cluster)meta.id.parentcharIDRealtive source ATCAXX name (ID)meta.id;meta.maincharRAJ2000Right Ascension (J2000) (RA)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (DEC)degpos.eq.dec;meta.maine_RAJ2000Positional uncertainty of RAdeg (DeltaRA) (1)arcsecstat.error;pos.eq.rafloate_DEJ2000Positional uncertainty of DEdeg (DeltaDEC) (1)arcsecstat.error;pos.eq.decfloatl_S5.5Upper limit flag for S5.5meta.code.errorcharS5.5Flux density at 5.5 GHz (S5.5)uJyphot.flux.density;em.radio.3-6GHzfloate_S5.5? Uncertainty 1{sigma} in S5.5 (DeltaS5.5)uJystat.errorfloatnullablel_S7.25Limit flag for S7.25meta.code.errorcharS7.25? Flux density at 7.25 GHz (S7.25)uJyphot.flux.density;em.radio.6-12GHzdoublenullablee_S7.25? Uncertainty 1{sigma} in S7.25 (DeltaS7.25)uJystat.errorfloatnullablel_S9Limit flag for S9meta.code.errorcharS9? Flux density at 9.0 GHz (S9)uJyphot.flux.density;em.radio.6-12GHzdoublenullablee_S9? Uncertainty 1{sigma} in S9 (DeltaS9)uJystat.errorfloatnullablel_alphaLimit flag for alphameta.code.error;pos.eq.racharalpha? Spectral index of source (2)spect.indexfloatnullablee_alpha? Uncertainty 1{sigma} in alpha (Deltaalpha)stat.error;pos.eq.rafloatnullableRcDistance from center in units of cluster core radius (R_c_)pos.distancefloatRhDistance from center in units of cluster half-light radius (R_h_)pos.distancefloat