J/A+A/631/A118ivo://CDS.VizieR/J/A+A/631/A118doi:10.26093/cds/vizier.36310118CDSGoettgens F.Husser T.-O.Kamann S.Dreizler S.Giesers B.,Kollatschny W.Weilbacher P.M.Roth M.M.Wendt M.2019-11-19T12:05:16Z2019-11-05T08:05:57ZCDS support team

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

cds-question@unistra.frglobular-star-clustersemission-line-starsspectrophotometryGlobular clusters produce many exotic stars due to a much higher frequency of dynamical interactions in their dense stellar environments. Some of these objects were observed together with several hundred thousand other stars in our MUSE survey of 26 Galactic globular clusters. Assuming that at least a few exotic stars have exotic spectra (i.e. spectra that contain emission lines), we can use this large spectroscopic data set of over a million stellar spectra as a blind survey to detect stellar exotica in globular clusters. To detect emission lines in each spectrum, we modelled the expected shape of an emission line as a Gaussian curve. This template was used for matched filtering on the differences between each observed 1D spectrum and its fitted spectral model. The spectra with the most significant detections of H{alpha} emission are checked visually and cross-matched with published catalogues. We find 156 stars with H{alpha} emission, including several known cataclysmic variables (CV) and two new CVs, pulsating variable stars, eclipsing binary stars, the optical counterpart of a known black hole, several probable sub-subgiants and red stragglers, and 21 background emission-line galaxies. We find possible optical counterparts to 39 X-ray sources, as we detected H_alpha emission in several spectra of stars that are close to known positions of Chandra X-ray sources. This spectral catalogue can be used to supplement existing or future X-ray or radio observations with spectra of potential optical counterparts to classify the sources.2019A&A...631A.118Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/631/A118CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/631/A118https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/631/A118http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/631/A118https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/631/A118https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/631/A118http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/631/A118GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/631/A118/tablea2 (ELO properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/631/A118/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/631/A118/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/631/A118/tablea2?GETtext/xml+votable180.050000true6.0090543-72.0950190.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/631/A1186/12405 19091 21017 28705 28778 28973 29195 31115 31417 33321 33330 34242 37294 38465 42314 42841 42955 42990 43125 43227 47125 47777 47868 48434https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/631/A118?format=asciidefaultJ/A+A/631/A118/tablea2ELO propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainACSACS Survey IDmeta.id;meta.mainintspListList of spectrameta.ref.urlcharCenDistDistance to centerarcsecpos.angDistancefloatVmagV magnitudemagphot.mag;em.opt.VfloatMemb[yes/no/unc ] Cluster membership indicatormeta.code.member;instr.setupcharRV[yes/no/unc ] Variable RV indicatorkm/smeta.codecharDX? Distance to next Xray source (if close)arcsecpos.angDistancefloatnullableCommentCommentmeta.notecharIdentIdentificationmeta.idcharRefReference for identification (1)meta.ref;pos.framecharJ/A+A/631/A118/listList of fits spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNxNumber of pixels along X-axismeta.numberintObs.dateObservation datestime.epoch;obsnullablebAWAVLower value of wavelength interval0.1nmem.wldoubleBAWAVUpper value of wavelength interval0.1nmem.wldoubledAWAV? Wavelength resolution0.1nmspect.resolutiondoublenullablesizeSize of FITS fileKibytephys.size;meta.fitsintspShow the spectrummeta.ref.urlcharFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharClusterCluster namemeta.id.parentcharACSACS Survey IDmeta.id;meta.mainintSpecidRunning ID for spectrum, 999 = combined spectrummeta.idintAssocDataAssociated Data web pagemeta.ref.urlchar