J/MNRAS/406/307ivo://CDS.VizieR/J/MNRAS/406/307doi:10.26093/cds/vizier.74060307CDSKoljonen K.I.I.Hannikainen D.C.McCollough M.L.Pooley G.G.,Trushkin S.A.2024-07-12T20:14:19Z2011-01-24T09:10:12ZCDS support team

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

cds-question@unistra.frx-ray-binary-starsradio-sourcesCygnus X-3 is one of the brightest X-ray and radio sources in the Galaxy and is well known for its erratic behaviour in X-rays as well as in the radio, occasionally producing major radio flares associated with relativistic ejections. However, even after many years of observations in various wavelength bands Cyg X-3 still eludes clear physical understanding. Studying different emission bands simultaneously in microquasars has proved to be a fruitful approach towards understanding these systems, especially by shedding light on the accretion disc/jet connection. We continue this legacy by constructing a hardness-intensity diagram (HID) from archival Rossi X-ray Timing Explorer data and linking simultaneous radio observations to it. We find that surprisingly Cyg X-3 sketches a similar shape in the HID to that seen in other transient black hole X-ray binaries during outburst but with distinct differences.2010MNRAS.406..307Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/406/307CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/308/473 : Cygnus X-3 IR spectra (Fender+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/406/307https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/406/307http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/406/307https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/406/307https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/406/307http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/406/307GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap9.939104355462015e-24 9.939104355462015e-24RadiodefaultJ/MNRAS/406/307/tablea1The hardness-intensity diagram (HID) of Cyg X-3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number of observationmeta.recordintObsIDObsIDmeta.notecharDateObservation datetime.epoch;obsnullableMJD1MJD intervaldtime.epochdoubleMJD2MJD intervaldtime.epochdoubletPCARXTE/PCA exposure timekstime.duration;obs.exposurefloattHEXTERXTE/HEXTE exposure timekstime.duration;obs.exposurefloatStateX-ray/Radio state (1)meta.codecharSrad? Mean radio flux (during or near the RXTE observations) at8.3, 11.2 or 15GHzJyphot.flux.density;em.radiofloatnullablen_SradFrequency used (2)meta.notechar