J/A+A/584/A122ivo://CDS.VizieR/J/A+A/584/A122doi:10.26093/cds/vizier.35840122CDSLuque-Escamilla P.L.Marti J.Martinez-Aroza J.2022-05-02T14:24:58Z2015-12-03T08:53:17ZCDS support team

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

cds-question@unistra.frx-ray-binary-starsThe source 1E 1740.7-2942 is believed to be one of the two prototypical microquasars towards the Galactic center region whose X-ray states strongly resemble those of Cygnus X-1. Yet, the bipolar radio jets of 1E 1740.7-2942 are very reminiscent of a radio galaxy. The true nature of the object has thus remained an open question for nearly a quarter of a century. Our main goal here is to confirm the Galactic membership of 1E 1740.7-2942 by searching for morphological changes of its extended radio jets in human timescales. This work was triggered as a result of recent positive detection of fast structural changes in the large-scale jets of the very similar source GRS 1758-258. We carried out an in-depth exploration of the Very Large Array public archives and fully recalibrated all 1E 1740.7-2942 extended data sets in the C configuration of the array. We obtained and analyzed matching beam radio maps for five epochs, covering years 1992, 1993, 1994, 1997 and 2000, with an angular resolution of a few arcseconds.2015A&A...584A.122Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/584/A122CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/584/A122https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/584/A122http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/584/A122https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/584/A122https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/584/A122http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/584/A122GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/584/A122/list (List of fits files)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/584/A122/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/584/A122/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/584/A122/list?GETtext/xml+votable180.050000true265.97557-29.746120.0055555555555555566/28827https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/584/A122?format=asciidefaultJ/A+A/584/A122/listList of fits filesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.DateObservation datetime.epoch;obsnullableFreqFrequencyHzem.freqdoublesizeSize of FITS fileKibytephys.size;meta.fitsintFileNamename of the fits file in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the filemeta.title;meta.filechar