J/A+A/477/125ivo://CDS.VizieR/J/A+A/477/125doi:10.26093/cds/vizier.34770125CDSCombi J.A.Albacete-Colombo J.F.Marti J.2008-04-20T22:35:59Z2008-04-20T22:33:10ZCDS support team

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

cds-question@unistra.frx-ray-sourcesradio-sourcesinfrared-sourcesquasarsMicroquasars are ideal natural laboratories for understanding accretion/ejection processes, studying the physics of relativistic jets, and testing gravitational phenomena. Nevertheless, these objects are difficult to find in our Galaxy. The main goal of this work is to increase the number of known systems of this kind, which should allow better testing of high-energy phenomena and more realistic statistical studies of this galactic population to be made. We have developed an improved search strategy based on positional cross-identification with very restrictive selection criteria to find new MQs, taking advantage of more sensitive modern X-ray data. To do this, we made combined use of the radio, infrared, and X-ray properties of the sources, using different available catalogs.2008A&A...477..125Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/477/125CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2007)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/477/125https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/477/125http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/477/125https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/477/125https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/477/125http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/477/125GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/477/125/table1 (X-ray properties of NVSS/XMM-Newton cross-correlated sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/477/125/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/477/125/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/477/125/table1?GETtext/xml+votable180.050000true1.696541763.60091670.0055555555555555566/1115 1293 1504-1506 1791 1847 1852 1965 3029 3042 3066 3136 3256-3257 3310 3617 3651 3851 13191 13301 13947 13956 14018 14314 14321 14379 14454 14646 14696 15384-15385 21641 22252-22253 23637 23952 24461 28690 28817 28821 28827 28830 28918 29070 29090-29091 29097 29214 29267 29517 29523 30254 30312 30366 30657 39327 39396 39784 40124 40126 40615 40640 42419 42491 42611 42841https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/477/125?format=asciiX-rayInfraredRadiodefaultJ/A+A/477/125/table1X-ray properties of NVSS/XMM-Newton cross-correlated sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination sing (J2000)pos.eq.dec;meta.mainHRx? Hardness ratio (M-S)/(M+S) (2)phot.flux;arith.ratiofloatnullableHRy? Hardness ratio (H-S)/(H+S) (2)phot.flux;arith.ratiofloatnullablel_NHLimit flag on NHmeta.code.errorcharNH? Hydrogen column density1e+22cm**-2phys.columnDensityfloatnullableGamma? Power law model indexmeta.code;spect.index;meta.modelledfloatnullableFXX-ray flux in the 0.2-12keV energy band (3)1e-17W.m**-2phot.flux;em.X-rayfloate_FXrms uncertainty on FX1e-17W.m**-2stat.errorfloatIDIdentification flag (4)src.classintn_ID[*+t] Other observations (5)meta.notechar2MASS[2MASS:] Display 2MASS counterpart datameta.ref.urlcharXMM[XMM:] Display the XMM datameta.ref.urlcharNVSS[NVSS:] Display the NVSS datameta.ref.urlcharNameIAU name (HHMMSS.s+DDMMSS) (1)meta.id;meta.mainchar