J/A+A/507/241ivo://CDS.VizieR/J/A+A/507/241doi:10.26093/cds/vizier.35070241CDSParedes J.M.Marti J.Ishwara-Chandra C.H.Sanchez-Sutil J.R.,Munoz-Arjonilla A.J.Moldon J.Peracaula M.Luque-Escamilla P.L.,Zabalza V.Bosch-Ramon V.Bordas P.Romero G.E.Ribo M.2009-12-31T22:44:07Z2009-12-31T23:36:26ZCDS support team

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

cds-question@unistra.frgamma-ray-astronomyradio-sourcesx-ray-sourcesh-ii-regionsMGROJ2019+37 is an unidentified extended source of very high energy gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653 discovered by AGILE and associated with PSR J2021+3651 could contribute to the emission from MGRO J2019+37. The aim of this paper is to identify radio and near-infrared sources in the field of the extended TeV source MGRO J2019+37, and study potential counterparts to explain its emission. We surveyed a region of about 6 square degrees with the Giant Metrewave Radio Telescope (GMRT) at the frequency 610MHz. We also observed the central square degree of this survey in the near-infrared Ks-band using the 3.5m telescope in Calar Alto. Archival X-ray observations of some specific fields are included. VLBI observations of an interesting radio source were performed. We explored possible scenarios to produce the multi-TeV emission from MGRO J2019+37 and studied which of the sources could be the main particle accelerator.2009A&A...507..241Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/507/241CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/507/241https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/507/241http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/507/241https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/507/241https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/507/241http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/507/241GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/507/241/table2 (List of GMRT sources detected)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/507/241/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/507/241/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/507/241/table2?GETtext/xml+votable180.050000true302.928041737.70236110.0055555555555555565/3654-3655 3660 6/14629 14631 14644-14646https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/507/241?format=asciiGamma-rayX-rayRadiodefaultJ/A+A/507/241/table2List of GMRT sources detectedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqGMRT source numbermeta.id;meta.mainintGMRTGMRT source name (JHHMMSS.s+DDMMSS)meta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpeakPeak flux density at 610MHz (in mJy/beam)mJyphot.flux.density;em.radio.400-750MHzfloatNoiseLocal noise (in mJy/beam)mJystat.snrfloatSintIntegrated flux density at 610MHzmJyphot.flux.density;em.radio.400-750MHzfloate_SintError in integrated flux densitymJystat.errorfloatIRNear-infrared detection (1)meta.codecharKsmag? Magnitude (apparent) in Ks filtermagphot.mag;em.IR.KfloatnullableXRX-ray detection (2)meta.codecharXFlux? X-ray (0.2-12keV) flux (10-13erg/cm2/s)1e-16W.m**-2phot.flux;em.X-rayfloatnullablee_XFlux? Error in X-ray flux1e-16W.m**-2stat.errorfloatnullable