J/MNRAS/329/775ivo://CDS.VizieR/J/MNRAS/329/775doi:10.26093/cds/vizier.73290775CDSRoy S.Rao A.P.2024-06-27T20:17:57Z2003-01-04T19:59:11ZCDS support team

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

cds-question@unistra.frsupernova-remnantsradio-sourcesWe have observed two fields - Field I (l=3.2{deg}, b=1.0{deg}) and Field II (l=356.8{deg}, b=-0.1{deg}) - with the Giant Metrewave Radio Telescope (GMRT) at 330MHz. In the first field, we have studied the candidate supernova remnant (SNR) G3.1-0.6 and, based on its observed morphology, spectral index and polarization, confirmed it to be an SNR. We find this supernova to have a double ring appearance with a strip of emission on its western side passing through its centre. We have discovered two extended curved objects in the second field, which appears to be part of a large shell-like structure. It is possibly the remains of an old supernova in the region. Three suspected SNRs, G356.3-0.3, G356.6+0.1 and G357.1-0.2, detected in the MOST 843-MHz survey of the GC region appear to be located on this shell-like structure. While both G356.3-0.3 and G356.6+0.1 seem to be parts of this shell, G357.1-0.2, which has a steeper spectrum above 1GHz, could be a background SNR seen through the region. Our Hi absorption observation towards the candidate SNR G357.1-0.2 indicates that it is at a distance of more than 6kpc from us.2002MNRAS.329..775Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/329/775CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/329/775https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/329/775http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/329/775https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/329/775https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/329/775http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/329/775GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/329/775/table4 (Compact sources in the field centred on G3.2-1.0)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/329/775/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/329/775/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/329/775/table4?GETtext/xml+votable180.050000true268.508333-27.2005560.005555555555555556Cone search capability for table J/MNRAS/329/775/table5 (Compact sources in the field centred on G356.8-0.1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/329/775/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/329/775/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/329/775/table5?GETtext/xml+votable180.050000true263.918333-32.3150.0055555555555555565/7203 6/28806 28811 28824 28873-28876 28878https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/329/775?format=asciiRadiodefaultJ/MNRAS/329/775/table4Compact sources in the field centred on G3.2-1.0recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[RR2002]Object Galactic coordinatesmeta.id;meta.maincharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainPeakPeak flux at 330MHz (in Jy/beam)Jyphot.flux.density;em.radio.200-400MHzfloatS0.33GHzTotal flux density at 330MHzJyphot.flux.density;em.radio.200-400MHzfloatl_S1.4GHzLimit flag on S1.4GHzmeta.code.errorcharS1.4GHzTotal flux density at 1.4GHzJyphot.flux.density;em.radio.750-1500MHzfloatDistDistance from center (G3.2-1.0)arcminpos.angDistancefloatComComments (G1)meta.notecharJ/MNRAS/329/775/table5Compact sources in the field centred on G356.8-0.1ComComments (G1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[RR2002]Object Galactic coordinatesmeta.id;meta.maincharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainPeakPeak flux at 330MHz (in Jy/beam)Jyphot.flux.density;em.radio.200-400MHzfloatS0.33GHzTotal flux density at 330MHzJyphot.flux.density;em.radio.200-400MHzfloatl_S1.4GHzLimit flag on 1.4GHzmeta.code.errorcharS1.4GHzTotal flux density at 1.4GHzJyphot.flux.density;em.radio.750-1500MHzfloatn_S1.4GHz[(NV) ] NV: 1.4-GHz flux quoted from the NVSSmeta.notecharS5GHz? Flux density at 5GHz (G356.8-0.1)Jyphot.flux.density;em.radio.3-6GHzfloatnullableDistDistance from centerarcminpos.angDistancefloat