J/other/Ser/184.ivo://CDS.VizieR/J/other/Ser/184.19CDSMillar W.C.White G.L.Filipovic M.D.2017-12-07T07:27:06Z2013-01-29T13:30:16ZCDS support team

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

cds-question@unistra.frgalaxiessupernovaeWe present the results of a study of observational and identification techniques used for surveys and spectroscopy of candidate supernova remnants (SNRs) in the Sculptor Group galaxy NGC300. The goal of this study was to investigate the reliability of using [Sii]:H{alpha}>=0.4 in optical SNR surveys and spectra as an identifying feature of extra-galactic SNRs (egSNRs), and also to investigate the effectiveness of the observing techniques (which are hampered by seeing conditions and telescope pointing errors) using this criterion in egSNR surveys and spectrographs. This study is based on original observations of these objects and archival data obtained from the Hubble Space Telescope which contained images of some of the candidate SNRs in NGC300. We found that the reliability of spectral techniques may be questionable and very high-resolution images may be needed to confirm a valid identification of some egSNRs.2012SerAJ.184...19Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/Ser/184.19CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/Ser/184.19https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/Ser/184.19http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/Ser/184.19https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/Ser/184.19https://vizier.iucaa.in/viz-bin/votable?-source=J/other/Ser/184.19http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/Ser/184.19GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/Ser/184.19/table8 (Calculated pixel positions of Blair et al. (1997ApJS..108..261B) candidate SNRs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/Ser/184.19/table8?https://vizier.iucaa.in/viz-bin/conesearch/J/other/Ser/184.19/table8?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/Ser/184.19/table8?GETtext/xml+votable180.050000true13.5800417-37.62332220.005555555555555556Cone search capability for table J/other/Ser/184.19/table9 (*A comparison of positions of a bright star in the image sets.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/Ser/184.19/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/other/Ser/184.19/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/Ser/184.19/table9?GETtext/xml+votable180.050000true13.704775-37.669997220.0055555555555555566/35536 35538https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/Ser/184.19?format=asciidefaultJ/other/Ser/184.19/table8Calculated pixel positions of Blair et al. (1997ApJS..108..261B) candidate SNRsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintS[1/29] SNR number (<[BL97] N300-SNN> in Simbad)meta.id;meta.mainintRAJ2000BL97 Right ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000BL97 Declination (J2000) (1)pos.eq.dec;meta.mainImage[(D-J) ] Image nameobs.imagecharxpos? X positionpixpos.cartesian.x;instr.detintnullableypos? Y positionpixpos.cartesian.y;instr.detintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/other/Ser/184.19/table9*A comparison of positions of a bright star in the image sets.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintImageImage setobs.imagecharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDRA? Difference in right ascension from BL97 (1)arcsecpos.eq.ra;arith.difffloatnullableDEJ2000Declination (J2000)pos.eq.dec;meta.mainDDE? Difference in declination from BL97 (1)arcsecpos.eq.dec;arith.difffloatnullableDist? Distance from BL97 (1)arcsecpos.angDistancefloatnullable