J/A+A/588/A77ivo://CDS.VizieR/J/A+A/588/A77doi:10.26093/cds/vizier.35880077CDSBilek M.Cuillandre J.-C.Gwyn S.Ebrova I.Bartoskova K.,Jungwiert B.Jilkova L.2017-09-12T11:39:15Z2016-03-22T07:47:09ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomyphotometrygalaxy-classification-systemsThe elliptical galaxy NGC 3923 is known to be surrounded by a number of stellar shells, probable remnants of an accreted galaxy. Despite its uniqueness, the deepest images of its outskirts come from the 1980s. On the basis of the modified Newtonian dynamics (MOND), it has recently been predicted that a new shell lies in this region. We obtain the deepest image ever of the galaxy, map the tidal features in it, and search for the predicted shell. The image of the galaxy was taken by the MegaCam camera at the Canada-France-Hawaii Telescope in the g'-band. It reached the surface-brightness limit of 29mag/arcsec^2^. In addition, we reanalyzed an archival HST image of the galaxy.2016A&A...588A..77Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/588/A77CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/588/A77https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/588/A77http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/588/A77https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/588/A77https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/588/A77http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/588/A77GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/588/A77/list (Informations on fits image)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/588/A77/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/588/A77/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/588/A77/list?GETtext/xml+votable180.050000true177.74922-28.794720.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/588/A776/24733https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/588/A77?format=asciiOpticaldefaultJ/A+A/588/A77/listInformations on fits imagerecnoRecord 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.mainscaleScale of the imagearcsec/pixinstr.scalefloatNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS filemeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar