J/MNRAS/478/4657ivo://CDS.VizieR/J/MNRAS/478/4657doi:10.26093/cds/vizier.74784657CDSPahwa I.Saha K.2024-08-18T20:20:16Z2021-12-10T14:47:09ZCDS support team

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

cds-question@unistra.frgalaxiesphotometrygalaxy-classification-systemsWe study the structural properties of Low-Surface-Brightness galaxies (LSB) using a sample of 263 galaxies observed by the Green Bank Telescope. We perform 2D decompositions of these galaxies in the Sloan Digital Sky Survey g, r, and i bands using the GALFIT software. Our decomposition reveals that about 60 per cent of these galaxies are bulgeless i.e. their light distributions are well modelled by pure exponential discs. The rest of the galaxies were fitted with two components: a Sersic bulge and an exponential disc. Most of these galaxies have bulge-to-total (B/T) ratio less than 0.1. However, of these 104 galaxies, 20 per cent have B/T>0.1 i.e. hosting significant bulge component and they are more prominent amongst the fainter LSBs. According to g-r colour criteria, most of the LSB galaxies in our sample are blue, with only 7 classified as red LSBs. About 15 per cent of the LSB galaxies (including both blue and red) in our sample host stellar bars. The incidence of bars is more prominent in relatively massive blue LSB galaxies with very high gas fraction. These findings may provide important clues to the formation and evolution of LSB galaxies - in particular on the bar/bulge formation in faint LSB discs.2018MNRAS.478.4657Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/478/4657CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/478/4657https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/478/4657http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/478/4657https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/478/4657https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/478/4657http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/478/4657GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/478/4657/gband (GALFIT g-band decomposition)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/478/4657/gband?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/478/4657/gband?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/478/4657/gband?GETtext/xml+votable180.050000true7.3024933.104140.005555555555555556Cone search capability for table J/MNRAS/478/4657/rband (GALFIT r-band decomposition)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/478/4657/rband?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/478/4657/rband?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/478/4657/rband?GETtext/xml+votable180.050000true7.3024933.104140.005555555555555556Cone search capability for table J/MNRAS/478/4657/iband (GALFIT i-band decomposition)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/478/4657/iband?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/478/4657/iband?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/478/4657/iband?GETtext/xml+votable180.050000true7.3024933.104140.0055555555555555566/673 739 1012-1013 1563 1678 1697-1698 2104 2128 2164 2417 2427 2509 2661 2677 2680 2711 2816 2840 2888 3075 3949-3950 5200 5390 5407 5428 5480 5519 5530 5559 5570 5620 5629 5703 5752 5758 5771 5784 5788 5796 5805 5823 5857 5859 5905-5906 5916 5935 5943 6003 6005 6008 6066 6068 6074 6087 6090 6092 6108 6126 6132 6138 6141 6389 6398 6502 6561 6615 6730 6752 7164 7175 7190 7196 7204 7239 7244 7265 7329 7356 7374 7381 7425 7431 7437 7457 7491 7500-7501 7523 7541 7590 7597 7601-7602 7607 7609 7684 7827 8024 8045 8048 8165 8167 8492 8519 8548 8643 8674 9046 9052 9060 9161 9276 9374 9394 9714 9876 9882 9887 9899 9913 9931 9943 9960 10011 10168 10220 10224 10463 10525 10581 10616 10633-10634 10637-10638 10673 10703 10714 10727 10740 10742 10750 10781 10798 10839 10899 10912 10924 10934 10950 10961 10977 10980 10990 11008 11013 11028-11029 11047 11059 11068 11100 11161 11218 11225 11247 11251 11253 11263 11281 11313 11325 11374 11402 11416 11435 11437 11451 11475 11491 11496 11535 11551 11553 11564 11612 11738 11783 11794 11800 11813 11914-11915 11936 11955 12334 12368 12452 12721 12742 13106 13588 13907 13939 15551 16295 17807 18007 18078 18144 18148 18221 18287 18322 18327 18763 18770 18800 19041 19430 19444 19639 19814 19955 20056 20115 20319 20343 20366 22951 22953-22954 23000 23140 23143 23839 24249 25936 25955 26159 26173 26220 26247 27024 28486 30041 30144 31400 31475 31740 32702 36861https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/478/4657?format=asciiOpticaldefaultJ/MNRAS/478/4657/gbandGALFIT g-band decompositionSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy ID (ANNN)meta.id;meta.maincharobjIDGalaxy SDSS objIDmeta.idRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftdoublerunSDSS run IDmeta.idintrerunSDSS rerun IDmeta.idintcamcolSDSS camcol IDmeta.idintFieldSDSS field IDmeta.id;obs.fieldintSersicX? Sersic profile for the bulge component X positionpixpos.cartesian.x;instr.detfloatnullableSersicY? Sersic profile for the bulge component Y positionpixpos.cartesian.y;instr.detfloatnullableSersicmag? Sersic profile for the bulge component magnitude in Bandmagphot.magfloatnullableSersicRe? Sersic profile for the bulge component effective radiuskpcphys.angSize;srcfloatnullableSersicn? Sersic profile for the bulge component Sersic numberstat.fit.paramfloatnullableSersicba? Sersic profile for the bulge component b/aphys.size.axisRatiofloatnullableSersicPA? Sersic profile for the bulge component position angledegpos.posAngfloatnullableExpXExponential profile for the disc component X positionpixpos.cartesian.x;instr.detfloatExpYExponential profile for the disc component Y positionpixpos.cartesian.y;instr.detfloatExpmagExponential profile for the disc component magnitude in Bandmagphot.magfloatExpRsExponential profile for the disc component scalelength of the stellar disckpcphys.angSize;srcfloatExpbaExponential profile for the disc component b/aphys.size.axisRatiofloatExpPAExponential profile for the disc component position angledegpos.posAngfloatSloanDisplay the online SDSS DR14 data for this objectmeta.ref.urlcharJ/MNRAS/478/4657/rbandGALFIT r-band decompositioncamcolSDSS camcol IDmeta.idintExpXExponential profile for the disc component X positionpixpos.cartesian.x;instr.detfloatExpYExponential profile for the disc component Y positionpixpos.cartesian.y;instr.detfloatExpmagExponential profile for the disc component magnitude in Bandmagphot.magfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy ID (ANNN)meta.id;meta.maincharobjIDGalaxy SDSS objIDmeta.idRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftdoublerunSDSS run IDmeta.idintrerunSDSS rerun IDmeta.idintFieldSDSS field IDmeta.id;obs.fieldintSersicX? Sersic profile for the bulge component X positionpixpos.cartesian.x;instr.detfloatnullableSersicY? Sersic profile for the bulge component Y positionpixpos.cartesian.y;instr.detfloatnullableSersicmag? Sersic profile for the bulge component magnitude in Bandmagphot.magfloatnullableSersicRe? Sersic profile for the bulge component effective radiuskpcphys.angSize;srcfloatnullableSersicn? Sersic profile for the bulge component Sersic numberstat.fit.paramfloatnullableSersicba? Sersic profile for the bulge component b/aphys.size.axisRatiofloatnullableSersicPA? Sersic profile for the bulge component position angledegpos.posAngfloatnullableExpRsExponential profile for the disc component scalelength of the stellar disckpcphys.angSize;srcfloatExpbaExponential profile for the disc component b/aphys.size.axisRatiofloatExpPAExponential profile for the disc component position angledegpos.posAngfloatSloanDisplay the online SDSS DR14 data for this objectmeta.ref.urlcharJ/MNRAS/478/4657/ibandGALFIT i-band decompositionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy ID (ANNN)meta.id;meta.maincharobjIDGalaxy SDSS objIDmeta.idRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftdoublerunSDSS run IDmeta.idintrerunSDSS rerun IDmeta.idintcamcolSDSS camcol IDmeta.idintFieldSDSS field IDmeta.id;obs.fieldintSersicX? Sersic profile for the bulge component X positionpixpos.cartesian.x;instr.detfloatnullableSersicY? Sersic profile for the bulge component Y positionpixpos.cartesian.y;instr.detfloatnullableSersicmag? Sersic profile for the bulge component magnitude in Bandmagphot.magfloatnullableSersicRe? Sersic profile for the bulge component effective radiuskpcphys.angSize;srcfloatnullableSersicn? Sersic profile for the bulge component Sersic numberstat.fit.paramfloatnullableSersicba? Sersic profile for the bulge component b/aphys.size.axisRatiofloatnullableSersicPA? Sersic profile for the bulge component position angledegpos.posAngfloatnullableExpXExponential profile for the disc component X positionpixpos.cartesian.x;instr.detfloatExpYExponential profile for the disc component Y positionpixpos.cartesian.y;instr.detfloatExpmagExponential profile for the disc component magnitude in Bandmagphot.magfloatExpRsExponential profile for the disc component scalelength of the stellar disckpcphys.angSize;srcfloatExpbaExponential profile for the disc component b/aphys.size.axisRatiofloatExpPAExponential profile for the disc component position angledegpos.posAngfloatSloanDisplay the online SDSS DR14 data for this objectmeta.ref.urlchar