J/ApJ/616/707ivo://CDS.VizieR/J/ApJ/616/707doi:10.26093/cds/vizier.16160707CDSHunt L.K.Malkan M.A.2017-09-22T16:16:37Z2005-08-23T23:21:27ZCDS support team

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

cds-question@unistra.frgalaxy-classification-systemsactive-galactic-nucleigalaxiesinfrared-sourcesWhy are the nuclei of some galaxies more active than others? If most galaxies harbor a central massive black hole, the main difference is probably in how well it is fueled by its surroundings. We investigate the hypothesis that such a difference can be seen in the detailed circumnuclear morphologies of galaxies using several quantitatively defined features, including bars, isophotal twists, boxy and disky isophotes, and strong nonaxisymmetric features in unsharp-masked images. These diagnostics are applied to 250 high-resolution images of galaxy centers obtained in the near-infrared with NICMOS on the Hubble Space Telescope. To guard against the influence of possible biases and selection effects, we have carefully matched samples of Seyfert 1, Seyfert 2, LINER, starburst, and normal galaxies in their basic properties, taking particular care to ensure that each was observed with a similar average scale (10-15pc/pixel).2004ApJ...616..707Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/616/707CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/616/707https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/616/707http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/616/707https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/616/707https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/616/707http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/616/707GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/616/707/table2 (Sample properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/616/707/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/616/707/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/616/707/table2?GETtext/xml+votable180.050000true13.17375-31.2077780.005555555555555556Cone search capability for table J/ApJ/616/707/table4 (Properties of 78 of the 85 rejected galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/616/707/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/616/707/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/616/707/table4?GETtext/xml+votable180.050000true88.559583-51.9755560.0055555555555555566/595 664 932 1008 1701 2229 2282 2433 3446 4511 4520 4691 5181 5202 5306 5463 5564 5572 5586 5589 5590 5594 5599 5634 5643 5715 5827 5970 5975 5982 5989 6948 7214 7225 7241 7374 7424 7485 7642 7704 7741 7921 7925 7957 7997 8195 8196 8197 8261 8492 8728 9093 9121 9133 9437 9449 9750 9882 10364 10366 10454 10475 10501 10531 10560 10636 10723 10727 10817 10841 10924 10991 11006 11029 11173 11372 11379 11389 11392 11398 11416 11435 11446 11460 11738 11776 11777 11800 11886 12005 12122 12619 13162 13401 13489 13511 13522 15955 16898 17235 17525 17779 17850 18214 18246 18398 18484 18536 18838 18895 19296 19360 19442 19611 19614 19619 19954 20000 20230 20388 20896 21996 22654 23171 23887 24896 25083 25173 25282 25742 25790 25890 25907 25946 25972 25989 26071 26117 26148 26271 26303 26317 26336 26393 26803 26967 27041 27426 27464 27512 27515 27721 27738 27767 27937 28046 28141 28167 28172 28294 28463 28495 28517 28535 28593 28612 29795 31340 31880 32713 33795 33920 34051 34052 34290 34352 34531 35193 35629 35746 36107 36151 36242 36276 36716 36786 38671 38703 38704 38841 40221 40234 40363 40384 40472 40939 42016 42027 42120 42923 43226 43242 43318 43339 43662 43697 43824 43925 43948 43956 44636 44741 44766 45446 45597 45636 45674 45735 45746 45748 45816 45883 46175 46346 46399 46481 46519 46525 46689 46808 46811 46916 46999 47154 47158 47308 47415 48484https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/616/707?format=asciiOpticalInfrareddefaultJ/ApJ/616/707/table2Sample propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintATypeActivity classcharNameObject namecharf_Name[d*] Eliminated galaxy (1)charzRedshiftfloatDistDistanceMpcfloatMTypeThe RC3 (Cat. <VII/155>) morphology typecharMajAxisOptical major axisarcminfloatMinAxisOptical minor axisarcminfloatBmagThe apparent B band magnitudemagfloatBMAGThe absolute B band magnitudemagfloatScaleRelative spatial resolutionpc/pixfloatBar[Y? ] Bar found?charTwist[Y? ] Isophotal twist found?char3theta[Y? ] Large 3{theta} residual term found?charcos4[DB? ] Boxy/disky isophote found (2)charUSM[+-] High-amplitude non-axisymmetric structure (3)charSimbadSimbad column added by the CDScharNEDSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/616/707/table4Properties of 78 of the 85 rejected galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintATypeActivity classcharNameObject namecharf_Name[d*] Eliminated galaxy (1)charzRedshiftfloatDistDistanceMpcfloatMTypeThe RC3 (Cat. <VII/155>) morphology typecharMajAxisOptical major axisarcminfloatMinAxisOptical minor axisarcminfloatBmagThe apparent B band magnitudemagfloatBMAGThe absolute B band magnitudemagfloatScaleRelative spatial resolutionpc/pixfloatBar[Y? ] Bar found?charTwist[Y? ] Isophotal twist found?char3theta[Y? ] Large 3{theta} residual term found?charcos4[DB? ] Boxy/disky isophote found (2)charUSM[+-] High-amplitude non-axisymmetric structure (3)charSimbadSimbad column added by the CDScharNEDSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main