J/MNRAS/477/4711ivo://CDS.VizieR/J/MNRAS/477/4711doi:10.26093/cds/vizier.74774711CDSGraham M.T.Cappellari M.Li H.Mao S.Bershady M.A.Bizyaev D.,Brinkmann J.Brownstein J.R.Bundy K.Drory N.Law D.R.Pan K.,Thomas D.Wake D.A.Weijmans A.-M.Westfall K.B.Yan R.2024-08-18T20:19:22Z2021-08-20T14:18:44ZCDS support team

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

cds-question@unistra.frgalaxiesgalaxy-classification-systemsWe measure {lambda}_Re_, a proxy for galaxy specific stellar angular momentum within one effective radius, and the ellipticity, {epsilon}, for about 2300 galaxies of all morphological types observed with integral field spectroscopy as part of the Mapping Nearby Galaxies at Apache Point Observatory survey, the largest such sample to date. We use the ({lambda}_Re_, {epsilon}) diagram to separate early-type galaxies into fast and slow rotators. We also visually classify each galaxy according to its optical morphology and two-dimensional stellar velocity field. Comparing these classifications to quantitative {lambda}_Re_ measurements reveals tight relationships between angular momentum and galaxy structure. In order to account for atmospheric seeing, we use realistic models of galaxy kinematics to derive a general approximate analytic correction for {lambda}_Re_. Thanks to the size of the sample and the large number of massive galaxies, we unambiguously detect a clear bimodality in the ({lambda}_Re_, {epsilon}) diagram which may result from fundamental differences in galaxy assembly history. There is a sharp secondary density peak inside the region of the diagram with low {lambda}_Re_ and {epsilon}<0.4, previously suggested as the definition for slow rotators. Most of these galaxies are visually classified as non-regular rotators and have high velocity dispersion. The intrinsic bimodality must be stronger, as it tends to be smoothed by noise and inclination. The large sample of slow rotators allows us for the first time to unveil a secondary peak at +/-90{deg} in their distribution of the misalignments between the photometric and kinematic position angles. We confirm that genuine slow rotators start appearing above M>=2x10^11^M_{sun}_ where a significant number of high-mass fast rotators also exist.2018MNRAS.477.4711Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/477/4711CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/477/4711https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/477/4711http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/477/4711https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/477/4711https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/477/4711http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/477/4711GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/477/4711/table2 (All the quantities and properties required to plot all the figures in Section 4)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/477/4711/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/477/4711/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/477/4711/table2?GETtext/xml+votable180.050000true230.507458943.53232810.0055555555555555564/414 5/1206 1279 1342-1343 1382-1383 1388-1390 1394-1395 1400-1401 1419 1437 1439 1450 1456-1457 1480 1553-1555 1599 1630 1635 1638-1641 1643-1646 1650 1660 1662-1663 1685 1728 1793 1808 1834 2316 2367-2368 2376-2377 2379 2401 2408 2410 2446 2457 2463 2485 2490 2496 2504 2506 2528 2545 2594 2621 2648 2650 2668 2672 2675 2715 2737-2738 2758 2760 2845 2849 2851-2852 2898 3099 4774 5797-5798 5801 7037 7070 7089-7090 7510 6/4661 4663 4682 4704-4706 4712-4713 4793-4795 4798 4813 4817-4819 4822 4846-4847 4852 4854-4855 4857 4860-4861 4917-4919 4925 4960 4962 4968 5327 5338 5349-5351 5356 5358-5360 5362-5363 5463 5469-5471 5492-5494 5523 5526-5527 5547 5551 5564-5565 5567 5574-5575 5584 5586 5592 5594 5609 5611-5613 5615 5669-5671 5680 5683 5688 5690 5713 5715-5717 5719 5726-5727 5738-5739 5741-5743 5745 5752 5754-5755 5781 5783 5789 5791 5797-5799 5804-5806 5808 5810 5816 5819 5833-5834 5836 5838 5840-5841 5844-5846 5857 5859-5860 5862 5865 5867-5868 5870 5888-5890 5904 5917-5919 5926 5928-5929 5953-5958 6161 6209 6211 6226 6241 6244-6245 6247 6270-6271 6359 6367 6385 6387 6389-6391 6393 6395 6440 6442-6443 6528 6534-6535 6537-6539 6547 6569-6571 6588-6589 6591 6604 6606-6610 6612 6622 6644 6646-6647 6916-6917 6928-6930 6932-6933 6976 6981 6992-6993 6996 7169 7184-7186 7213 7215 7224-7226 7230-7231 7236-7237 7274 7301 7308-7309 7311 7313-7315 7317-7321 7323-7324 7330-7331 7360-7361 7363-7364 7366-7370 7680-7681 8698-8699 8701-8702 8888 8890-8891 9029 9031 9040 9042 9045-9047 9110-9111 9116-9117 9119 9154-9155 9161-9162 9215 9231 9242 9252-9253 9335 9341 9384 9386 9459 9461-9463 9465-9467 9478 9480-9481 9487 9512-9513 9515 9520 9601 9609 9612 9638 9644 9646-9647 9728 9777 9779-9780 9788 9790 9807-9809 9811 9813-9815 9817-9818 9820-9822 9840-9841 9844 9847 9849-9851 9880 9882-9883 9887 9893 9895 9898-9899 9901-9906 9908-9909 9911-9912 9914 9930-9931 9933 9936-9937 9944 9946 9952-9953 9955-9956 9958 9964 9983 9988 9990 9992-9993 9995-9996 9998 10022 10030 10092-10093 10095-10096 10098-10099 10104-10106 10120 10154 10179 10188 10191-10192 10194 10200 10202 10213 10215 10221 10226 10256-10257 10267 10269-10271 10292-10293 10295 10312 10336 10380 10382 10400-10401 10404 10463 10493 10551 10559 10574 10580-10581 10583 10596 10604 10627 10633 10635-10638 10649-10652 10654 10656-10658 10663 10676 10692 10694-10696 10698-10699 10704 10706-10708 10710 10712-10713 10716 10720-10721 10723 10725-10726 10736 10749 10855 10857 10859 10866-10867 10869-10874 10911 10926-10930 10932-10934 10937 10939-10941 10956-10957 10959-10960 10962-10963 10976-10978 11019 11023 11036-11037 11044-11045 11047-11049 11053 11058 11264-11266 11268-11269 11279 11290-11291 11301 11303 11310-11314 11322-11323 11326 11347-11350 11355-11358 11377 11379 11384 11388 11393 11412 11414 11416 11424 11426-11428 11430 11432-11433 11520 11528 11586-11588 11596 11598 12375 12380-12381 12383 12387 12389-12391 12395 12408 12552 12554 17741 17746-17747 17750 17753 17755-17756 17758 17776 18769 18771-18772 18774-18775 18777 18779-18780 18782 19086-19087 19091 19102 19109 19120-19122 19380 19382-19383 19385 19387 19389-19390 19432 23045 23047 23057-23060 23062 23101-23103 23144 23146-23147 23181-23183 23185-23187 23196-23198 23201 23203 23212 23216 23218 23232-23233 28127 28269 28271 28286 28319 28340-28341 28364-28366 28368-28370 28384-28385 28627 28629-28631 28633 28636 28638-28639 30035 30044 30046 30065 32497 32499 32501-32503 32508-32509 32672 32680https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/477/4711?format=asciiOpticaldefaultJ/MNRAS/477/4711/table2All the quantities and properties required to plot all the figures in Section 4SimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMaNGAMaNGA-ID associated with a unique MaNGA galaxymeta.id;meta.maincharClean[Y/N] In clean sample?src.samplecharMtypeHubble classification type (1)meta.notecharClasskinKinematic classification (F = flagged)meta.code.classcharlog(Re)ccircular effective radiuslog(deg)phys.angSizefloatlog(Re)lsemimajor axislog(kpc)phys.size.smajAxisfloatPSFFWHM of the PSFarcsecphys.angSizefloatlambdaRe? Proxy for galaxy specific stellar angular momentum within one effective radiusphys.angMomentumdoublenullableEllFinal ellipticitysrc.ellipticityfloatPAphFinal photometric position angle (East of North)pos.posAngfloatPAkin? Knematic position angle (East of North)degpos.posAngfloatnullablee_PAkin? rms uncertainty on PAkindegstat.errorfloatnullablelog(M*)Stellar masslog(solMass)phys.massfloatlog(sigmae)? Effective velocity dispersionlog(km.s**-1)phys.veloc.dispersiondoublenullableu_log(sigmae)[I] I for infinitymeta.code.errorcharzRedshiftsrc.redshiftfloatnSersic indexstat.fit.paramfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullable