J/MNRAS/433/2986ivo://CDS.VizieR/J/MNRAS/433/2986doi:10.26093/cds/vizier.74332986CDSWilman D.J.Fontanot F.De Lucia G.Erwin P.Monaco P.2026-01-13T20:15:47Z2014-09-09T12:09:49ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsgalaxy-classification-systemsGalaxies grow primarily via accretion-driven star formation in discs and merger-driven growth of bulges. These processes are implicit in semi-analytical models of galaxy formation, with bulge growth in particular relating directly to the hierarchical build-up of haloes and their galaxies. In this paper, we consider several implementations of two semi-analytical models. Focusing on implementations in which bulges are formed during mergers only, we examine the fractions of elliptical galaxies and both passive and star-forming disc galaxies as functions of stellar and halo mass, for central and satellite systems. This is compared to an observational cross-matched Sloan Digital Sky Survey+Third Reference Catalog of Bright Galaxies z~0 sample of galaxies with accurate visual morphological classifications and M*>10^10.5^M_{sun}_. The models qualitatively reproduce the observed increase of elliptical fraction with stellar mass, and with halo mass for central galaxies, supporting the idea that observed ellipticals form during major mergers. However, the overall elliptical fraction produced by the models is much too high compared with the z~0 data. Since the 'passive' - i.e. non-star-forming - fractions are approximately reproduced, and since the fraction which are star-forming disc galaxies is also reproduced, the problem is that the models overproduce ellipticals at the expense of passive S0 and spiral galaxies. Bulge growth implementations (tuned to reproduce simulations) which allow the survival of residual discs in major mergers still destroy too much of the disc. Increasing the lifetime of satellites, or allowing significant disc regrowth around merger remnants, merely increases the fraction of star-forming disc galaxies. Instead, it seems necessary to reduce the mass ratios of merging galaxies, so that most mergers produce modest bulge growth in disc galaxy remnants instead of ellipticals. This could be a natural consequence of tidal stripping of stars from infalling satellite galaxies, a process not considered in our models. However, a high efficiency of quenching during and/or subsequent to minor mergers is still required to keep the passive fraction high.2013MNRAS.433.2986Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/433/2986CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/155 : Third Reference Cat. of Bright Galaxies (RC3) (de Vaucouleurs+ 1991)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/433/2986https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/433/2986http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/433/2986https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/433/2986https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/433/2986http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/433/2986GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/433/2986/table1 (The SDSSRC3 morphological classifications)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/433/2986/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/433/2986/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/433/2986/table1?GETtext/xml+votable180.050000true7.80038306-0.407338060.0055555555555555565/2629 6744 6/550 552 554 556 4105 4109-4110 4114 4147 4188 4244 4289 4354 4359 4825 4827 4830 4833 4843 4850 4852 4854 4861 4985 4988 4990 5007 5010 5040 5046-5047 5061 5077-5078 5080 5083 5086-5087 5096 5100 5103 5113 5115 5117 5365 5371 5469 5487 5514-5515 5528 5530 5533 5536-5537 5549 5551 5556 5558-5559 5564-5566 5582 5594 5608 5610 5612 5616-5618 5626 5643 5647 5655 5661-5662 5667 5680 5683 5688 5701 5703 5705 5707 5715 5724 5736 5739 5744 5751 5758 5769 5775 5781 5785 5789 5801 5814 5819-5820 5824 5827 5829 5836 5841 5849 5889 5897 5905 5907 5912 5915 5918-5919 5922 5930 5936 5939 5942 5969 5975 5978 5980 5982 6000 6007 6013-6014 6018 6034 6045 6071 6074 6078 6083 6099 6101 6114 6131 6138 6161 6212-6214 6217 6245 6260-6261 6263 6270 6343 6385 6387 6432 6458-6460 6465 6476 6483 6489 6491 6497 6501 6513 6532 6540 6545 6556 6560 6564 6569 6576 6585 6594 6604 6630 6646 7170 7173 7185 7191 7199 7212 7220 7228 7232 7234 7240 7254 7266 7282 7289 7303 7316 7369 7428-7429 7442 7456 7529 8195 8211 8701 8737 8742 9052 9178 9187 9199 9213 9228 9233 9368 9374 9381 9396 9406 9417 9423-9424 9428 9431-9433 9435 9443 9450 9453 9463 9467-9468 9470-9471 9507 9512 9514 9530 9626 9642 9728-9729 9774 9777 9794 9807 9809-9810 9812 9814-9815 9818 9830-9831 9833 9840 9873 9883 9885 9889 9891 9915 9931 9945-9947 9950 9956 10113 10182 10192 10194 10200 10202 10213 10515 10533 10543 10548 10553 10555-10556 10558 10560 10562-10563 10566 10571 10574-10575 10577 10583 10588 10590 10593-10594 10597-10598 10628-10629 10640 10659 10666 10730 10833 10842 10845 10847 10853 10869 10924 10926 10933 10936 10954 10963 10978-10979 10984 10987 10992 10995 11001 11010 11029 11040-11042 11044 11048 11059 11071 11086 11093 11101 11118 11120-11121 11158 11162 11167 11181 11187 11191-11193 11234 11272-11273 11290 11299 11301 11312 11314 11328 11362 11369 11371 11460 11800 11802 11873 11905 12561 17213 17233 17235 17237-17239 17250 17300 17320 17329 17406 17492 17498-17500 17509 17512 17516 17569 17571 17575 17578 17582 17661-17663 17667 17672 17726-17727 17747 17749 17751 17755-17756 17763 17766-17767 17772 17776 17817 17835 17840 17998 18001 18008 18019 18021 18032 18070-18071 18073 18084 18098 18114 18299 18301-18302 18367 18383 18405 18407 18410 18523 18775 18779 18790 18794 18839 18844-18845 18881 19034 19047 19108 19114 19325 19432 19684-19685 19697 19741 19749 19981 20006 20033 20040 21852 23047 23051 23072-23073 23076 23206 23208 25565 25567 25581 25583 25588-25589 25593 25597 25599 25845-25846 25850 25852-25853 25915 25930 25965-25966 25989 25996-25997 26003 26006 26042 26044 26050 26060 26070 26075 26162-26163 26169-26170 26172 26174-26175 26194 26198 26203 26218 26225 26227 26241 26243-26244 26246 26253-26254 26259 26263 26266 26268 26272 26275-26276 26279 26281 26284-26285 26295 26300 26312-26313 26329 26340 26372-26373 26389 26486 26488 26563 26570 26945 26951 26953 26955 26957-26958 26970 26975 26980 26983 26987-26989 26991 26996 27003 27005 27022-27023 27031 27038 27045 27048-27049 27071 27077 27079 27082 27084 27086 27088-27089 27104-27105 27107 27117 27224-27225 27246-27247 27259-27260 27300 27314-27315 27317-27318 27324 27328-27329 27333 27339-27340 27343 27350 27365 27373 27384-27385 27391 27396 27413 27417 27425 27458 27465 27468 27477 27483 27491 27504 27509 27512 27559-27560 27564 27567 27579 27590 27608 27620 27648 27651-27652 27654-27655 27674 27682-27683 27704 27721 27735-27736 27738 27743 27749 27760 27762-27763 27769 27774 27800 27803 27806 27814 27849 27856-27857 27914 29973 30043-30044 31320-31321 31378 31406 32431 32445 32462 36729 36733 36765 36775 36785 36788 36793 36805 36861 49092 49098 49121-49122 49150https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/433/2986?format=asciiOpticaldefaultJ/MNRAS/433/2986/table1The SDSSRC3 morphological classificationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy namemeta.id;meta.maincharRAJ2000SDSS-DR4 Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000SDSS-DR4 Declination (J2000)degpos.eq.dec;meta.mainzSDSS-DR4 Redshiftsrc.redshiftfloatlogM*Stellar mass (1)log(solMass)phys.massfloatMT-RC3RC3 morphological type (VII/155)src.morph.typecharMTypeRevised morphological type based on WE12 (2)src.morph.typecharSimbadNameSimbad column added by the CDSmeta.idnullableNEDNED column added by the CDSmeta.ref.urlchar