J/MNRAS/493/3238ivo://CDS.VizieR/J/MNRAS/493/3238doi:10.26093/cds/vizier.74933238CDSMoura T.C.de Carvalho R.R.Rembold S.B.Trevisan M.Ribeiro A.L.B.,Perez-Villegas A.La Barbera F.Stalder D.H.Rosa R.R.2024-08-20T20:16:30Z2023-07-19T14:24:02ZCDS support team

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

cds-question@unistra.frgalaxiesgalaxy-groupsgalaxy-classification-systemsgalaxy-kinematicsvisible-astronomyWe present results on the study of the stellar population in early-type galaxies (ETGs) belonging to 151 compact groups (CGs). We also selected a field sample composed of 846 ETGs to investigate environmental effects on galaxy evolution. We find that the dependences of mean stellar ages, [Z/H] and [{alpha}/Fe] on central stellar velocity dispersion are similar, regardless where the ETG resides, CGs or field. When compared to the sample of centrals and satellites from the literature, we find that ETGs in CGs behave similarly to centrals, especially those embedded in low-mass haloes (M_h_<10^12.5^M_{sun}_). Except for the low-mass limit, where field galaxies present a star-forming signature, not seen in CGs, the ionization agent of the gas in CG and field galaxies seem to be similar due to hot, evolved low-mass stars. However, field ETGs present an excess of H{alpha} emission relative to ETGs in CGs. Additionally, we performed a dynamical analysis, which shows that CGs present a bimodality in the group velocity dispersion distribution - a high- and low-{sigma} mode. Our results indicate that high-{sigma} groups have a smaller fraction of spirals, shorter crossing times, and a more luminous population of galaxies than the low-{sigma} groups. It is important to emphasize that our findings point to a small environmental impact on galaxies located in CGs. The only evidence we find is the change in gas content, suggesting environmentally driven gas loss.2020MNRAS.493.3238Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/493/3238CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/395/255 : Compact groups of galaxies in SDSS DR6 (McConnachie+, 2009)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/MNRAS/435/2835 : Morphological types from Galaxy Zoo 2 (Willett+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/493/3238https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/493/3238http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/493/3238https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/493/3238https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/493/3238http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/493/3238GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/493/3238/table2 (The morphological classification of the galaxies belonging to our MC09 sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/3238/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/3238/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/3238/table2?GETtext/xml+votable180.050000true155.54169538.52319610.0055555555555555566/4167 4311 4343 4351 4446 4482 4624 4662 4676 4704 4707 4813 4870 4939 4999 5019 5023 5116 5140 5236 5280 5338 5370 5411 5413 5431 5474 5502 5535-5536 5538 5579 5726 5879 5900 6000 6010 6012 6025 6116 6241 6423 6483 6522 6532 6586 7224 7301 7450 8203 8252 8403 8578 8694 8791 8812 8825 8827 8991 9005 9196 9227 9249 9257 9261 9314 9404 9482-9483 9642 9734 9743 9873 10146 10256 10308 10369 10599 10619 10784 10830 10936 11198 11293 11356 11397 11423 11436 11454 11476 11506 11778 17818 17840 18012 18014 18023 18028 18032 18085 18096 18789 21847 23197 23216 26071 26079 26097 26369-26370 26511 26531 26990 27029 27085 27096 27098 27257 27398 27446 27482 27493 27515 27572 27607 27693 27727 27731 27741 27753 27770 27803 27847 27868 27962 27965 27969 27983 28089 28390 28404 28489 28563 28617 31410 31424 31457 31459 31723 32508https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/493/3238?format=asciiOpticaldefaultJ/MNRAS/493/3238/table2The morphological classification of the galaxies belonging to our MC09 sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupIDNumber of the group given in McConnachie et al. (2009MNRAS.395..255M, Cat. J/MNRAS/395/255)meta.id.parentintGalIDPosition of the galaxy in order of brightness in the groupmeta.idintObjIDObject identification in the SDSS DR12 databasemeta.id;meta.mainClassMorphological classification (1)src.morph.typecharFeatureAny 'odd' additional feature (2)meta.code.classchar_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/MNRAS/493/3238/tablea2Dynamical parameters for the CGs of the samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupIDNumber of the group given in McConnachie et al. (2009MNRAS.395..255M, Cat. J/MNRAS/395/255)meta.id;meta.mainintNmembNumber of members in the groupmeta.numberintrMAGTotal absolute magnitude of the group in the r-bandmagphys.magAbsdoublevdispVelocity dispersion of the group {sigma}km/sphys.veloc.dispersiondoubleRharmHarmonic radiusMpcphys.size.radiusdoublelogMLogarithm of the dynamical masssolMasspos.parallax.dyndoubletcCrossing time (in H_0_^-1^)time.crossingdoublelogrhoLogarithm of the spatial densityphys.densitydoublefspSpiral fractionmeta.numberfloatClass[L/H] Dynamical class (L: Low {sigma}, H: High {sigma})meta.code.classchar