Isolated galaxies, pairs, and triplets J/A+A/695/A256 ivo://CDS.VizieR/J/A+A/695/A256 doi:10.26093/cds/vizier/bc-nq/lcfg CDS Argudo-Fernandez M. Duarte Puertas S. Verley S. 2026-07-03T06:36:40Z 2025-03-26T08:35:45Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr galaxies spectroscopy chemical-abundances The correlations between star formation rate (SFR), stellar mass (M), and gas-phase metallicity (12+log(O/H)) for star-forming (SF) galaxies, known as global scaling relations or fundamental relations, have been studied during the last decades to understand the evolution of galaxies. However, the origin of these correlations and their scatter, which may also be related to their morphology or environment, is still a subject of debate. In this work, we establish fundamental relations, for the first time, in isolated systems in the local universe (with 0.005<=z<=0.080), which can give insight into the underlying physics of star-formation. We use a sample of isolated galaxies to explore whether star formation is regulated by smooth secular processes. In addition, galaxies in physically bound isolated pairs and isolated triplets may also interact with each other, where interaction itself may enhance/regulate star-formation and the distribution of gas and metals within galaxies. We compared our results with a sample of star-forming galaxies in the SDSS. We found that, on average, at a fixed stellar mass, the SIG SF galaxies have lower SFR values than Main Sequence (MS) SF galaxies in the SDSS and central galaxies in the SIP and SIT. On average, SIG galaxies have higher 12+log(O/H) values than galaxies in the SIP, SIT, and comparison sample. When distinguishing between central and satellite galaxies in the SIP and SIT, centrals and SIG galaxies present similar values (~8.55) while satellites have values close to M33 (~8.4). Using the D_n_(4000) parameter as a proxy of the age of the stellar populations we found that, on average, SIG and central galaxies have higher D_n_(4000) values than satellites and comparison galaxies. Based on our results for isolated galaxies, we propose a ground level nurture free SFR-M and 12+log(O/H)-SFR-M relations for SF galaxies in the local Universe. 2025A&A...695A.256A https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/695/A256 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/A+A/578/A110 : Isolated galaxies, pairs & triplets (Argudo-Fernandez+, 2015) J/A+A/599/A71 : 209276 SDSS star-forming galaxies aperture-free https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/695/A256 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/695/A256 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/695/A256 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/695/A256 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/695/A256 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/695/A256 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/695/A256/table1 (Compiled data for the star-forming galaxies in the SIG, SIP, and SIT catalogues) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/695/A256/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/695/A256/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/695/A256/table1? 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31690-31692 31707 31713 31716 31721-31722 31726 31730 31736 32409 32414 32427 32429 32438 32445-32446 32459 32481 32489 32492 32508 32672 32681-32682 36785 36787 36792-36793 36807-36808 45046 49011 49018 49085 49102 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/695/A256?format=ascii default J/A+A/695/A256/table1 Compiled data for the star-forming galaxies in the SIG, SIP, and SIT catalogues e_Dn(4000) Uncertainties for the narrow definition of the 4000{AA} break strength from the MPA-JHU catalogue stat.error float Catalogue Indicates if the galaxy is coming from the SIG, SIP, or SIT catalogues src.class char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SpecObjID SDSS spectroscopic name meta.id;meta.main logM log10 of the stellar mass (1) log(solMass) phys.mass float e_logM Uncertainty for log10 of the stellar mass log(solMass) stat.error float logSFR log10 of the aperture corrected star formation rate (2) log(solMass.yr**-1) phys.SFR;instr.fov float e_logSFR Uncertainty for log10 of the aperture corrected star formation rate log(solMass.yr**-1) stat.error;phys.SFR float 12+log(O/H) ? Oxygen abundance (3) phys.abund float nullable e_12+log(O/H) ? Uncertainties for the oxygen abundance stat.error float nullable Dn(4000) Narrow definition of the 4000{AA} break strength in Balogh et al. 1999ApJ...527...54B from the MPA-JHU catalogue spect.index float RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main Sloan Display the online SDSS-DR17 data for this object meta.ref.url char