J/MNRAS/497/466ivo://CDS.VizieR/J/MNRAS/497/466doi:10.26093/cds/vizier/bg-fh-ejCDSSeth R.Raychaudhury S.2026-08-03T07:30:02Z2023-10-26T15:04:44ZCDS support team

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

cds-question@unistra.frgalaxy-groupsgalaxy-clustersastrometryradial-velocityvisible-astronomyWe take a close look at the galaxies in the Coma Supercluster and assess the role of the environment (in the form of cluster, group, and supercluster filament) in their evolution, in particular, examining the role of groups. We characterize the groups according to intrinsic properties such as richness and halo mass, as well as their position in the supercluster and proximity to the two rich clusters, Abell 1656 (Coma) and Abell 1367. We devise a new way of characterizing the local environment using a kernel density estimator. We find that apart from the dominant effects of the galaxy mass, the effect of the environment on galaxies is a complex combination of the overdensities on various scales, which is characterized in terms of membership of groups, and also of the position of the galaxy on filaments and their proximity to the infall regions of clusters. Whether the gas can be turned into stars depends upon the level of pre-processing, which plays a role in how star formation is enhanced in a given environment. Our results are consistent with gas accreted in the cold mode from the filaments, being made available to enhance star formation. Finally, we show that the Abell 1367 end of the supercluster is in the process of assembly at present, leading to heightened star formation activity, in contrast with the Coma-end of the filament system.2020MNRAS.497..466Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/497/466CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/497/466https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/497/466http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/497/466https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/497/466https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/497/466http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/497/466GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/497/466/table2 (Galaxy groups within the Coma Supercluster (excluding Coma and Abell 1367) from the Yang et al. (2007ApJ...671..153Y) catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/497/466/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/497/466/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/497/466/table2?GETtext/xml+votable180.050000true181.1083320.461940.0055555555555555566/5206 5376-5378 5414 8839 8841 8843 8859 8865 8870 8877 8883 8886 8889-8891 10257 10262 10270-10271 10293 10304 10375 10382 10393 10396 10434-10435 10438 10440 10445 10454 10752 10760 10763 10770 26495 26590 26615 26617 26621 27860 27868 27893 27900 27998 28033 28064 28067 28075 28082 28090 28143 28149-28150 28154 28253 28269 28278-28279 28295 28365-28366 28368 28371 28373 28377 28385 28403 28414-28415 28426-28427 28429 28435-28436 28443 28464 28471 28474 28476 28482 28492 28494 28517 28523 28526 28538-28539 28545 28548 28555 28564 28586 28606 28611 28615-28616https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/497/466?format=asciiOpticaldefaultJ/MNRAS/497/466/table2Galaxy groups within the Coma Supercluster (excluding Coma and Abell 1367) from the Yang et al. (2007ApJ...671..153Y) cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[14/9731] Group identifiermeta.id;meta.mainintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainRVRadial velocitykm/sphys.veloc;pos.heliocentricintNNumber of galaxies in groupmeta.numberintL19.5? Characteristic luminosity of the group (1)solLumphys.luminosityfloatnullableM*? Stellar masssolMassphys.massfloatnullableMhalo? Halo masssolMassphys.massfloatnullable