Isolated galaxy triplets in the local universe

DOI

Understanding the dynamics of galaxy triplet systems is one of the significant ways of obtaining insight into the dynamics of large galaxy clusters. Towards that aim, we present a detailed study of all isolated triplet systems (total of 315) taken from the 'SDSS-based catalogue of Isolated Triplets' (SIT). In addition, we compared our results with those obtained for a sample of triplets from the Local Supercluster, SDSS-triplets, Tully's catalogue, Wide (W) and Compact (K)-triplets. In addition, we performed the correlation between the dynamical parameters and the large-scale structure (LSS). Interestingly, we found that there is no correlation between both the mean projected separation for the triplet systems and the LSS and its dynamical parameters. Furthermore, we found that only 3 per cent of these systems can be considered as compact since the mean harmonic separation (r_h_) is more than 0.4Mpc for 97 per cent of the population. Thus, we may conclude that mergers might not have played a dominant role in their evolution.

Cone search capability for table J/MNRAS/482/2627/tablea1 (Computed basic parameters of the 315 studied triplet systems in the SIT catalogue)

Identifier
DOI http://doi.org/10.26093/cds/vizier.74822627
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/482/2627
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/482/2627
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/482/2627
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/482/2627
Provenance
Creator Tawfeek A.A.; Ali G.B.; Takey A.; Awad Z.; Hayman Z.M.
Publisher CDS
Publication Year 2022
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics