Properties of the Hydra cluster galaxies Virtual Observatory Resource

Authors
  1. Lima-Dias C.
  2. Monachesi A.
  3. Torres-Flores S.
  4. Cortesi A.,Hernandez-Lang D.
  5. Barbosa C.E.
  6. Mendes de Oliveira C.
  7. Olave-Rojas D.,Pallero D.
  8. Sampedro L.
  9. Molino A.
  10. Herpich F.R.
  11. Jaffe Y.L.
  12. Amorin R.,Chies-Santos A.L.
  13. Dimauro P.
  14. Telles E.
  15. Lopes P.A.A.
  16. Alvarez-Candal A.,Ferrari F.
  17. Kanaan A.
  18. Ribeiro T.
  19. Schoenell W.
  20. Published by
    CDS
Abstract

The nearby Hydra cluster (~50Mpc) is an ideal laboratory to understand, in detail, the influence of the environment on the morphology and quenching of galaxies in dense environments. We study the Hydra cluster galaxies in the inner regions (1R_200_) of the cluster using data from the Southern Photometric Local Universe Survey, which uses 12 narrow and broad-band filters in the visible region of the spectrum. We analyse structural (Sersic index, effective radius) and physical (colours, stellar masses, and star formation rates) properties. Based on this analysis, we find that ~88 per cent of the Hydra cluster galaxies are quenched. Using the Dressler-Schectman test approach, we also find that the cluster shows possible substructures. Our analysis of the phase-space diagram together with density-based spatial clustering algorithm indicates that Hydra shows an additional substructure that appears to be in front of the cluster centre, which is still falling into it. Our results, thus, suggest that the Hydra cluster might not be relaxed. We analyse the median Sersic index as a function of wavelength and find that for red [(u-r)>=2.3] and early-type galaxies it displays a slight increase towards redder filters (13 and 18 per cent, for red and early type, respectively), whereas for blue + green [(u-r)<2.3] galaxies it remains constant. Late-type galaxies show a small decrease of the median Sersic index towards redder filters. Also, the Sersic index of galaxies, and thus their structural properties, do not significantly vary as a function of clustercentric distance and density within the cluster; and this is the case regardless of the filter.

Keywords
  1. galaxy-clusters
  2. galaxies
  3. star-forming-regions
  4. infrared-photometry
  5. visible-astronomy
  6. broad-band-photometry
  7. narrow-band-photometry
Bibliographic source Bibcode
2021MNRAS.500.1323L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/500/1323
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/500/1323
Document Object Identifer DOI
doi:10.26093/cds/vizier.75001323

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/500/1323
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/500/1323
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/500/1323
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/1323/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/1323/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/1323/tablea1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/1323/tablea2?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/1323/tablea2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/1323/tablea2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/1323/tablea3?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/1323/tablea3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/1323/tablea3?

History

2023-11-09T09:38:57Z
Resource record created
2023-11-09T09:38:57Z
Created
2024-08-21T20:16:43Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr