Morphologies and photometry in A2218 Virtual Observatory Resource

Authors
  1. Sanchez S.F.
  2. Cardiel N.
  3. Verheijen M.A.W.
  4. Pedraz S.
  5. Covone G.
  6. Published by
    CDS
Abstract

We present a study of the stellar populations and morphologies of galaxies in the core of the galaxy cluster Abell 2218. Integral field spectroscopy (IFS) observations were performed using PMAS in the PPAK mode covering a field of view of ~74x64arcsec^2^ centred on the core of the cluster, in order to obtain spectroscopy of an unbiased flux-limited sample of cluster galaxies. 43 objects were detected in the IFS data, 31 of them with enough signal-to-noise ratio to derive the redshift, all of them brighter than I<21.5mag. 28 are at the redshift of the cluster (17 with previously unknown redshift). Individual spectra of the cluster members were extracted and compared with single stellar population models to derive the luminosity-weighted ages and metallicities. In addition, deep Hubble Space Telescope (HST)/ACS F475W-, F555W-, F625W- and F850LP-band images centred on the cluster core were obtained from the HST archive (zlim~28mag). A detailed morphological analysis of all the galaxies within the field of view of these images down to zlim<22.5mag was performed classifying them as late-type, intermediate and early-type, on the basis of their Sersic indices. The literature was scanned to look for spectroscopically confirmed cluster members located within the field of view of the ACS image. The final sample of 59 galaxies comprises our reported sample of 28 galaxies in the core, and 31 additional galaxies in the outer regions. In addition, multiband broad-band photometry was extracted from the literature for all objects.

Keywords
  1. galaxy-clusters
  2. galaxies
  3. photometry
  4. galaxy-classification-systems
Bibliographic source Bibcode
2007MNRAS.376..125S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/376/125
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/376/125
Document Object Identifer DOI
doi:10.26093/cds/vizier.73760125

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/376/125
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/376/125
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/376/125
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/376/125/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/376/125/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/376/125/table2?

History

2007-12-03T17:52:42Z
Resource record created
2007-12-03T17:52:42Z
Created
2024-07-04T20:18:01Z
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