2D decomposition of CALIFA galaxies Virtual Observatory Resource

Authors
  1. Mendez-Abreu J.
  2. Ruiz-Lara T.
  3. Sanchez-Menguiano L.
  4. de Lorenzo-Caceres A.,Costantin L.
  5. Catalan-Torrecilla C.
  6. Florido E.
  7. Aguerri J.A.L.,Bland-Hawthorn J.
  8. Corsini E.M.
  9. Dettmar R.J.
  10. Galbany L.
  11. Garcia-Benito R.,Marino R.A.
  12. Marquez I.
  13. Ortega-Minakata R.A.
  14. Papaderos P.
  15. Sanchez S.F.,Sanchez-Blazquez P.
  16. Spekkens K.
  17. van de Ven G.
  18. Wild V.
  19. Ziegler B.
  20. Published by
    CDS
Abstract

We present a two-dimensional multi-component photometric decomposition of 404 galaxies from the Calar Alto Legacy Integral Field Area Data Release 3 (CALIFA-DR3). They represent all possible galaxies with no clear signs of interaction and not strongly inclined in the final CALIFA data release. Galaxies are modelled in the g, r, and i Sloan Digital Sky Survey (SDSS) images including, when appropriate, a nuclear point source, bulge, bar, and an exponential or broken disc component. We use a human-supervised approach to determine the optimal number of structures to be included in the fit. The dataset, including the photometric parameters of the CALIFA sample, is released together with statistical errors and a visual analysis of the quality of each fit. The analysis of the photometric components reveals a clear segregation of the structural composition of galaxies with stellar mass. At high masses (log(M*/M_{sun}_)>11), the galaxy population is dominated by galaxies modelled with a single Sersic or a bulge+disc with a bulge-to-total (B/T) luminosity ratio B/T>0.2. At intermediate masses (9.5<log(M*/M_{sun}_)<11), galaxies described with bulge+disc but B/T<0.2 are preponderant, whereas, at the low mass end (log(M*/M_{\sun}_)<9.5), the prevailing population is constituted by galaxies modelled with either pure discs or nuclear point sources+discs (i.e., no discernible bulge). The analyses of the extended multi-component radial profile result in a volume-corrected distribution of 62%, 28%, and 10% for the so-called Type I (pure exponential), Type II (down-bending), and Type III (up-bending) disc profiles, respectively. These fractions are in discordance with previous findings. We argue that the different methodologies used to detect the breaks are the main cause for these differences.

Keywords
  1. Galaxies
  2. Catalogs
  3. Optical astronomy
  4. Sloan photometry
  5. Galaxy classification systems
Bibliographic source Bibcode
2017A&A...598A..32M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/598/A32
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/598/A32
Document Object Identifer DOI
doi:10.26093/cds/vizier.35980032

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/598/A32
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/598/A32
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/598/A32
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/A+A/598/A32/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/598/A32/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/598/A32/table1?

History

2017-01-27T10:01:45Z
Resource record created
2017-01-27T10:01:45Z
Created
2017-07-26T07:31:51Z
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