Table · dataset · 2004
Photometry in elliptical galaxies
Listed in IVOA Registry (Virtual Observatory)
Morphological peculiarities, as defined from isophote asymmetries and number of detected shells, jets or similar features, have been estimated in a sample of 117 E classified galaxies, and qualified by an ad hoc S_2_ index.
Description
Objects with S_2_<1 are "normal" (Nop subsample), the other are "peculiar" (Pec subsample). The two subsamples are intercompared as regards the Fundamental Plane, Faber-Jackson relation, dust content from IRAS fluxes, occurence of Kinematically Distinct Cores and stellar populations.
The Nop subsample objects displays tight correlations between central velocity dispersion (or mass) and the population indices U-B, B-V, B-R, V-I, Mg_2_, Hbeta, <Fe>, Mg_b_. Part of the Pec objects deviate from these correlations, with blue "residuals" indicating a Younger Population mixed with the old one. This does not occur for other Pec objects.
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This subsample is thus classified in two families: i.e. the 'YP', or NGC 2865 family, and the 'NP' or NGC 3923 one. This distinction is quantified by a Mean Index of a Younger Population, or 'MIYP' with near zero values for the 'NP' objects and relatively large negative values for the 'YP'.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/423/833 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2004A&A...423..833M ui.adsabs.harvard.edu/abs/2004A%26A...423..833M ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/a%2Ba/423/833 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/423/833 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |