Table · dataset · 2015
A catalog of globular cluster systems
Listed in IVOA Registry (Virtual Observatory)
We present a catalog of 422 galaxies with published measurements of their globular cluster (GC) populations.
Description
Of these, 248 are E galaxies, 93 are S0 galaxies, and 81 are spirals or irregulars. Among various correlations of the total number of GCs with other global galaxy properties, we find that N_GC_ correlates well though nonlinearly with the dynamical mass of the galaxy bulge M_dyn_=4{sigma}_e_^2^R_e_/G, where {sigma}_e_ is the central velocity dispersion and R_e_ the effective radius of the galaxy light profile.
We also present updated versions of the GC specific frequency S_N_ and specific mass S_M_ versus host galaxy luminosity and baryonic mass. These graphs exhibit the previously known U-shape: highest S_N_ or S_M_ values occur for either dwarfs or supergiants, but in the midrange of galaxy size (10^9^-10^10^L_{sun}_) the GC numbers fall along a well-defined baseline value of S_N_=~1 or S_M_=0.1, similar among all galaxy types.
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Along with other recent discussions, we suggest that this trend may represent the effects of feedback, which systematically inhibited early star formation at either very low or very high galaxy mass, but which had its minimum effect for intermediate masses. Our results strongly reinforce recent proposals that GC formation efficiency appears to be most nearly proportional to the galaxy halo mass M_halo_. The mean "absolute" efficiency ratio for GC formation that we derive from the catalog data is M_GCS_/M_halo_=6x10^-5^.
We suggest that the galaxy-to-galaxy scatter around this mean value may arise in part because of differences in the relative timing of GC formation versus field-star formation. Finally, we find that an excellent empirical predictor of total GC population for galaxies of all luminosities is N_GC_~(R_e_{sigma}_e_)^1.3^, a result consistent with fundamental plane scaling relations.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/772/82 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2013ApJ...772...82H ui.adsabs.harvard.edu/abs/2013ApJ...772...82H ↗
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/apj/772/82 ↗
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/apj/772/82 | 14 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 |