Table · dataset · 2002
Morphology of Quasars
Listed in IVOA Registry (Virtual Observatory)
The optical morphology of bright extragalactic objects listed by Green et al. (1986ApJS...61..305G) is determined on Palomar Observatory Sky Survey prints.
Description
Morphological types are assigned according to whether objects appear resolved or unresolved. These are plotted in the Hubble Diagram.
When combined with previous results from the Medium-Bright Quasar Survey (MBQS), objects of redshift z are found to be unresolved on 1.2m Schmidt telescopes at apparent magnitudes brighter than B=21-3/4z over a large magnitude range 12.5<B<18.5. A luminosity cutoff for unresolved objects in this range is found to be M_B=-24, (H0=50), in agreement with an earlier estimate. Relevance to the search for large, bright, host galaxies, and for "naked quasar" candidates, is noted.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/111/645 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 1996AJ....111..645F ui.adsabs.harvard.edu/abs/1996AJ....111..645F ↗
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/aj/111/645 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 71%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/111/645 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| 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 |