Celestial Reference Frame at 24 and 43GHz. II

DOI

We have measured the submilliarcsecond structure of 274 extragalactic sources at 24 and 43 GHz in order to assess their astrometric suitability for use in a high-frequency celestial reference frame (CRF). Ten sessions of observations with the Very Long Baseline Array have been conducted over the course of ~5 years, with a total of 1339 images produced for the 274 sources. There are several quantities that can be used to characterize the impact of intrinsic source structure on astrometric observations including the source flux density, the flux density variability, the source structure index, the source compactness, and the compactness variability.

Cone search capability for table J/AJ/139/1713/table2 (Parameters of naturally weighted images at 24GHz)

Identifier
DOI http://doi.org/10.26093/cds/vizier.51391713
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/139/1713
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/139/1713
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/139/1713
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/139/1713
Provenance
Creator Charlot P.; Boboltz D.A.; Fey A.L.; Fomalont E.B.; Geldzahler B.J.,Gordon D.; Jacobs C.S.; Lanyi G.E.; Ma C.; Naudet C.J.; Romney J.D.,Sovers O.J.; Zhang L.D.
Publisher CDS
Publication Year 2012
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; High Energy Astrophysics; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy