FIRST-Optical-VLA survey for lensed radio lobes

DOI

We present results from a survey for gravitationally lensed radio lobes. Lensed lobes are a potentially richer source of information about galaxy mass distributions than lensed point sources, which have been the exclusive focus of other recent surveys. Our approach is to identify radio lobes in the Faint Images of the Radio Sky at Twenty cm (FIRST, Cat. ) catalog and then search optical catalogs for coincident foreground galaxies, which are candidate lensing galaxies. We then obtain higher resolution images of these targets at both optical and radio wavelengths and obtain optical spectra for the most promising candidates. We present maps of several radio lobes that are nearly coincident with galaxies. We have not found any new and unambiguous cases of gravitational lensing. One radio lobe in particular, FOV J0743+1553, has two hot spots that could be multiple images produced by a z=0.19 spiral galaxy, but the lensing interpretation is problematic.

Cone search capability for table J/AJ/130/1977/table1 (VLA observations of 92 targets)

Cone search capability for table J/AJ/130/1977/table2 (Optical data on 32 targets)

Identifier
DOI http://doi.org/10.26093/cds/vizier.51301977
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/130/1977
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/130/1977
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/130/1977
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/130/1977
Provenance
Creator Haarsma D.B.; Winn J.N.; Falco E.E.; Kochanek C.S.; Ammar P.; Boersma C.,Fogwell S.; Muxlow T.W.B.; Mcleod B.A.; Lehar J.
Publisher CDS
Publication Year 2020
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 Astrophysical Processes; Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics