Gaia GraL. VI. Quadruply imaged lensed QSOs

DOI

Combining the exquisite angular resolution of Gaia with optical light curves and WISE photometry, the Gaia Gravitational Lenses group (GraL) uses machine-learning techniques to identify candidate strongly lensed quasars, and has confirmed over two dozen new strongly lensed quasars from the Gaia Data Release 2. This paper reports on the 12 quadruply imaged quasars identified by this effort to date, which is a ~20% increase in the total number of confirmed quadruply imaged quasars. We discuss the candidate selection, spectroscopic follow-up, and lens modeling. We also report our spectroscopic failures as an aid for future investigations.

Cone search capability for table J/ApJ/921/42/table6 (Invalidated GraL lens candidates (i.e., asterisms))

Identifier
DOI http://doi.org/10.26093/cds/vizier.19210042
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/921/42
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/921/42
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/921/42
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/921/42
Provenance
Creator Stern D.; Djorgovski S.G.; Krone-Martins A.; Sluse D.; Delchambre L.,Ducourant C.; Teixeira R.; Surdej J.; Boehm C.; den Brok J.; Dobie D.,Drake A.; Galluccio L.; Graham M.J.; Jalan P.; Kluter J.,Le Campion J.-F.; Mahabal A.; Mignard F.; Murphy T.; Nierenberg A.,Scarano S. Jr,Simon J.,Slezak E.,Spindola-Duarte C.,Wambsganss J.
Publisher CDS
Publication Year 2023
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; High Energy Astrophysics; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy