Globular clusters as gravitational lenses

We argue that globular clusters (GCs) are good candidates for gravitational lenses in explaining quasar-galaxy associations. The catalog of associations (Bukhmastova, 2001, Cat. ) compiled from the LEDA catalog of galaxies (Paturel, 1997A&AS..124..109P) and from the catalog of quasars (Veron-Cetty and Vero, 1998, see Cat. ) is used. Based on the new catalog, we show that one might expect an increased number of GCs around irregular galaxies of types 9 and 10 from the hypothesis that distant compact sources are gravitationally lensed by GCs in the halos of foreground galaxies. The King model is used to determine the central surface densities of 135 GCs in the Milky Way. The distribution of GCs in central surface density was found to be lognormal.

Cone search capability for table J/PAZh/29/253/table1 (The list of Milky Way globular clusters as possible mesolens candidates)

Cone search capability for table J/PAZh/29/253/table3 (Irregular galaxies of types 9 and 10 in quasar-galaxy associations)

Cone search capability for table J/PAZh/29/253/objects1 (Globular clusters positions)

Cone search capability for table J/PAZh/29/253/objects3 (Galaxies positions)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/PAZh/29/253
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/29/253
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PAZh/29/253
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/PAZh/29/253
Provenance
Creator Bukhmastova Yu.L.
Publisher CDS
Publication Year 2004
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; Natural Sciences; Physics; Stellar Astronomy