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          Institute: MPI für Radioastronomie     Collection: Publikationen des MPI für Radioastronomie     Display Documents

ID: 12274.0, MPI für Radioastronomie / Publikationen des MPI für Radioastronomie
PMN J0134-0931 : A gravitationally lensed quasar with unusual radio morphology
Authors:Winn, J. N.; Lovell, J. E. J.; Chen, H. W.; Fletcher, A. B.; Hewitt, J. N.; Patnaik, A. R.; Schechter, P. L.
Date of Publication (YYYY-MM-DD):2002-01-01
Title of Journal:Astrophysical Journal
Journal Abbrev.:Astrophys. J.
Issue / Number:1
Start Page:143
End Page:152
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The radio-loud quasar J0134-0931 was discovered to have an unusual morphology during our search for gravitational lenses. In Very Large Array and MERLIN images, there are five compact components with a maximum separation of All of these components have the same spectral index from 5 to 43 GHz. GHz. In a Very Long Baseline Array image at 1.7 GHz, a curved arc of extended emission joins two of the components in a manner suggestive of gravitational lensing. At least two of the radio components have near-infrared counterparts. We argue that this evidence implies that J0134-0931 is a gravitational lens, although we have not been able to devise a plausible model for the foreground gravitational potential. Like several other radio- loud lenses, the background source has an extraordinarily red optical counterpart.
Free Keywords:gravitational lensing; quasars : individual (PMN J0134-0931); radio continuum : galaxies
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Radioastronomie
External Affiliations:MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA; MIT, Dept Phys, Cambridge, MA 02139 USA; Natl Opt Astron Observ, Cerro Tololo Inter Amer Observ, La Serena, Chile; CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia; Carnegie Inst Washington Observ, Pasadena, CA 91101 USA; MIT, Haystack Observ, Westford, MA 01886 USA; Max Planck Inst Radioastron, D-53121 Bonn, Germany
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