Class B0631+519: Last of the Class Lenses Metadata

Title

• Main Title Class B0631+519: Last of the Class Lenses

Creator

• Author: York, Tom
  Creator Type: Personal
• Author: Jackson, N.
  Creator Type: Personal
• Author: Browne, I. W. A.
  Creator Type: Personal
• Author: Koopmans, L. V. E.
  Creator Type: Personal
• Author: McKean, J. P.
  Creator Type: Personal
• Author: Norbury, M. A.
  Creator Type: Personal
• Author: Biggs, A. D.
  Creator Type: Personal
• Author: Blandford, R. D.
  Creator Type: Personal
• Author: de Bruyn, A. G.
  Creator Type: Personal
• Author: Fassnacht, C. D.
  Creator Type: Personal
• Author: Myers, S. T.
  Creator Type: Personal
• Author: Pearson, T. J.
  Creator Type: Personal
• Author: Phillips, P. M.
  Creator Type: Personal
• Author: Readhead, A. C. S.
  Creator Type: Personal
• Author: Rusin, D.
  Creator Type: Personal
• Author: Wilkinson, P. N.
  Creator Type: Personal
• Author: /Jodrell Bank /Kapteyn Astron. Inst., Groningen /UC, Davis /JIVE, Dwingeloo /KIPAC, Menlo Park /NFRA, Dwingeloo /NRAO, Socorro /Caltech /Pennsylvania U.
  Creator Type: Personal

Contributor

• Sponsor: United States. Department of Energy.
  Contributor Type: Organization

Publisher

• Name: Stanford Linear Accelerator Center
  Place of Publication: [Menlo Park, California]
  Additional Info: SLAC

Date

• Creation: 2005-05-31

Language

• English

Description

• Content Description: We report the discovery of the new gravitational lens system CLASS B0631+519. Imaging with the VLA, MERLIN and the VLBA reveals a doubly-imaged flat-spectrum radio core, a doubly-imaged steep-spectrum radio lobe and possible quadruply-imaged emission from a second lobe. The maximum separation between the lensed images is 1.16 arcsec. High resolution mapping with the VLBA at 5 GHz resolves the most magnified image of the radio core into a number of sub-components spread across approximately 20 mas. No emission from the lensing galaxy or an odd image is detected down to 0.31 mJy (5{sigma}) at 8.4 GHz. Optical and near-infrared imaging with the ACS and NICMOS cameras on the HST show that there are two galaxies along the line of sight to the lensed source, as previously discovered by optical spectroscopy. We find that the foreground galaxy at z=0.0896 is a small irregular, and that the other, at z=0.6196 is a massive elliptical which appears to contribute the majority of the lensing effect. The host galaxy of the lensed source is detected in the HST near-infrared imaging as a set of arcs, which form a nearly complete Einstein ring. Mass modeling using non-parametric techniques can reproduce the near-infrared observations and indicates that the small irregular galaxy has a (localized) effect on the flux density distribution in the Einstein ring at the 5-10% level.
• Physical Description: 15 pages

Subject

• Keyword: Cameras
• Keyword: Spectroscopy Astrophysics,Astro
• Keyword: Flux Density
• Keyword: Galaxies
• Keyword: Simulation
• STI Subject Categories: 71 Classical And Quantum Mechanics, General Physics
• Keyword: Astrophysics,Astro
• Keyword: Distribution
• Keyword: Resolution
• Keyword: Lenses

Source

• Journal Name: Mon.Not.Roy.Astron.Soc.361:259-271,2005

Collection

• Name: Office of Scientific & Technical Information Technical Reports
  Code: OSTI

Institution

• Name: UNT Libraries Government Documents Department
  Code: UNTGD

Resource Type

• Article

Format

• Text

Identifier

• Report No.: SLAC-PUB-11256
• Grant Number: AC02-76SF00515
• Office of Scientific & Technical Information Report Number: 890857
• Archival Resource Key: ark:/67531/metadc873703

Note

• Display Note: http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-11256.html