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CLASS B0445+123: a new two-image gravitational lens system | | M.K. Argo
; N.J. Jackson
; I.W.A. Browne
; T. York
; J.P. McKean
; A.D. Biggs
; R.D. Blandford
; A.G. de Bruyn
; K.H. Chae
; C.D. Fassnacht
; L.V.E. Koopmans
; D.R. Marlow
; S.T. Myers
; M. Norbury
; T.J. Pearson
; P.M. Phillips
; A.C.S. Readhead
; D. Rusin
; P.N. Wilkinson
; | | Date: |
10 Oct 2002 | | Journal: | Mon.Not.Roy.Astron.Soc. 338 (2003) 957 | | Subject: | astro-ph | | Affiliation: | 1,2), R.D. Blandford , A.G. de Bruyn (4,5), K.H. Chae , C.D. Fassnacht , L.V.E. Koopmans , D.R. Marlow , S.T. Myers , M. Norbury , T.J. Pearson , P.M. Phillips , A.C.S. Readhead , D. Rusin (8,9), P.N. Wilkinson ( University of Manchester JBO, JIVE, | | Abstract: | A new two-image gravitational lens system has been discovered as a result of the Cosmic Lens All-Sky Survey (CLASS). Radio observations with the VLA, MERLIN and the VLBA at increasingly higher resolutions all show two components with a flux density ratio of ~7:1 and a separation of 1.34". Both components are compact and have the same spectral index. Followup observations made with the VLA at 8.4 GHz show evidence of a feature to the south-east of the brighter component and a corresponding extension of the weaker component to the north-west. Optical observations with the WHT show ~1.7" extended emission aligned in approximately the same direction as the separation between the radio components with an R-band magnitude of 21.8 +/- 0.4. | | Source: | arXiv, astro-ph/0210234 | | Services: | Forum | Review | PDF | Favorites | |
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