2003MNRAS.338..957A

Query : 2003MNRAS.338..957A

2003MNRAS.338..957A - Mon. Not. R. Astron. Soc., 338, 957-961 (2003/February-1)

CLASS B0445+123: a new two-image gravitational lens system.

ARGO M.K., JACKSON N.J., BROWNE I.W.A., YORK T., McKEAN J.P., BIGGS A.D., BLANDFORD R.D., DE BRUYN A.G., CHAE K.-H., FASSNACHT C.D., KOOPMANS L.V.E., MYERS S.T., NORBURY M., PEARSON T.J., PHILLIPS P.M., READHEAD A.C.S., RUSIN D. and WILKINSON P.N.

Abstract (from CDS):

A new two-image gravitational lens system has been discovered as a result of the Cosmic Lens All-Sky Survey. Radio observations with the Very Large Array (VLA), the MultiElement Radio Linked Interferometer Network and the Very Long Baseline Array at increasingly higher resolutions all show two components with a flux density ratio of ∼7 : 1 and a separation of 1.34 arcsec. Both components are compact and have the same spectral index. Follow-up 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 William Herschel Telescope show ∼1.7-arcsec 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.

Abstract Copyright: RAS

Journal keyword(s): gravitational lensing - galaxies: individual: B0445+123

Nomenclature: Table 2, Fig.2: [AJB2003] B0445+123 A (Nos A-B), <%M [AJB2003] B0445+123 A'> (Nos A'-B').

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 CLASS B0445+123 rG 04 48 +12.4           ~ 24 0
2 [AJB2003] B0445+123 A LeI 04 48 21.990 +12 27 55.41           ~ 2 0
3 [AJB2003] B0445+123 B LeI 04 48 22.070 +12 27 56.02           ~ 2 0
4 [VV2006] J083105.4+522520 QSO 08 31 05.413 +52 25 20.60     19.60     ~ 14 3
5 [AJB2003] B0445+123 A' LeI ~ ~           ~ 1 0
6 [AJB2003] B0445+123 B' LeI ~ ~           ~ 1 0

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