Multifrequency radio observations of the gravitational lens system 1938+666

被引：43

作者：

King, LJ

Browne, IWA

Muxlow, TWB

Narasimha, D

Patnaik, AR

Porcas, RW

Wilkinson, PN

机构：

[1] UNIV MANCHESTER,NUFFIELD RADIO ASTRON LABS,JODRELL BANK,MACCLESFIELD SK11 9DL,CHESHIRE,ENGLAND

[2] TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA

[3] MAX PLANCK INST RADIOASTRON,D-53121 BONN,GERMANY

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1997年 / 289卷 / 02期

关键词：

gravitation; galaxies; individual; 1938; 666; gravitational lensing; radio continuum;

D O I：

10.1093/mnras/289.2.450

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of multifrequency VLA, MERLIN and VLBI radio observations of the radio source 1938 + 666, and show that its properties are consistent with gravitational lensing. By matching radio spectra and polarization properties, we identify which components are likely to be gravitational images of the same part of the source. Using a simple lens model, we show that the image configuration is consistent with lensing by a galaxy, represented by a potential with a small ellipticity.

引用

页码：450 / 456

页数：7

共 11 条

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AKUJOR CE, 1995, ASTRON ASTROPHYS SUP, V112, P235

[2] GRAVITATIONAL IMAGING BY ISOLATED ELLIPTIC POTENTIAL WELLS .1. CROSS-SECTIONS [J].