PKS 1830−211: A Possible Compound Gravitational Lens
نویسندگان
چکیده
منابع مشابه
PKS 1830−211: A Possible Compound Gravitational Lens
Measurements of the properties of gravitational lenses have the power to tell us what sort of universe we live in. The brightest known radio Einstein ring/gravitational lens PKS 1830−211 (Jauncey et al. 1991), whilst obscured by our Galaxy at optical wavelengths, has recently been shown to contain absorption at the millimetre waveband at a redshift of 0.89 (Wiklind & Combes 1996a). We report th...
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Changes in the measured image separation of the gravitational lens system, PKS 1830-211. ABSTRACT We present eight epochs of 43 GHz, dual-polarisation VLBA observations of the gravitational lens system PKS 1830-211, made over fourteen weeks. A bright, compact " core " and a faint extended " jet " are clearly seen in maps of both lensed images at all eight epochs. The relative separation of the ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1996
ISSN: 0004-637X
DOI: 10.1086/310353