Multifrequency radio observations of the gravitational lens system 1938 + 666
نویسندگان
چکیده
منابع مشابه
A complete infrared Einstein ring in the gravitational lens system B 1938 + 666
We report the discovery, using NICMOS on the Hubble Space Telescope, of an arcsecond-diameter Einstein ring in the gravitational lens system B1938+666. The lensing galaxy is also detected, and is most likely an early-type. Modelling of the ring is presented and compared with the radio structure from MERLIN maps. We show that the Einstein ring is consistent with the gravitational lensing of an e...
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The four-image gravitational lens system MG 0414+0534 was observed with the GHz images reveal structure in the components which is consistent with that seen at other wavelengths. There was no detection of other extended emission, nor were there detections of the lensing galaxy or the " component x " seen in optical images. Detections of polarized emission show that the fractional polarized inte...
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The redshifts of the gravitational lens galaxies in MG 1131+0456 and B 1938+666 are 0.844 and 0.878 respectively. Both are early-type galaxies lying at the redshifts predicted by assuming that they are early-type galaxies with old stellar populations lying on the fundamental plane. We also find evidence for a foreground group of galaxies at z = 0.343 near MG 1131+0456. The source redshifts are ...
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We present hybrid maps of the A and B images of 0957+561 from each of four sessions of 6 cm VLBI observations that span the six-year interval 1987–1993. The inner-and outer-jets are clearly detected and confirm the structures reported previously. There is no evidence of change in the separation between the core and inner-jet components, so the prospect of measuring the time delay using differen...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1997
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/289.2.450