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astro-ph2005★ 24 cited
VLBI phase-reference observations of the gravitational lens JVAS B0218+357
Rupal Mittal, Richard Porcas, Olaf Wucknitz +2
We present the results of phase-referenced VLBA+Effelsberg observations at five frequencies of the double-image gravitational lens JVAS B0218+357, made to establish the precise reg…
astro-ph2005★ 42 cited
Metal Abundances in a Damped Lyman-alpha System Along Two Lines of Sight at z=0.93
S. Lopez, D. Reimers, M. D. Gregg +3
We study metal abundances in the z=0.9313 damped Lya system observed in the two lines-of-sight, A and B, toward the gravitationally-lensed double QSO HE0512-3329. Spatially resolve…