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Gravitational Lenses and VLBI Structures

Published online by Cambridge University Press:  04 August 2017

K. Subramanian ,
D. Narasimha  and
S. M. Chitre
K. Subramanian
Affiliation:
Tata Institute of Fundamental Research Homi Bhabha Road Bombay 400 005, India
D. Narasimha
Affiliation:
Tata Institute of Fundamental Research Homi Bhabha Road Bombay 400 005, India
S. M. Chitre
Affiliation:
Tata Institute of Fundamental Research Homi Bhabha Road Bombay 400 005, India

Extract

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The double quasar 00957 + 561 A,B along with bright radio arches and VLBI structures is modelled using a gravitational lens consisting of an elliptical galaxy and a cluster. The effective time-delay between components A and B comes out to be about a year and this enables one to distinguish between intensity fluctuations resulting from intrinsic quasar variations and minilensing by low mass stars.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 110: VLBI and Compact Radio Sources , 1984 , pp. 249 - 250
Copyright
Copyright © Reidel 1984 

References

Chang, K., and Refsdal, S.: 1979, Nature, 282, pp. 561.Google Scholar
Gott, R.J.: 1981, Ap. J., 243, 140.Google Scholar
Gott, R.J.: 1983, American Scientist, 71, pp. 150.Google Scholar
Porcas, R.W., Booth, R.S., Browne, I.W.A., Walsh, D., and Wilkinson, P.N.: 1981, Nature, 289, pp. 758.CrossRefGoogle Scholar
Walsh, D., Carswell, R.F., and Weymann, R.J.: 1979, Nature, 279, pp. 381.Google Scholar
Young, P., Gunn, J.E., Kristian, J., Oke, J.B., and Westphal, J.A.: 1981, Ap. J., 244, pp.736.Google Scholar