Wilkinson, P. N. and Henstock, D. R. and Browne, I. W. A. and Readhead, A. C. S. and Taylor, G. B. and Vermeulen, R. C. and Pearson, T. J. and Xu, W. (1996) A Search for Gravitational Milli–Lenses. In: Examining the Big Bang and the Diffuse Background Radiations. IAU Symposium Proceedings Series. No.168. Kluwer , Dordrecht, pp. 95-98. ISBN 9780792338147. https://resolver.caltech.edu/CaltechAUTHORS:20181210-135714017
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Abstract
We have searched for gravitational milli–lens systems by examining VLBI maps of ~ 300 flat–spectrum radio sources. So far we have followed up 7 candidates, with separations in the range 2–20 mas. None have been confirmed as lenses but several of them can not yet be definitively ruled out. If there are no milli-lenses in this sample then uniformly–distributed black holes of 10^6 to 10^8 M_⊙ cannot contribute more than ~ 1% of the closure density.
| Item Type: | Book Section | ||||||||
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| Additional Information: | © 1996 IAU. | ||||||||
| Series Name: | IAU Symposium Proceedings Series | ||||||||
| Issue or Number: | 168 | ||||||||
| DOI: | 10.1017/S0074180900109970 | ||||||||
| Record Number: | CaltechAUTHORS:20181210-135714017 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20181210-135714017 | ||||||||
| Official Citation: | Wilkinson, P., Henstock, D., Browne, I., Readhead, A., Taylor, G., Vermeulen, R., . . . Xu, W. (1996). A Search for Gravitational Milli–Lenses. Symposium - International Astronomical Union, 168, 95-98. doi:10.1017/S0074180900109970 | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 91650 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | Tony Diaz | ||||||||
| Deposited On: | 10 Dec 2018 22:10 | ||||||||
| Last Modified: | 16 Nov 2021 03:43 |
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