On the Effect of the Cosmological Expansion on the Gravitational Lensing by a Point Mass
We analyse the effect of the cosmological expansion on the deflection of light caused by a point mass, adopting the McVittie metric as the geometrical description of a point-like lens embedded in an expanding universe. In the case of a generic, non-constant Hubble parameter, H, we derive and approxi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-10-01
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| Series: | Universe |
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| Online Access: | http://www.mdpi.com/2218-1997/2/4/25 |