Space around the Sun is less dense, that is the reason why the gravity around it is less. High temperature thin out space. At the other end of the spectrum, extreme cold puncture a hole in space, everything in the vicinity get drawn in and there is fusion. So a hot and cold spectrum will also set up a gravity gradient.
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| Solar Sail |
The cold body has denser space around it, The solar sail absorbs solar radiation and heats up, space thins out around it. There is a net gravitation force along the trust holding the cold body towards the cold body. Both the sail and the cold body are attached to the same structure.
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| Plasma Bell |
Another variation shown above is in a dense bell structure. The hot body might be heated by plasma and the cold body, part of heat distribution/cooling system. The dense bell "contains" denser space between it and the cold body. A high gravity point forms in this space and should be above the C.G. of the superstructure of which the bell is part. It may be made of Lead, Pb alloy or other dense materials.
