Fermion stars as gravitational lenses
arXiv:astro-ph/9912381 · doi:10.1086/309081
Abstract
We study in detail gravitational lensing caused by a supermassive fermion star and compare it with lensing by a black hole of the same mass. It is argued that lensing effects, being very distinct, may shed some light on the yet unexplained nature of the compact dark massive object at the Galactic center.
revised, 17 pages, 13 figures included, to appear in Astrophys. J
References in corpus (7)
- High Proper Motion Stars in the Vicinity of Sgr A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy
- Dark matter concentration in the galactic center
- Sgr A^*: A supermassive black hole or a spatially extended object?
- Stars and Halos of Degenerate Relativistic Heavy-Neutrino and Neutralino Matter
- General-Relativistic Thomas-Fermi model
- Gravitational phase transition of heavy neutrino matter
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Cited by in corpus (6)
- On the exact gravitational lens equation in spherically symmetric and static spacetimes
- Can strong gravitational lensing distinguish naked singularities from black holes?
- The motion of stars near the Galactic center: A comparison of the black hole and fermion ball scenarios
- Dark matter concentrations in galactic nuclei according to polytropic models
- Strong lensing by fermionic dark matter in galaxies
- Monitoring lensed starlight emitted close to the Galactic Center