On gravitomagnetic time-delay by extended lenses
Abstract
Gravitational lensing by rotating extended deflectors is discussed. The lens is modelled as a singular isothermal sphere. Because of spin, corrections on image positions, caustics and critical curves can be significant. Gravitomagnetic time-delays of ~0.2 d between different images of background sources can occur.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- March 2005
- DOI:
- 10.1111/j.1365-2966.2005.08709.x
- arXiv:
- arXiv:astro-ph/0412108
- Bibcode:
- 2005MNRAS.357.1205S
- Keywords:
-
- gravitation;
- gravitational lensing;
- relativity;
- astrometry;
- Astrophysics
- E-Print:
- 7 pages