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Rotating gravitational lenses: a kinematic approach
Citation
Walters, SJ and Forbes, LK, Rotating gravitational lenses: a kinematic approach, Monthly Notices of the Royal Astronomical Society, 444, (3) pp. 2470-2486. ISSN 0035-8711 (2014) [Refereed Article]
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Copyright Statement
Copyright 2014 The Authors
DOI: doi:10.1093/mnras/stu1620
Abstract
This paper uses the Kerr geodesic equations for massless particles to derive an acceleration vector in both Boyer–Lindquist and Cartesian coordinates. As a special case, the Schwarzschild acceleration due to a non-rotating mass has a particularly simple and elegant form in Cartesian coordinates. Using forward integration, these equations are used to plot the caustic pattern due to a system consisting of a rotating point mass with a smaller non-rotating planet. Additionally, first- and second-order approximations to the paths are identified, which allows for fast approximations of paths, deflection angles and traveltime delays.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | gravitational lensing, mathematical models, planet detection, acceleration of particles |
| Research Division: | Physical Sciences |
| Research Group: | Astronomical sciences |
| Research Field: | Astronomical sciences not elsewhere classified |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the physical sciences |
| UTAS Author: | Walters, SJ (Mr Stephen Walters) |
| UTAS Author: | Forbes, LK (Professor Larry Forbes) |
| ID Code: | 97607 |
| Year Published: | 2014 |
| Web of Science® Times Cited: | 2 |
| Deposited By: | Mathematics and Physics |
| Deposited On: | 2015-01-02 |
| Last Modified: | 2017-11-01 |
| Downloads: | 300 View Download Statistics |
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