通过观察磁性白矮星约束引力理论
天体物理学
2007-05-23 v1
摘要
在假设存在特定的扭转与电磁相互作用的非最小耦合后，引力场中会导致时空呈现双折射现象，使得来自扩展天体源的光线出现偏振衰减。我们利用磁性白矮星 RE J0317-853 的偏振数据，首次对该效应的关键耦合常数进行约束，给出 k^2 <22 m^2。
引用
@article{arxiv.astro-ph/0411688,
title = {Constraining Gravitational Theories by Observing Magnetic White Dwarfs},
author = {Oliver Preuss and Stefan Jordan and Mark P. Haugan and Sami K. Solanki},
journal= {arXiv preprint arXiv:astro-ph/0411688},
year = {2007}
}
备注
4 pages, 1 Figure, to appear in the proceedings of the 14th European Workshop on White Dwarfs, eds. D. Koester and S. Moehler, ASP Conf. Series