欢迎归来,造父变星北极星
天体物理学
2009-11-13 v1
摘要
大约100年来,北极星4天脉动周期的振幅一直在减小。我们展示了基于地面和两个卫星任务连续4.5年监测的新结果,表明其振幅显著增加。
引用
@article{arxiv.0810.4371,
title = {Welcome back, Polaris the Cepheid},
author = {H. Bruntt and A. J. Penny and D. Stello and N. R. Evans and J. A. Eaton},
journal= {arXiv preprint arXiv:0810.4371},
year = {2009}
}
备注
5 pages; to appear in the proceedings of the "Cool Stars 15" workshop held at St Andrews, UK