利用疏散星团NGC6819中的红巨星约束恒星内部的角动量输运过程
太阳与恒星天体物理
2015-10-21 v1
摘要
星团是验证和改进恒星演化理论的优秀试验台。最近利用开普勒(Kepler)望远镜在疏散星团NGC6819的G-K型巨星中探测到太阳型振荡,这为我们提供了关于红巨星分支上恒星质量和半径的独立约束,以及对星团距离和年龄的约束。我们针对NGC6819给出了考虑自转诱导混合的演化模型,以及我们恒星模型的理论低l频率。
引用
@article{arxiv.1502.02918,
title = {Constraining angular momentum transport processes in stellar interiors with red-giant stars in the open cluster NGC6819},
author = {N. Lagarde and A. Miglio and P. Eggenberger and J. Montalbàn and D. Bossini},
journal= {arXiv preprint arXiv:1502.02918},
year = {2015}
}
备注
Submitted to EPJ Web of Conferences, to appear in the Proceedings of the 3rd CoRoT Symposium, Kepler KASC7 joint meeting; 2 pages, 1 figure