Rotation, Accretion, and Magnetic Activity in Pre-Main Sequence Stars

前主序星的旋转、吸积和磁活动

• 批准号: 52937630
• 负责人: Dr. Frederic Hessman, Ph.D.
• 金额: --
• 依托单位: Institut für Astrophysik und Geophysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/52937630?language=en
• 关键词: Rotation; Accretion; Magnetic; Activity; Pre

We propose to probe the rotational evolution of young stars, a process of fundamental interest but still not well-understood in detail. Our particular interest is in the connection between stellar angular momentum, magnetospheric accretion from circumstellar disks and dynamo-induced magnetic activity. Long-term monitoring of pre-main sequence stars is possible with robotic telescopes over timescales which have not yet been accessible. The use of automatic long-term observations and selected broad- and small-band filters will enable us to answer questions which previous short-term studies were unable to answer.

我们建议探测年轻恒星的旋转演化，这是一个基本的兴趣过程，但仍然没有很好地了解细节。我们特别感兴趣的是恒星角动量，磁层吸积从拱盘和发电机引起的磁活动之间的联系。使用机器人望远镜可以对主序星前的恒星进行长期的监测，时间尺度尚不清楚。使用自动长期观测和选定的宽频带和小频带滤波器将使我们能够回答以前的短期研究无法回答的问题。

项目成果

Disks, accretion and outflows of brown dwarfs

棕矮星的盘、吸积和流出

• DOI: 10.1002/asna.201211745
• 发表时间: 2013
• 期刊: Astronomische Nachrichten
• 影响因子: 0.9
• 作者: Joergens;Herczeg;Pascucci;Whelan;Alcala;Biazzo;Costigan;Gully-Santiago;Henning;Rigliaco;Rodriguez-Ledesma;Sicilia-Aguilar;Tottle
• 通讯作者: Tottle

The spectral type of CHS 7797 - an intriguing very low mass periodic variable in the Orion Nebula Cluster

CHS 7797 的光谱类型 - 猎户座星云团中一个有趣的极低质量周期变量

• DOI: 10.1051/0004-6361/201219748
• 发表时间: 2013
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: Rodriguez-Ledesma;Pintado;Boudreault;Hessman;Herbst
• 通讯作者: Herbst

An unusual very low-mass high-amplitude pre-main sequence periodic variable

一个不寻常的极低质量高振幅前主序周期变量

• DOI: 10.1051/0004-6361/201118649
• 发表时间: 2012
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: Rodriguez-Ledesma;Ibrahimov;Messina;Parihar;Hessman;Alves de Oliveira;Herbst
• 通讯作者: Herbst

Variability of CHXR 20: accretion, extinction, spots or a companion?

CHXR 20 的变异性：吸积、灭绝、斑点还是伴星？

• DOI: 10.1017/s1743921313008387
• 发表时间: 2014
• 期刊: Proceedings of the International Astronomical Union
• 作者: Kopytova;Joergens;Sicilia-Aguilar;Rodriguez-Ledesma
• 通讯作者: Rodriguez-Ledesma