Young stellar binaries: The structure of circumbinary accretion disks

年轻的恒星双星：环双星吸积盘的结构

• 批准号: 210359296
• 负责人: Professor Dr. Sebastian Wolf
• 金额: --
• 依托单位: Institut für Theoretische Physik und Astrophysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/210359296?language=en
• 关键词: Young; stellar; binaries; structure; circumbinary

The majority of solar-type stars is born in multiple, preferentially binary systems. The binary nature of young stars is expected to influence the formation of planets in the circumstellar and/or circumbinary disks. So far, about 40 planetary systems in stellar binaries have been found, but no truly circumbinary planet orbiting the central binary.The goal of this project is to investigate the conditions for planet formation in circumbinary accretion disks. Our approach is to perform a systematic analysis of the impact of the stellar binary on the structure of its surrounding circumbinary disk. Based on hydrodynamics simulations and subsequent radiative transfer simulations we will derive the density, velocity, and temperature structure in the circumbinary disk. Moreover, observational quantities will be derived to allow one (a) the verification of our predictions through dedicated observations and (b) the modeling of specific observational data of potential circumbinary disks.

大多数太阳型恒星诞生于多个系统中，特别是双星系统。年轻恒星的双星性质预计会影响星周盘和/或环双星盘中行星的形成。迄今为止，在恒星双星系统中已经发现了大约40个行星系统，但还没有真正围绕中央双星运行的环双星行星。本项目的目标是研究环双星吸积盘中行星形成的条件。我们的方法是执行一个系统的分析的影响，恒星双星的结构，其周围的circumbinary磁盘。基于流体力学模拟和随后的辐射传输模拟，我们将推导出在环双星盘的密度，速度和温度结构。此外，观测量的推导将允许（a）通过专门的观测验证我们的预测和（B）潜在的环双星盘的特定观测数据的建模。

项目成果

Constraints on observing brightness asymmetries in protoplanetary disks at solar system scale

• DOI: 10.1051/0004-6361/201731907
• 发表时间: 2017-09
• 期刊: arXiv: Solar and Stellar Astrophysics
• 作者: R. Brunngraber;S. Wolf

Observability of characteristic binary-induced structures in circumbinary disks

环双星盘中特征双星诱导结构的可观测性

• DOI: 10.1051/0004-6361/201630084
• 发表时间: 2017
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: R. Avramenko;S. Wolf;T. F. Illenseer
• 通讯作者: T. F. Illenseer

Mid-infrared observations of the circumstellar disks around PDS 66 and CRBR 2422.8-3423

PDS 66 和 CRBR 2422 周围星周盘的中红外观测 8-3423

• DOI: 10.1051/0004-6361/201321148
• 发表时间: 2013
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: C. Gräfe;S. Wolf
• 通讯作者: S. Wolf

Understanding discs in binary YSOs – detailed modelling of VV CrA

了解二元 YSO 中的圆盘 â VV CrA 的详细建模

• DOI: 10.1093/mnras/stw460
• 发表时间: 2016
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: P. Scicluna;S. Wolf;T. Ratzka;G. Costigan;R. Launhardt;C. Leinert;F. Ober;C.F. Manara;L. Testi
• 通讯作者: L. Testi

Magnetic fields in molecular clouds: Limitations of the analysis of Zeeman observations

分子云中的磁场：塞曼观测分析的局限性

• DOI: 10.1051/0004-6361/201629001
• 发表时间: 2017
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: R. Brauer;S. Wolf;S. Reissl;F. Ober
• 通讯作者: F. Ober