Direct Imaging Characterization of Exoplanets and Circumstellar Disks

系外行星和恒星盘的直接成像表征

• 批准号: 1716560
• 金额: --
• 依托单位: University of Edinburgh
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1716560
• 关键词: Direct; Imaging; Characterization; Exoplanets; Circumstellar

Recently, the first exoplanets have been imaged around young as well as main sequence stars, representing a major scientific breakthrough in our understanding of extrasolar giant planets. Directly measuring colors, spectra, and luminosities provides much-needed constraints on the temperatures and compositions of these objects. The ensemble of directly imaged exoplanets as well as contrast information from the surveys which yielded them also allow the most accuratedetermination of the distribution of wide extrasolar giant planets to date, a valuable constraint for models of planet formation. Young planets exist in interplay with the disks that formed them; thus, directly imaging these disks also yields vital clues about unseen planets as well as planetary formation.Clemence will help reduce and analyse VLT Sparse Aperture Masking data as well as survey data from the Gemini-South NICI Planet Finding Campaign, the Subaru SEEDS survey (Strategic Exploration of Exoplanet and Disk Systems), and the LBT LEECH survey. In addition to single-object studies of directly imaged planets and circumstellar disks, the student will work on statistical analyses of large direct imaging survey samples.

最近，第一个系外行星是围绕年轻和主要序列恒星成像的，这代表了我们对极性巨型行星的重要科学突破。直接测量颜色，光谱和亮度，对这些物体的温度和成分提供了急需的约束。直接成像的系外行星的合奏以及来自调查的对比度信息也使它们最精确地确定了广泛的外巨星巨型行星的分布，这是行星形成模型的有价值的约束。年轻的行星与形成它们的磁盘的相互作用存在。因此，直接成像这些磁盘还产生了有关看不见的行星以及行星形成的重要线索。Clemence将有助于减少和分析VLT稀疏的孔掩蔽数据以及Gemini-South-South Nici Planet发现运动的调查数据，发现Subaru Seeds Sepss，调查了Exoplanet和Disk Systems和LBT Leech的策略探索。除了对直接成像的行星和星际磁盘的单对象研究外，学生还将研究大型直接成像调查样本的统计分析。

项目成果

A high binary fraction for the most massive close-in giant planets and brown dwarf desert members

• DOI: 10.1093/mnras/stz671
• 发表时间: 2019-03
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: C. Fontanive;K. Rice;M. Bonavita;E. Lopez;K. Mužić;B. Biller

A new method for target selection in direct imaging programmes with COPAINS

COPAINS 直接成像程序中目标选择的新方法

• DOI: 10.1093/mnras/stz2587
• 发表时间: 2019
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Fontanive C

Constraining the multiplicity statistics of the coolest brown dwarfs: binary fraction continues to decrease with spectral type

限制最冷褐矮星的多重性统计：二元分数随着光谱类型继续减少

• DOI: 10.1093/mnras/sty1682
• 发表时间: 2018
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Fontanive C