Imaging the Youngest Exoplanets

对最年轻的系外行星进行成像

• 批准号: 1745406
• 负责人: Joshua Eisner
• 金额: $ 30.86万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-03-01 至 2023-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1745406&HistoricalAwards=false
• 关键词: Imaging; Youngest; Exoplanets

To study the formation and early development of planets around other stars (known as "exoplanets"), this program will measure the properties of infant exoplanets. Using new ways to make astronomical images at the world's largest and most sensitive infrared wavelength telescope--the Large Binocular Telescope at Mt. Graham, Arizona--this program will look at specific characteristics not studied by other scientific programs that image exoplanets. These planned observations can detect younger planets located very close to their host stars. The observations will constrain the processes that form giant planets, and will provide pictures of planets in their infancy. The Principal Investigator will incorporate the results into public lectures in Tucson and into teaching materials. University students will be involved with all aspects of the research.An unusual and highly beneficial aspect of the proposed work is the ability to probe simultaneously at high resolution exoplanets and the environments in which they are forming. The investigators will use non-redundant masking interferometry coupled with adaptive optics on the telescope, which allows observations close to or within the diffraction limit of their telescope system. Non-redundant masking provides high precision measurements, and when used behind an adaptive optics system, can reach faint targets and companions with contrast. This will provide information on the boundary conditions for planet formation, including initial composition, while at the same time constrain how planets are assembled.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

为了研究其他恒星周围行星（称为“系外行星”）的形成和早期发展，该计划将测量婴儿系外行星的性质。 在世界上最大、最灵敏的红外波长望远镜--位于珠穆朗玛峰的大双目望远镜上，使用新的方法拍摄天文图像。格雷厄姆，亚利桑那州--这个项目将研究其他成像系外行星的科学项目所没有研究的具体特征。这些计划中的观测可以探测到非常靠近其宿主恒星的年轻行星。 这些观测将限制形成巨行星的过程，并将提供行星在婴儿期的照片。 首席研究员将把结果纳入图森的公开讲座和教材。 大学生将参与研究的各个方面。拟议工作的一个不寻常和非常有益的方面是能够同时探测高分辨率的系外行星及其形成环境。 研究人员将在望远镜上使用非冗余掩模干涉测量法和自适应光学，这使得观测接近或在望远镜系统的衍射极限内。 非冗余遮蔽提供高精度测量，当在自适应光学系统后面使用时，可以达到微弱的目标和具有对比度的同伴。 该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

ALMA Discovery of a Disk around the Planetary-mass Companion SR 12 c

• DOI: 10.3847/2041-8213/ac6420
• 发表时间: 2022-04
• 期刊: The Astrophysical Journal Letters
• 作者: Ya-Lin Wu;B. Bowler;P. Sheehan;L. Close;J. Eisner;W. Best;K. Ward-Duong;Zhaohuan Zhu;A. Kraus

Imaging nearby, habitable-zone planets with the Large Binocular Telescope Interferometer

使用大型双目望远镜干涉仪对附近的宜居带行星进行成像

• DOI: 10.1117/12.2635333
• 发表时间: 2022
• 期刊: SPIE
• 作者: Ertel, Steve;Wagner, Kevin;Leisenring, Jarron;Apai, Dániel;Defrère, Denis;Dietrich, Jeremy;Eisner, Joshua A.;Faramaz, Virginie;Hoffmann, William;Kasper, Markus
• 通讯作者: Kasper, Markus

ELT Imaging of MWC 297 from the 23 m LBTI: Complex Disk Structure and a Companion Candidate

来自 23 m LBTI 的 MWC 297 ELT 成像：复杂的盘结构和同伴候选者

• DOI: 10.3847/1538-3881/abc957
• 发表时间: 2020
• 期刊: The Astronomical Journal
• 作者: Sallum, S.;Eisner, J. A.;Stone, J. M.;Dietrich, J.;Hinz, P.;Spalding, E.
• 通讯作者: Spalding, E.

Large Binocular Telescope Search for Companions and Substructures in the (Pre)transitional Disk of AB Aurigae

• DOI: 10.3847/1538-4357/ac4be4
• 发表时间: 2022-01
• 期刊: The Astrophysical Journal
• 作者: S. Jorquera;M. Bonnefoy;S. Betti;G. Chauvin;E. Buenzli;L. P'erez;K. Follette;P. Hinz;A. Boccale

New Spatially Resolved Imaging of the SR 21 Transition Disk and Constraints on the Small-grain Disk Geometry

SR 21 过渡盘的新空间分辨成像以及小颗粒盘几何形状的约束

• DOI: 10.3847/1538-4357/ab3dae
• 发表时间: 2019
• 期刊: The Astrophysical Journal
• 作者: Sallum, S.;Skemer, A. J.;Eisner, J. A.;van der Marel, N.;Sheehan, P. D.;Close, L. M.;Ireland, M. J.;Males, J. M.;Morzinski, K. M.;Bailey, V. P.
• 通讯作者: Bailey, V. P.