Studying Planet Formation by Mapping Small-scale Structures in Circumstellar Disks

通过绘制星周盘中的小尺度结构来研究行星的形成

基本信息

批准号：
1715719
负责人：
Andrea Isella
金额：
$ 48.71万
依托单位：
William Marsh Rice University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-09-01 至 2021-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1715719&HistoricalAwards=false
关键词：
Studying Planet Formation Mapping Small

项目摘要

Planets formed from material in disks that once surrounded the stars they orbit. Part of this process includes this material clumping into larger grains or pieces. With the new Atacama Large Millimeter/submillimeter Array (ALMA) and Jansky Very Large Array (VLA) radio telescopes, it is now possible to see material well into the zones in many of these disks where planets are forming. In this project, the investigators will look first for clumps of dust of different sizes and structures in disks around other stars. They will then study how the different structures affect the distribution of dust pieces having different sizes. Finally, they will measure how the dust pieces are spread in the disk with respect to gases of different molecules. The goal of this project is to learn whether the different observed structures trap solid dust pieces. This project serves the national interest by advancing our understanding of the science behind the formation of planetary systems. A postdoctoral scholar and a graduate student will conduct the research. All of the raw and processed data will be available to the scientific community.This project will study the formation of planets by mapping small-scale structures in nearby circumstellar disks around pre-main sequence stars, using ALMA and VLA radio observations that will resolve material well into the planet-forming zones of a large sample of disks. The research has three main goals. First, quantify the prevalence and morphology of small-scale structures in the distribution of dust particles. This will be achieved by mapping the 1.3 mm dust continuum emission in 20 nearby disks at an angular resolution of about 0.04". Second, study how these structures affect the distribution of dust grains with different sizes. To do this, multi-wavelength observations between 0.87 mm and 1 cm, which probe the distribution of mm- and cm-sized dust grains, will be acquired. Third, measure the distribution of dust particles relative to the molecular gas. This goal will be achieved by mapping the molecular line emission (e.g., CO) from disks characterized by substructures at an angular resolution comparable to that of the continuum maps. The goal is to understand if the observed structures trap solid dust particles, therefore solving the long-standing radial migration problem. A postdoctoral scholar and a graduate student will conduct the data analysis and publication of the results. Additionally, the scientific community will receive access to the full suite of data products derived from this program.

行星是由盘中的物质形成的，盘中的物质曾经围绕着它们绕轨道运行的恒星。该过程的一部分包括将材料聚集成更大的颗粒或碎片。借助新的阿塔卡马大型毫米/亚毫米阵列（ALMA）和扬斯基甚大阵列（VLA）射电望远镜，现在可以在许多这些盘中的行星形成区域中看到物质。在这个项目中，研究人员将首先在其他恒星周围的圆盘中寻找不同大小和结构的尘埃团。然后他们将研究不同的结构如何影响不同尺寸的灰尘颗粒的分布。最后，他们将测量灰尘碎片相对于不同分子的气体如何在圆盘中扩散。该项目的目标是了解观察到的不同结构是否会捕获固体灰尘。该项目通过增进我们对行星系统形成背后的科学的理解来服务于国家利益。一名博士后学者和一名研究生将进行这项研究。所有原始和处理后的数据都将提供给科学界。该项目将通过绘制前主序恒星周围星周盘中的小尺度结构图来研究行星的形成，使用 ALMA 和 VLA 射电观测来解析材料深入到大量圆盘样本的行星形成区。该研究有三个主要目标。首先，量化灰尘颗粒分布中小尺度结构的普遍程度和形态。这将通过以约 0.04 英寸的角分辨率绘制 20 个附近圆盘中 1.3 毫米尘埃连续发射的图来实现。其次，研究这些结构如何影响不同尺寸尘埃颗粒的分布。为此，需要在0.87毫米和1厘米，探测毫米和厘米大小的尘埃颗粒的分布，第三，测量尘埃颗粒相对于分子气体的分布。这一目标将通过绘制尘埃颗粒的图来实现。圆盘的分子线发射（例如，CO）的角分辨率与连续谱图相当，目的是了解观察到的结构是否捕获固体尘埃颗粒，从而解决长期存在的径向迁移问题。此外，博士后学者和研究生将进行数据分析并发布结果，科学界将获得从该项目衍生的全套数据产品。

项目成果

期刊论文数量（22）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

A Circumplanetary Disk around PDS70c

DOI：
10.3847/2041-8213/ac0f83
发表时间：
2021-07-01
期刊：
ASTROPHYSICAL JOURNAL LETTERS
影响因子：
7.9
作者：
Benisty, Myriam;Bae, Jaehan;Zurlo, Alice
通讯作者：
Zurlo, Alice

The Disk Substructures at High Angular Resolution Project (DSHARP). IX. A High-definition Study of the HD 163296 Planet-forming Disk

DOI：
10.3847/2041-8213/aaf747
发表时间：
2018-12
期刊：
The Astrophysical Journal Letters
影响因子：
0
作者：
A. Isella;Jane Huang;S. Andrews;C. Dullemond;T. Birnstiel;Shangjia Zhang;Zhaohuan Zhu;V. Guzm'an-V.-Guzm'a
通讯作者：
A. Isella;Jane Huang;S. Andrews;C. Dullemond;T. Birnstiel;Shangjia Zhang;Zhaohuan Zhu;V. Guzm'an-V.-Guzm'a

Nine Localized Deviations from Keplerian Rotation in the DSHARP Circumstellar Disks: Kinematic Evidence for Protoplanets Carving the Gaps

DOI：
10.3847/2041-8213/ab6dda
发表时间：
2020-01
期刊：
The Astrophysical Journal Letters
影响因子：
0
作者：
C. Pinte;Daniel J. Price;F. Menard;G. Duchêne;V. Christiaens;S. Andrews;Jane Huang;Tracey Hill;G. V. D. Plas;L. M. Pérez;A. Isella;Y. Boehler;W. Dent;D. Mentiplay;R. Loomis
通讯作者：
C. Pinte;Daniel J. Price;F. Menard;G. Duchêne;V. Christiaens;S. Andrews;Jane Huang;Tracey Hill;G. V. D. Plas;L. M. Pérez;A. Isella;Y. Boehler;W. Dent;D. Mentiplay;R. Loomis

The Disk Substructures at High Angular Resolution Project (DSHARP). X. Multiple Rings, a Misaligned Inner Disk, and a Bright Arc in the Disk around the T Tauri star HD 143006

DOI：
10.3847/2041-8213/aaf745
发表时间：
2018-12
期刊：
The Astrophysical Journal Letters
影响因子：
0
作者：
L. P'erez;M. Benisty;S. Andrews;A. Isella;C. Dullemond;Jane Huang;N. Kurtovic;V. Guzm'an;
通讯作者：
L. P'erez;M. Benisty;S. Andrews;A. Isella;C. Dullemond;Jane Huang;N. Kurtovic;V. Guzm'an;

The Disk Substructures at High Angular Resolution Project (DSHARP). II. Characteristics of Annular Substructures

DOI：
10.3847/2041-8213/aaf740
发表时间：
2018-12
期刊：
The Astrophysical Journal Letters
影响因子：
0
作者：
Jane Huang;S. Andrews;C. Dullemond;A. Isella;L. P'erez;V. Guzm'an;K. Öberg;Zhaohuan Zhu;
通讯作者：
Jane Huang;S. Andrews;C. Dullemond;A. Isella;L. P'erez;V. Guzm'an;K. Öberg;Zhaohuan Zhu;