Gas in the Planet-Forming Region of Circumstellar Disks: High Dispersion Infrared Spectroscopy and Spectro-Astrometry

恒星盘行星形成区域中的气体:高色散红外光谱和光谱天体测量

基本信息

  • 批准号:
    0708922
  • 负责人:
  • 金额:
    $ 39.99万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2007
  • 资助国家:
    美国
  • 起止时间:
    2007-09-15 至 2012-08-31
  • 项目状态:
    已结题

项目摘要

Dr. Geoffrey Blake (Calfornia Institute of Technology) will lead a collaborative research program with researchers at Leiden University that will utilize the Keck Near Infrared Spectrometer (Keck-NIRSPEC) and the Very Large Telescope Cryogenic High-Resolution Infrared Echelle Spectrograph (VLT-CRIRES) to study the properties and evolution of the gas in protoplanetary disks. Circumstellar disks around young stars provide the pivotal link between star formation and (exo)-planetary science. The physical and chemical structures of these disks, along with their transport properties and evolutionary timescales, play a central role in determining what sort of planetary system, if any, can be formed. Probes of the gas in the inner few tens of Astronomical Units (AU) (the planet-building zone) are particularly needed to distinguish between competing planetary formation models. While the direct imaging of the gas in such regions lies several years into the future, infrared spectroscopy and spectro-astrometry provide an alternative route. Dr. Blake, and others, have recently shown that the fundamental rovibrational emission from carbon monoxide near 4.7 µm provides a widely observable diagnostic of the gas in the 0.5-50 AU region of circumstellar disks.The radiative transfer tools to be developed as part of this proposal will benefit the entire astronomical community. The results of this research project will guide observations with the next generation of microwave/THz and infrared telescopes, and should enable detailed and quantitative models to be constructed of the planet-forming regions of circumstellar disks. This program will also push ground-based infrared spectroscopy and spectro-astrometry to their limits, and will require the optimization of data acquisition, calibration, and reduction routines to achieve a dynamic range close to that imposed by photon statistics. Such routines will be of use to a wide range of observational programs, including infrared radial velocity efforts and the characterization of extrasolar planetary atmospheres from transit measurements. At least four graduate students and several undergraduates will be trained in an exceptionally interdisciplinary manner as part of this research program. Dr. Blake's group is also highly involved in the Caltech Science for Early Educational Development and The Caltech Precollege Science Initiative K-12 educational programs, and is developing new teaching modules for a variety of grade levels.
Geoffrey Blake博士(加州理工学院)将与莱顿大学的研究人员领导一项合作研究计划,该计划将利用Keck近红外光谱仪(NIRSPEC)和甚大望远镜低温高分辨率红外中阶梯光谱仪(VLT-CRIRES)研究原行星盘中气体的性质和演变。年轻恒星周围的星周盘是星星形成和(外)行星科学之间的关键联系。这些盘的物理和化学结构,沿着它们的传输特性和演化时间尺度,在决定什么样的行星系统(如果有的话)可以形成方面起着核心作用。在几十个天文单位(Au)(行星形成区)内部的气体探测器特别需要区分竞争的行星形成模型。虽然对这些区域的气体直接成像需要几年的时间,但红外光谱和光谱天体测量提供了一种替代途径。布莱克博士和其他研究人员最近发现,在4.7微米附近,一氧化碳的基本振转辐射提供了一个在0.5-50 Au区域的环周盘气体的广泛观测诊断。作为这项提议的一部分,将开发的辐射传输工具将使整个天文学界受益。这一研究项目的结果将指导下一代微波/太赫兹和红外望远镜的观测,并应能够构建星周盘行星形成区域的详细和定量模型。该计划还将把地基红外光谱和光谱天体测量推向极限,并将需要优化数据采集,校准和还原例程,以实现接近光子统计所施加的动态范围。这些例行程序将用于广泛的观测方案,包括红外径向速度工作和通过凌日测量确定太阳系外行星大气的特征。 至少有四名研究生和几名本科生将在一个非常跨学科的方式作为本研究计划的一部分进行培训。布莱克博士的团队还积极参与加州理工学院早期教育发展科学和加州理工学院学前科学计划K-12教育项目,并正在为各种年级开发新的教学模块。

项目成果

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Geoffrey Blake其他文献

Geoffrey Blake的其他文献

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{{ truncateString('Geoffrey Blake', 18)}}的其他基金

Probing Intermolecular Dynamics with Nonlinear Ultrafast THz Spectroscopy
用非线性超快太赫兹光谱探测分子间动力学
  • 批准号:
    2316042
  • 财政年份:
    2023
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Standard Grant
Two Dimensional TeraHertz Spectroscopy of Molecular Liquids
分子液体的二维太赫兹光谱
  • 批准号:
    1665467
  • 财政年份:
    2017
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Continuing Grant
Collaborative Research: Making a Habitable Planet - The Evolution of the Volatile Inventory in Gas-Rich Planet-Forming Disks
合作研究:创造宜居行星——富含气体的行星形成盘中挥发性物质的演化
  • 批准号:
    1514918
  • 财政年份:
    2015
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Continuing Grant
Toward the Coherent Control of Large Amplitude Molecular Dynamics
走向大振幅分子动力学的相干控制
  • 批准号:
    1214123
  • 财政年份:
    2012
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Standard Grant
Gas in the Planet-Forming Region of Circumstellar Disks: Exploiting the Mid-IR Molecular Forest
恒星盘行星形成区域中的气体:利用中红外分子森林
  • 批准号:
    1109857
  • 财政年份:
    2011
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Continuing Grant
Development of an Integrated Time and Frequency Domain THz Spectroscopy and Dynamics Facility
集成时域和频域太赫兹光谱和动力学设施的开发
  • 批准号:
    0722330
  • 财政年份:
    2007
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Continuing Grant
THz Spectroscopy of Candidate Prebiotic Species: Exploring the Conformational Energy Landscape of Flexible Molecules and the Limits of Interstellar Molecular Complexity
候选生命起源物种的太赫兹光谱:探索柔性分子的构象能量景观和星际分子复杂性的极限
  • 批准号:
    0415745
  • 财政年份:
    2004
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Continuing Grant
Development of Novel, Compact Light Sources for Advanced Spectroscopy in Atmospheric Science and Materials Research
为大气科学和材料研究中的高级光谱学开发新型紧凑光源
  • 批准号:
    9724500
  • 财政年份:
    1997
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Standard Grant
Ab Initio Calculation of Interatomic Potentials for Silicates and Oxides
硅酸盐和氧化物原子间势的从头算
  • 批准号:
    9316432
  • 财政年份:
    1994
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Standard Grant
High Resolution Vibration - Rotation - Tunneling Spectroscopy of Weakly Bound Complexes
弱结合配合物的高分辨率振动-旋转-隧道光谱
  • 批准号:
    9415488
  • 财政年份:
    1994
  • 资助金额:
    $ 39.99万
  • 项目类别:
    Continuing Grant

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Accretion variability and its consequences: from protostars to planet-forming disks
  • 批准号:
    12173003
  • 批准年份:
    2021
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    60 万元
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GEPOD: Global Evolution of Planet-fOrming Disks
GEPOD:行星形成盘的全球演化
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Dust Concentration in Gas Substructures of Non-Ideal MHD Planet-Forming Disks
非理想 MHD 行星形成盘气体子结构中的灰尘浓度
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    2307199
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流光:将物质从包层输送到最年轻​​的行星形成盘
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Catch a Fading Star: Using Transient Dimming to Explore the Planet-Forming Zones of Young Stars
捕捉一颗正在衰落的恒星:利用瞬态变暗来探索年轻恒星的行星形成区
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地球内核和系外行星深处地球/行星形成物质的理论研究
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