Exploring the Relationship Between Stellar Mass and Planet Occurrence

探索恒星质量与行星出现之间的关系

基本信息

  • 批准号:
    0702821
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Fellowship
  • 财政年份:
    2007
  • 资助国家:
    美国
  • 起止时间:
    2007-08-01 至 2009-08-31
  • 项目状态:
    已结题

项目摘要

Dr. John Johnson is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to carry out a program of research and education at the Institute for Astronomy at the University of Hawaii. Over 150 nearby stars are known to harbor planetary companions, and the physical properties of these host stars provide an important link between the planets detected today and the circumstellar environments from which they formed. Determining the relationship between stellar mass and planet occurrence provides an important test of the core accretion model of planet formation, which predicts how the fraction of stars with planets increases with stellar mass. To measure the occurrence rate of planets as a function of mass, the PI will conduct a precision Doppler survey of intermediate-mass subgiants at Keck Observatory. Subgiants are ideal planet-search candidates due to their narrower spectral lines and lower atmospheric noise compared to their early-type progenitors. This search probes a unique stellar parameter space and will double the mass range of current Keck Doppler surveys.Dr. Johnson will also implement a program of educational outreach in elementary schools using hands-on and multimedia activities that merge planetary science and state-mandated science standards. The lesson plans will be taught in collaboration with Honolulu-area 4th- and 5th-grade teachers. The activities are designed to take students on a journey that begins at the Sun, progresses through the planets of our Solar System, and culminates with the exotic worlds recently discovered around other stars. By serving as a minority role model, Dr. Johnson is uniquely positioned to encourage young, underrepresented students to pursue careers in astronomy.
约翰约翰逊博士被授予NSF天文学和天体物理学博士后奖学金,在夏威夷大学天文学研究所开展研究和教育计划。已知有超过150颗邻近恒星拥有行星伴星,这些主星的物理性质提供了今天发现的行星与它们形成的星周环境之间的重要联系。确定恒星质量和行星出现之间的关系提供了一个重要的测试核心吸积模型的行星形成,预测恒星的行星的分数如何增加与恒星质量。为了测量行星的出现率作为质量的函数,PI将在凯克天文台对中等质量的亚巨星进行精确的多普勒测量。次巨星是理想的行星搜索候选者,因为它们的光谱线较窄,与早期类型的祖先相比,大气噪音较低。这项研究探索了一个独特的恒星参数空间,将使目前凯克多普勒调查的质量范围扩大一倍。约翰逊博士还将在小学实施一项教育推广计划,利用实践和多媒体活动,将行星科学和国家规定的科学标准结合起来。课程计划将与檀香山地区的四年级和五年级教师合作教授。这些活动旨在让学生踏上从太阳开始的旅程,通过我们太阳系的行星,并以最近在其他恒星周围发现的异国情调的世界为高潮。通过作为少数民族的榜样,约翰逊博士具有独特的地位,鼓励年轻的,代表性不足的学生追求天文学事业。

项目成果

期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
专利数量(0)

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John Johnson其他文献

Free space laser communications advanced technology demonstration
  • DOI:
    10.2514/6.1993-4145
  • 发表时间:
    1993-09
  • 期刊:
  • 影响因子:
    0
  • 作者:
    John Johnson
  • 通讯作者:
    John Johnson
Does Ventricular Substrate Play a Role in Incident Stroke? The Atherosclerosis Risk in Communities (ARIC) Study.
心室基质在中风发生中发挥作用吗?
  • DOI:
    10.1101/2020.05.04.20090910
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    John Johnson;K. Haq;Katherine J Lutz;Kyle K Peters;Kevin A. Paternostro;Natalie E. Craig;Nathan W. L. Stencel;L. Hawkinson;M. Khayyat;L. Tereshchenko
  • 通讯作者:
    L. Tereshchenko
P6. Are Preoperative HRQOL Scores Predictive of Clinical Outcomes after Lumbar Fusion?
  • DOI:
    10.1016/j.spinee.2008.06.648
  • 发表时间:
    2008-09-01
  • 期刊:
  • 影响因子:
  • 作者:
    Leah Carreon;Steven Glassman;Mladen Djurasovic;John Dimar;John Johnson;Rolando Puno;Mitchell Campbell
  • 通讯作者:
    Mitchell Campbell
Common variable immunodeficiency associated with stiff-person syndrome
  • DOI:
    10.1016/j.anai.2018.01.002
  • 发表时间:
    2018-04-01
  • 期刊:
  • 影响因子:
  • 作者:
    Jason Schend;Dave McGarry;John Johnson;Robert Hostoffer
  • 通讯作者:
    Robert Hostoffer
The Adaptive Success Identity Plan (ASIP): A Career Intervention for College Students
适应性成功身份计划(ASIP):针对大学生的职业干预
  • DOI:
    10.1002/j.2161-0045.1998.tb00728.x
  • 发表时间:
    1998
  • 期刊:
  • 影响因子:
    2.1
  • 作者:
    V. S. Solberg;Nance Gusavac;T. Hamann;Jill Felch;John Johnson;Susie D. Lamborn;J. Torres
  • 通讯作者:
    J. Torres

John Johnson的其他文献

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{{ truncateString('John Johnson', 18)}}的其他基金

MINERVA: Purchase of Kiwispec, a Robotic Precision Spectrograph to Detect Earth-Like Planets Around Nearby Stars
MINERVA:购买 Kiwispec,一种机器人精密摄谱仪,用于探测附近恒星周围的类地行星
  • 批准号:
    1608203
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
MINERVA: A dedicated observatory for exoplanet science
MINERVA:系外行星科学专用天文台
  • 批准号:
    1516242
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Conference on New Studies of Neurobehavioral Evolution; Washington, DC; June 25-28 2010
神经行为进化新研究会议;
  • 批准号:
    1023222
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: Accessing Brain Collection Information and Images Via the Internet, CD-ROM and Centralized Location
合作研究:通过互联网、CD-ROM 和集中位置访问大脑采集信息和图像
  • 批准号:
    0131267
  • 财政年份:
    2002
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Colaborative Research: Accessing Brain Collection Informationand Images Via Internet, CD-Rom and Centralized Location
合作研究:通过互联网、CD-ROM 和集中位置访问大脑采集信息和图像
  • 批准号:
    9814911
  • 财政年份:
    1998
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Collaborative Research: Accessing Comparative Brain Collections
合作研究:访问比较性大脑收藏
  • 批准号:
    9528326
  • 财政年份:
    1995
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Imaging the Diversity of Mammalian Brains: An Electronic Catalog for Wide Accessibility
哺乳动物大脑多样性成像:可广泛使用的电子目录
  • 批准号:
    9111592
  • 财政年份:
    1991
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
The Structure and Function of Triocornaviruses
Triocornaviruses的结构和功能
  • 批准号:
    8817057
  • 财政年份:
    1989
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Software Development for Macromolecular Crystallography
高分子晶体学软件开发
  • 批准号:
    8509549
  • 财政年份:
    1986
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Structural Studies of Multi Component RNA Plant Viruses
多组分RNA植物病毒的结构研究
  • 批准号:
    8511084
  • 财政年份:
    1985
  • 资助金额:
    --
  • 项目类别:
    Standard Grant

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