CAREER: A New Approach to Particle Astrophysics with VERITAS and Multi-wavelength Data

职业生涯:利用 VERITAS 和多波长数据进行粒子天体物理学的新方法

基本信息

  • 批准号:
    1555161
  • 负责人:
  • 金额:
    $ 78.19万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2016
  • 资助国家:
    美国
  • 起止时间:
    2016-02-01 至 2022-09-30
  • 项目状态:
    已结题

项目摘要

Gamma-rays are the highest energy form of electromagnetic radiation. Observations of astrophysical gamma-rays serve as probes of physical conditions and processes in the most extreme environments throughout the Universe, and can be used to test fundamental physics. The Very Energetic Radiation Imaging Telescope Array System (VERITAS), located in southern Arizona, is a ground-based observatory designed to study high-energy gamma-rays. VERITAS has unique capabilities, providing high sensitivity pointed observations of both galactic and extragalactic sources. This award supports scientists at Iowa State University to carry out research with VERITAS. The group will work on new data analysis techniques to improve the study of spatially-extended sources and to facilitate the joint analysis of data from multiple observatories. Using these new analysis techniques the group will conduct a systematic study of Galactic sources of particle acceleration, and ultimately search for signatures of dark matter. The group will work with the Iowa State University planetarium developing multi-wavelength astronomy and high-energy astrophysics shows, displays, and demonstrations. The PI has adapted a maximum likelihood framework for VERITAS data analysis that will be extended to enable simultaneous fitting of data from multiple instruments. In addition, the PI will implement a new background estimation method based on this maximum likelihood framework that will improve the analysis of extended sources. Together, these developments will help maximize the impact of the VERITAS long-term science program. The PI will perform a systematic study of Galactic particle accelerators such as supernova remnants and pulsar wind nebulae, their interaction with their immediate environment, and the evolution of the particles they produce, along with more long-range work searching regions of high dark matter density for the gamma-ray signature of dark matter self-annihilation.
伽马射线是电磁辐射的最高能量形式。对天体物理伽马射线的观测可以作为宇宙中最极端环境中的物理条件和过程的探测器,并可用于测试基本物理。位于亚利桑那州南部的高能辐射成像望远镜阵列系统(VERITAS)是一个地面天文台,旨在研究高能伽马射线。VERITAS具有独特的能力,可以提供对银河系和银河系外来源的高灵敏度定点观测。该奖项支持爱荷华州立大学的科学家与VERITAS一起开展研究。该小组将致力于新的数据分析技术,以改进对空间扩展来源的研究,并促进对来自多个观测站的数据的联合分析。使用这些新的分析技术,该小组将对银河系粒子加速来源进行系统研究,并最终寻找暗物质的特征。该小组将与爱荷华州立大学天文馆合作,开发多波长天文学和高能天体物理学展示、展示和演示。PI采用了VERITAS数据分析的最大似然框架,该框架将得到扩展,以便能够同时拟合来自多个仪器的数据。此外,PI将在这一最大似然框架的基础上实施一种新的背景估计方法,这将改善对扩展信源的分析。总而言之,这些进展将有助于最大限度地发挥VERITAS长期科学计划的影响。PI将对超新星遗迹和脉冲星风星云等银河粒子加速器进行系统研究,它们与周围环境的相互作用,以及它们产生的粒子的演化,以及更多的远程工作,搜索暗物质高密度区域的伽马射线特征,寻找暗物质自湮灭的特征。

项目成果

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Amanda Weinstein其他文献

Amanda Weinstein的其他文献

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{{ truncateString('Amanda Weinstein', 18)}}的其他基金

Collaborative Research: CDS&E: Investigating a Self-Assembling Data Paradigm for Detector Arrays
合作研究:CDS
  • 批准号:
    1419259
  • 财政年份:
    2014
  • 资助金额:
    $ 78.19万
  • 项目类别:
    Continuing Grant

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