Studies in Gravitational Waves and Neutron Star Ocean Waves

引力波和中子星海波研究

基本信息

  • 批准号:
    9507686
  • 负责人:
  • 金额:
    $ 6.78万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1995
  • 资助国家:
    美国
  • 起止时间:
    1995-08-01 至 1998-07-31
  • 项目状态:
    已结题

项目摘要

Of the several gravitational wave sources that could potentially be seen by LIGO and VIRGO, the most promising candidate appears to be mergers of neutron stars or black holes in tight binaries. For the so-called `Advanced' versions of these detectors, anticipated event rates from mergers are ~102/yr. Naturally, one will want to glean as much astronomical information as possible from these detections: one will want to determine the angular position and distance to the binary, whether the bodies are neutron stars or black holes, the masses of the two bodies, et cetera. Prof. Cutler will initiate a program of research to determine how accurately LIGO/VIRGO can measure these quantities. In extracting this information from the gravitational wave signal, there are two kinds of errors: measurement errors due to detector noise, and theoretical errors due to limitations on the ability of relativists to accurately calculate the inspiral waveform for a given set of binary parameters. Cutler is investigating both kinds of error, using a mixture of Monte Carlo and analytic techniques. The analysis is made difficult by the fact that much of the interesting information is encoded in small, post-Newtonian pieces of the waveform. There are three principal motivations for the above research. First, it provides guidance to experimentalists as to which elements of the detector design are most crucial for doing astronomy. Second, it provides theorists a guide to the level of accuracy they must `shoot for' in solving the two-body problem. Third, the results allow one to judge the feasibility of potential astronomical applications of binary coalescences, such as using them as standard candles to determine the Hubble constant.
在LIGO和VIRGO可能看到的几个引力波源中,最有希望的候选者似乎是中子星或黑洞在紧双星中的合并。 对于这些探测器的所谓“高级”版本,预计合并事件发生率约为102/年。 自然,人们希望从这些探测中收集尽可能多的天文信息:人们希望确定双星的角位置和距离,无论物体是中子星还是黑洞,两个物体的质量,等等。 卡特勒教授将启动一项研究计划,以确定LIGO/VIRGO可以如何准确地测量这些量。 在从引力波信号中提取这些信息时,有两种误差:由于探测器噪声引起的测量误差,以及由于相对论者精确计算给定二元参数的螺旋波形的能力有限而引起的理论误差。 卡特勒正在研究这两种错误,使用蒙特卡罗和分析技术的混合。 分析是困难的,因为许多有趣的信息被编码在小的后牛顿波形中。 上述研究有三个主要动机。 首先,它为实验者提供了指导,让他们知道探测器设计的哪些元素对天文学来说是最关键的。 第二,它为理论家提供了一个指导,告诉他们在解决两体问题时必须“力争”达到什么样的精确度。 第三,这些结果可以让人们判断双星聚结的潜在天文应用的可行性,例如使用它们作为标准烛光来确定哈勃常数。

项目成果

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Abhay Ashtekar其他文献

Response to Bryan Roberts: A new perspective on <em>T</em> violation
  • DOI:
    10.1016/j.shpsb.2014.07.001
  • 发表时间:
    2015-11-01
  • 期刊:
  • 影响因子:
  • 作者:
    Abhay Ashtekar
  • 通讯作者:
    Abhay Ashtekar
The last 50 years of general relativity and gravitation: from GR3 to GR20 Warsaw conferences
  • DOI:
    10.1007/s10714-014-1706-2
  • 发表时间:
    2014-04-12
  • 期刊:
  • 影响因子:
    2.800
  • 作者:
    Abhay Ashtekar
  • 通讯作者:
    Abhay Ashtekar
Editorial: Golden Oldies criteria and procedures
  • DOI:
    10.1007/s10714-017-2201-3
  • 发表时间:
    2017-02-07
  • 期刊:
  • 影响因子:
    2.800
  • 作者:
    Abhay Ashtekar;Roy Maartens;Malcolm A. H. MacCallum
  • 通讯作者:
    Malcolm A. H. MacCallum
General Relativity and Gravitation introduces Consecutive Article Publishing
  • DOI:
    10.1007/s10714-013-1612-z
  • 发表时间:
    2013-12-10
  • 期刊:
  • 影响因子:
    2.800
  • 作者:
    Ramon Khanna;Abhay Ashtekar;Roy Maartens
  • 通讯作者:
    Roy Maartens
Gravitational interaction and spontaneous breaking of symmetries

Abhay Ashtekar的其他文献

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{{ truncateString('Abhay Ashtekar', 18)}}的其他基金

Theoretical Investigations in Classical and Quantum Gravity
经典和量子引力的理论研究
  • 批准号:
    1806356
  • 财政年份:
    2018
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant
Theoretical Investigations in Classical and Quantum Gravity
经典和量子引力的理论研究
  • 批准号:
    1505411
  • 财政年份:
    2015
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant
Theoretical Investigations in Classical and Quantum Gravity
经典和量子引力的理论研究
  • 批准号:
    1205388
  • 财政年份:
    2012
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant
Theoretical Investigations in Classical and Quantum Gravity
经典和量子引力的理论研究
  • 批准号:
    0854743
  • 财政年份:
    2009
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant
Theoretical Investigations in Classical and Quantum Gravity
经典和量子引力的理论研究
  • 批准号:
    0456913
  • 财政年份:
    2006
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant
Spin Foam Models for Quantum Gravity
量子引力的旋转泡沫模型
  • 批准号:
    0354932
  • 财政年份:
    2004
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant
Travel Support for the Conference "Gravitation: A Decennial Perspective"
“万有引力:十年一次的视角”会议的差旅支持
  • 批准号:
    0331618
  • 财政年份:
    2003
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Standard Grant
Theoretical Investigations in Classical and Quantum Gravity
经典和量子引力的理论研究
  • 批准号:
    0090091
  • 财政年份:
    2001
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant
U.S.-Mexico Cooperative Research: Quantum Gravity, Supersymmetry and Black Holes
美国-墨西哥合作研究:量子引力、超对称性和黑洞
  • 批准号:
    9722514
  • 财政年份:
    1997
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Standard Grant
Theoretical Investigations in Classical and Quantum Gravity
经典和量子引力的理论研究
  • 批准号:
    9514240
  • 财政年份:
    1996
  • 资助金额:
    $ 6.78万
  • 项目类别:
    Continuing Grant

相似国自然基金

Baryogenesis, Dark Matter and Nanohertz Gravitational Waves from a Dark Supercooled Phase Transition
  • 批准号:
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  • 批准年份:
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Probing ultralight bosons with black holes and gravitational waves
用黑洞和引力波探测超轻玻色子
  • 批准号:
    DE240100206
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    2024
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CAREER: Gravitational and Electromagnetic Waves on Black Holes
职业:黑洞上的引力波和电磁波
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    2336118
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Gravitational Waves at the University of Portsmouth - 24/25
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Hyperbolic Geometry and Gravitational Waves
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    2309084
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用引力波寻找广义相对论之外的物理学
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    22KF0178
  • 财政年份:
    2023
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在低温条件下使用氮化硅薄膜改进引力波检测。
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    2903348
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Tidal Disruptions of stars by SMBHsr-ray bursts and gravitational waves
SMBHsr 射线爆发和引力波对恒星的潮汐扰动
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    2886683
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用引力波探索超越标准模型的物理学
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发展深度学习以有效搜索连续引力波以探索新物理和新粒子
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张量扰动的随机形式主义:非线性效应引起的引力波
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