The Einstein@Home search for new neutron stars
Einstein@Home 寻找新中子星
基本信息
- 批准号:1816904
- 负责人:
- 金额:$ 53.27万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-07-15 至 2024-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Einstein@Home is a volunteer distributed computing project. When otherwise idle, home computers download astronomical data from the Einstein@Home servers, search it for weak signals, and upload the results. The aim of Einstein@Home is to discover new neutron stars, using gravitational wave data from the advanced LIGO and Virgo observatories, gamma-ray data from the Fermi Satellite, and radio data from the Arecibo Observatory and other radio telescopes. Neutron stars, the targets of this search, are extreme objects formed in supernova explosions. Although they are only about ten miles in diameter, they are more massive than the Sun. So far, most neutron stars have been discovered via pulsations that occur when their beamed electromagnetic emission regularly sweeps past the earth. However, while it is believed that the Milky Way contains about a hundred million neutron stars, fewer than 3000 have been detected so far. Gravitational waves might well be the only way to unveil this invisible population of extreme objects. A project run by the University of Wisconsin at Milwaukee has three goals to use Einstein@Home to (1) Make the first direct detection of gravitational waves from spinning neutron stars, and thus to observe these stars via a completely different physical mechanism, which would carry important new information about their internal structure and composition. (2) Make use of new high-frequency radio data from the MeerKAT telescope array in South Africa to discover neutron stars near the Galactic center. These would give the community a way to study the supermassive black hole that resides there, as well as the dense and active region around it. (3) Use gamma-ray data to identify radio-quiet millisecond gamma-ray pulsars, providing new evidence about the evolution and emission of pulsars. Einstein@Home is an outstanding public outreach effort, allowing people world-wide to contribute directly to exciting and cutting-edge scientific research.Since it began, Einstein@Home volunteers have donated more than 3 billion CPU-core hours of computing time to the project. Using typical costing (cloud providers like Amazon, or super-computing centers) this represents more than 100 million dollars of computing time. This award also funds the continued operations and further development of Einstein@Home, including maintenance and administration of the central hardware and software infrastructure, the handling and post-processing of LIGO, Virgo, Fermi and radio data, and the design and implementation of improved search methods. The detection of continuous gravitational waves will provide glimpses into the invisible population of neutron stars that inhabits our Galaxy and shed light on their internal structure and evolutionary history. The discovery of new neutron stars in short period binaries and near the Galactic center will improve our understanding of stellar evolution and populations, help study the black hole at the Galactic center, and provide stringent tests of general relativity. Discovery of new millisecond radio pulsars will improve the ability of "pulsar timing arrays" to detect low-frequency gravitational waves.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
爱因斯坦@Home是一个志愿者分布式计算项目。当其他时间空闲时,家用计算机从爱因斯坦@Home服务器下载天文数据,搜索微弱信号,然后上传结果。爱因斯坦之家的目标是利用先进的LIGO和Virgo天文台的引力波数据、费米卫星的伽马射线数据以及阿雷西博天文台和其他射电望远镜的射电数据来发现新的中子星。这次搜索的目标中子星是在超新星爆炸中形成的极端天体。虽然它们的直径只有10英里,但它们的质量比太阳还大。到目前为止,大多数中子星都是通过它们的束流电磁辐射规律地扫过地球时发生的脉动被发现的。然而,尽管人们认为银河系包含约1亿颗中子星,但到目前为止,探测到的中子星还不到3000颗。引力波很可能是揭示这群看不见的极端物体的唯一途径。威斯康星大学密尔沃基分校的一个项目有三个目标:(1)首次直接探测自转中子星的引力波,从而通过一种完全不同的物理机制观察这些恒星,这将携带关于它们内部结构和组成的重要新信息。(2)利用南非Meerkat望远镜阵列的新高频射电数据,发现银河系中心附近的中子星。这些将为该社区提供一种方法来研究居住在那里的超大质量黑洞,以及它周围的密集和活跃区域。(3)利用伽马射线数据识别射电安静的毫秒级伽马射线脉冲星,为脉冲星的演化和发射提供新的证据。爱因斯坦@Home是一项杰出的公共宣传活动,让世界各地的人们能够直接为激动人心的尖端科学研究做出贡献。自该项目开始以来,爱因斯坦@Home的志愿者已经为该项目捐赠了超过30亿个CPU核心时间。使用典型的成本计算(如亚马逊等云提供商或超级计算中心),这意味着超过1亿美元的计算时间。该奖项还资助爱因斯坦之家的继续运营和进一步发展,包括维护和管理中央硬件和软件基础设施,处理和后处理LIGO、处女座、费米和无线电数据,以及设计和实施改进的搜索方法。对连续引力波的探测将提供对居住在我们银河系中的不可见中子星群体的一瞥,并揭示它们的内部结构和演化历史。在短周期双星和银心附近发现新的中子星,将提高我们对恒星演化和星系群的理解,有助于研究银心黑洞,并提供严格的广义相对论测试。新的毫秒射电脉冲星的发现将提高“脉冲星定时阵列”探测低频引力波的能力。这一奖项反映了美国国家科学基金会的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Results From an Einstein@Home Search for Continuous Gravitational Waves From G347.3 at Low Frequencies in LIGO O2 Data
- DOI:10.3847/1538-4357/ac35cb
- 发表时间:2021-08
- 期刊:
- 影响因子:0
- 作者:J. Ming;M. Papa;H. Eggenstein;B. Machenschalk;B. Steltner;R. Prix;B. Allen;O. Behnke
- 通讯作者:J. Ming;M. Papa;H. Eggenstein;B. Machenschalk;B. Steltner;R. Prix;B. Allen;O. Behnke
Discovery of a Gamma-Ray Black Widow Pulsar by GPU-accelerated Einstein@Home
- DOI:10.3847/2041-8213/abbc02
- 发表时间:2020-09
- 期刊:
- 影响因子:0
- 作者:L. Nieder;L. Nieder;C. Clark;D. Kandel;R. Romani;Cees Bassa;B. Allen;B. Allen;B. Allen
- 通讯作者:L. Nieder;L. Nieder;C. Clark;D. Kandel;R. Romani;Cees Bassa;B. Allen;B. Allen;B. Allen
Study of 72 Pulsars Discovered in the PALFA Survey: Timing Analysis, Glitch Activity, Emission Variability, and a Pulsar in an Eccentric Binary
- DOI:10.3847/1538-4357/ac375d
- 发表时间:2021-08
- 期刊:
- 影响因子:0
- 作者:E. Parent;H. Sewalls;P. Freire;T. Matheny;A. Lyne;B. Perera;F. Cardoso;M. Mclaughlin;B. Allen;A. Brazier;F. Camilo;S. Chatterjee;J. Cordes;F. Crawford;J. Deneva;F. Dong;R. Ferdman;E. Fonseca;J. Hessels;V. Kaspi;B. Knispel;J. van Leeuwen;R. Lynch;B. M. Meyers;J. McKee;M. Mickaliger;C. Patel;S. Ransom;A. Rochon;P. Scholz;I. Stairs;B. Stappers;C. Tan;W. Zhu
- 通讯作者:E. Parent;H. Sewalls;P. Freire;T. Matheny;A. Lyne;B. Perera;F. Cardoso;M. Mclaughlin;B. Allen;A. Brazier;F. Camilo;S. Chatterjee;J. Cordes;F. Crawford;J. Deneva;F. Dong;R. Ferdman;E. Fonseca;J. Hessels;V. Kaspi;B. Knispel;J. van Leeuwen;R. Lynch;B. M. Meyers;J. McKee;M. Mickaliger;C. Patel;S. Ransom;A. Rochon;P. Scholz;I. Stairs;B. Stappers;C. Tan;W. Zhu
Einstein@Home All-sky Search for Continuous Gravitational Waves in LIGO O2 Public Data
- DOI:10.3847/1538-4357/abc7c9
- 发表时间:2020-09
- 期刊:
- 影响因子:0
- 作者:B. Steltner;M. Papa;H. Eggenstein;B. Allen;V. Dergachev;R. Prix;B. Machenschalk;S. Walsh;S. Zhu;O. Behnke;S. Kwang
- 通讯作者:B. Steltner;M. Papa;H. Eggenstein;B. Allen;V. Dergachev;R. Prix;B. Machenschalk;S. Walsh;S. Zhu;O. Behnke;S. Kwang
Exploiting Orbital Constraints from Optical Data to Detect Binary Gamma-Ray Pulsars
- DOI:10.3847/1538-4357/abaf53
- 发表时间:2020-04
- 期刊:
- 影响因子:0
- 作者:L. Nieder;B. Allen;C. Clark;H. J. P. M. F. Gravitationsphysik;L. Hannover;D. O. Physics;U. Wisconsin-Milwau
- 通讯作者:L. Nieder;B. Allen;C. Clark;H. J. P. M. F. Gravitationsphysik;L. Hannover;D. O. Physics;U. Wisconsin-Milwau
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Bruce Allen其他文献
Template banks based on
Zn
and
An*
lattices
基于 Zn 和 An* 晶格的模板库
- DOI:
- 发表时间:
2021 - 期刊:
- 影响因子:5
- 作者:
Bruce Allen;Andrey A. Shoom - 通讯作者:
Andrey A. Shoom
Graviton propagator in de Sitter space.
德西特空间中的引力子传播器。
- DOI:
10.1103/physrevd.34.3670 - 发表时间:
1986 - 期刊:
- 影响因子:0
- 作者:
Bruce Allen - 通讯作者:
Bruce Allen
Stochastic gravity-wave background in inflationary-universe models.
- DOI:
10.1103/physrevd.37.2078 - 发表时间:
1988-04 - 期刊:
- 影响因子:0
- 作者:
Bruce Allen - 通讯作者:
Bruce Allen
Answers to frequently asked questions about the pulsar timing array Hellings and Downs curve
有关脉冲星计时阵列 Hellings 和 Downs 曲线的常见问题解答
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
J. Romano;Bruce Allen - 通讯作者:
Bruce Allen
Pulsar timing array source ensembles
脉冲星定时阵列源系综
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:5
- 作者:
Bruce Allen;S. Valtolina - 通讯作者:
S. Valtolina
Bruce Allen的其他文献
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{{ truncateString('Bruce Allen', 18)}}的其他基金
Digitization TCN Collaborative Research: North American Lichens and Bryophytes: Sensitive Indicators of Environmental Quality and Change
数字化 TCN 合作研究:北美地衣和苔藓植物:环境质量和变化的敏感指标
- 批准号:
1115026 - 财政年份:2011
- 资助金额:
$ 53.27万 - 项目类别:
Standard Grant
Collaborative Research: Einstein@Home
合作研究:Einstein@Home
- 批准号:
1104902 - 财政年份:2011
- 资助金额:
$ 53.27万 - 项目类别:
Continuing Grant
Development and support of BOINC and Einstein@Home
BOINC 和 Einstein@Home 的开发和支持
- 批准号:
0555655 - 财政年份:2006
- 资助金额:
$ 53.27万 - 项目类别:
Standard Grant
A Moss Flora of Central America, Part 4
中美洲的苔藓植物区系,第 4 部分
- 批准号:
0516013 - 财政年份:2005
- 资助金额:
$ 53.27万 - 项目类别:
Standard Grant
A Moss Flora of Central America, Part 3
中美洲的苔藓植物区系,第 3 部分
- 批准号:
0072433 - 财政年份:2000
- 资助金额:
$ 53.27万 - 项目类别:
Standard Grant
Development of a high-capacity data analysis system for LIGO gravitational wave detection
开发用于LIGO引力波探测的大容量数据分析系统
- 批准号:
0079683 - 财政年份:2000
- 资助金额:
$ 53.27万 - 项目类别:
Standard Grant
Gravitational Wave Data Analysis For LIGO
LIGO 引力波数据分析
- 批准号:
0071028 - 财政年份:2000
- 资助金额:
$ 53.27万 - 项目类别:
Continuing Grant
Data Analysis Tools, Techniques, and Algorithms for Gravitational Wave Detectors
引力波探测器的数据分析工具、技术和算法
- 批准号:
9728704 - 财政年份:1998
- 资助金额:
$ 53.27万 - 项目类别:
Continuing Grant
Collaborative Research: (ESH) Hydrologically Coupled Estimates of Decadal to Millennial Climate Variability During the Holocene and Late Pleistocene: Estancia Basin
合作研究:(ESH)全新世和晚更新世期间十年至千年气候变化的水文耦合估计:埃斯坦西亚盆地
- 批准号:
9618077 - 财政年份:1997
- 资助金额:
$ 53.27万 - 项目类别:
Continuing Grant
Classical and Quantum Gravitation and Cosmology
经典和量子引力和宇宙学
- 批准号:
9507740 - 财政年份:1995
- 资助金额:
$ 53.27万 - 项目类别:
Continuing Grant
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