An All-Sky Radio Survey for Millisecond Pulsars, Exotic Binary Systems, and Transients
针对毫秒脉冲星、奇异双星系统和瞬变的全天射电巡天
基本信息
- 批准号:1211701
- 负责人:
- 金额:$ 45.37万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-09-01 至 2017-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award will support an ambitious high time resolution survey of the entire sky visible with the Green Bank Telescope. The primary science driver for this experiment is to discover millisecond pulsars to add to the NANOGrav (North American Nanohertz Observatory for Gravitational Waves) pulsar timing array for gravitational wave detection. The survey will also discover exotic binary systems, transient pulsars, and other classes of transient sources. Roughly 20% of the sky has already been covered in the first phase of this survey, with 11 new pulsars discovered through processing 5% of these data. Simulations suggest that the full survey will discover 50?100 millisecond pulsars and about 200 normal pulsars.The direct detection of gravitational waves is one of the foremost goals of modern physics and may offer unique insights into galaxy formation, the early stages of the universe, and even cosmic strings. Finding new, high-precision millisecond pulsars to add to pulsar timing arrays will facilitate the principal goals of this project. The survey will likely detect pulsars in exotic binary systems which will provide tests of general relativity and probe extreme density nuclear physics. The survey will be sensitive to transient signals that will permit exploration of the full range of pulsar intermittency and discover completely new astrophysical phenomena. Furthermore, all of the new pulsars discovered will be useful for improving our understanding of the properties of the nearby, local pulsar population. With support from this award, this group will create undergraduate fellowship programs at West Virginia University and the University of Virginia that will allow students to participate in survey observations, processing, and follow-up. These programs are expected to increase retention of students in science and engineering majors and offer both undergraduate and graduate students peer-mentoring opportunities.
这项奖励将支持一项雄心勃勃的高时间分辨率的整个天空的测量,用绿岸望远镜可见。这项实验的主要科学驱动力是发现毫秒脉冲星,将其添加到NANOGrav(北美引力波纳赫兹天文台)脉冲星定时阵列中,用于探测引力波。调查还将发现奇异的双星系统、瞬变脉冲星和其他类型的瞬变源。在这次调查的第一阶段,大约20%的天空已经被覆盖,通过处理其中5%的数据,发现了11颗新的脉冲星。模拟显示,这次完整的探测将发现50-100毫秒的脉冲星和大约200个正常的脉冲星。直接探测引力波是现代物理学的首要目标之一,可能为星系形成、宇宙早期甚至宇宙弦提供独特的见解。寻找新的高精度毫秒脉冲星加入脉冲星定时阵列将有助于实现该项目的主要目标。这项调查可能会探测奇异双星系统中的脉冲星,这将提供广义相对论测试和探测极端密度核物理。这项调查将对瞬变信号敏感,这些信号将允许探索脉冲星间歇的全部范围,并发现全新的天体物理现象。此外,所有新发现的脉冲星都将有助于我们更好地了解附近本地脉冲星群体的性质。在该奖项的支持下,该小组将在西弗吉尼亚大学和弗吉尼亚大学创建本科生奖学金计划,允许学生参与调查观察、处理和后续调查。这些计划预计将增加理工科专业学生的留校率,并为本科生和研究生提供同行指导机会。
项目成果
期刊论文数量(0)
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Maura McLaughlin其他文献
Peering beyond radio flashes with multi-messenger insight into FRB engines
通过多信使洞察 FRB 引擎,超越无线电闪光去窥视
- DOI:
10.1038/s41550-025-02611-w - 发表时间:
2025-07-10 - 期刊:
- 影响因子:14.300
- 作者:
Mohit Bhardwaj;Maura McLaughlin - 通讯作者:
Maura McLaughlin
Maura McLaughlin的其他文献
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{{ truncateString('Maura McLaughlin', 18)}}的其他基金
AccelNet-Implementation: The International Pulsar Timing Array
AccelNet-Implementation:国际脉冲星计时阵列
- 批准号:
2114721 - 财政年份:2022
- 资助金额:
$ 45.37万 - 项目类别:
Standard Grant
Collaborative research: Completing the most sensitive low-frequency survey for radio pulsars and transients
合作研究:完成射电脉冲星和瞬变最敏感的低频调查
- 批准号:
2009425 - 财政年份:2020
- 资助金额:
$ 45.37万 - 项目类别:
Standard Grant
IRES: Expanding the Reach of the International Pulsar Timing Array
IRES:扩大国际脉冲星计时阵列的覆盖范围
- 批准号:
1658632 - 财政年份:2017
- 资助金额:
$ 45.37万 - 项目类别:
Standard Grant
Collaborative Research: Developing STEM self-efficacy and science identities through authentic astrophysics research in online and face-to-face environments (STEM-ID)
合作研究:通过在线和面对面环境中真实的天体物理学研究来发展 STEM 自我效能和科学认同 (STEM-ID)
- 批准号:
1516512 - 财政年份:2015
- 资助金额:
$ 45.37万 - 项目类别:
Continuing Grant
The Double Pulsar: A Rare Laboratory for Relativistic Gravity and Pulsar Emission Physics
双脉冲星:相对论引力和脉冲星发射物理的罕见实验室
- 批准号:
1517003 - 财政年份:2015
- 资助金额:
$ 45.37万 - 项目类别:
Standard Grant
CRPA: Little Green Men: A Documentary Film about the Pulsar Search Collaboratory
CRPA:小绿人:一部关于脉冲星搜索合作实验室的纪录片
- 批准号:
1137082 - 财政年份:2012
- 资助金额:
$ 45.37万 - 项目类别:
Standard Grant
PIRE: An International Pulsar Timing Array for Gravitational Wave Detection
PIRE:用于引力波探测的国际脉冲星计时阵列
- 批准号:
0968296 - 财政年份:2010
- 资助金额:
$ 45.37万 - 项目类别:
Continuing Grant
Towards a Multi-Wavelength Understanding of Pulsars
对脉冲星的多波长理解
- 批准号:
0104398 - 财政年份:2001
- 资助金额:
$ 45.37万 - 项目类别:
Fellowship Award
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放大活跃星系的反馈:第一次高分辨率射电勘测
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放大活跃星系的反馈:第一次高分辨率射电勘测
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- 批准号:
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