Physics and Astrophysics of Compact Binaries

致密双星的物理学和天体物理学

• 批准号: 1841464
• 负责人: Emanuele Berti
• 金额: $ 19.79万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-07-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1841464&HistoricalAwards=false
• 关键词: Physics; Astrophysics; Compact; Binaries

In September 2015 Advanced LIGO made the first detection of the gravitational waves emitted from the merger of two black holes. In the near future, a network of Earth-based and space-based gravitational-wave detectors will observe binary systems composed of black holes and/or neutron stars over a wide range of masses and mass ratios. To realize the groundbreaking potential of gravitational-wave astronomy we must go beyond detection, extracting as much information as possible about the physics and astrophysics of the sources. This is the main theme of this project, that will study how Earth-based and space-based detectors can constrain the astrophysics of binary formation and further our understanding of strong-field gravitational physics. This award will support the gravitational physics group at the University of Mississippi, a leading research center located in a geographically and economically disadvantaged region, where engagement in the basic sciences is below national average. The project will strengthen collaborations between the gravitational physics community and the larger astrophysics community at a crucial time for the nascent field of gravitational-wave astronomy. The PI will train students and a postdoc in a highly interdisciplinary field that requires expertise in general relativity, astrophysics, data analysis and high-energy physics. The students and postdoc will benefit from interactions with a large international network of world-leading experts in gravitational physics.The PI will study the astrophysical information that can be extracted from the spin-induced precession of black-hole binaries; explore the possibility to constrain binary formation scenarios using Earth-based and space-based gravitational wave detectors; study ultra-relativistic black-hole collisions as "numerical experiments" probing the limits of Einstein's theory; investigate the problems of absorption, scattering and superradiance in black-hole physics; and study whether compact objects can be used to reveal possible strong-field deviations from the predictions of general relativity. The long-term goals of this proposal are: (1) to explore the scientific payoff of the first gravitational wave observations: what can we learn about fundamental gravitational physics, and how will compact binary detections contribute to our understanding of the Universe? (2) to improve our theoretical understanding of compact objects, whether isolated or in binaries, in general relativity and in modified theories of gravity. The PI's group is part of the European Union-funded Research and Innovation Staff Exchange (RISE) Action "Strong Gravity and High-Energy Physics" (2015- 2020), which includes 8 nodes in Europe, the United States, Canada and Japan. This network will ensure that the students and postdocs funded by this proposal will be trained in a vibrant international environment.

2015年9月，Advanced Ligo首次发现了从两个黑洞的合并中发出的引力波。在不久的将来，基于地球和空间的重力波检测器网络将观察到由黑洞和/或中子星组成的二进制系统，这些系统在众多的质量和质量比。为了实现引力波天文学的开创性潜力，我们必须超越检测，从而提取有关来源物理和天体物理学的尽可能多的信息。这是该项目的主要主题，它将研究基于地球和基于空间的探测器如何限制二元形成的天体物理学，并进一步了解我们对强场引力物理学的理解。该奖项将支持密西西比大学的重力物理小组，该研究中心位于地理和经济上处于弱势群体的领先研究中心，基础科学的参与低于全国平均水平。该项目将加强引力天文学中新生领域的关键时刻，重力物理界与较大的天体物理学界之间的合作。 PI将在高度跨学科的领域中培训学生和博士后，该领域需要一般相对论，天体物理学，数据分析和高能物理学的专业知识。学生和博士后将受益于与重力物理学的大型国际领先专家的互动。PI将研究可以从黑洞二进制动物的自旋诱导的进动中提取的天体物理信息。探索使用基于地球和基于空间的重力波检测器来限制二元形成场景的可能性；研究超友善的黑洞碰撞作为“数值实验”，以探测爱因斯坦理论的局限性。研究黑洞物理学中吸收，散射和超高的问题；并研究是否可以使用紧凑型物体来揭示与一般相对性预测的强大偏差。该提案的长期目标是：（1）探索第一个引力波观察的科学回报：我们对基本引力物理学有什么了解，以及紧凑型二进制检测将如何有助于我们对宇宙的理解？ （2）在一般相对论和重力理论中，无论是孤立的还是二进制的，无论是孤立的还是二进制的。 PI的小组是欧盟资助的研究与创新人员交流（RISE）行动的一部分，“强力和高能物理学”（2015- 2020年），其中包括欧洲，美国，美国，加拿大和日本的8个节点。该网络将确保该提案资助的学生和博士后将在充满活力的国际环境中进行培训。

项目成果

Parametrized black hole quasinormal ringdown. II. Coupled equations and quadratic corrections for nonrotating black holes

参数化黑洞拟正规振铃。

• DOI: 10.1103/physrevd.100.044061
• 发表时间: 2019
• 期刊: Physical Review D
• 影响因子: 5
• 作者: McManus, Ryan;Berti, Emanuele;Macedo, Caio F. B.;Kimura, Masashi;Maselli, Andrea;Cardoso, Vitor
• 通讯作者: Cardoso, Vitor

On the possibility of detecting ultrashort period exoplanets with LISA

• DOI: 10.1093/mnrasl/sly208
• 发表时间: 2018-08
• 期刊: Monthly Notices of the Royal Astronomical Society: Letters
• 作者: Ka-wah Wong;E. Berti;W. Gabella;K. Holley-Bockelmann

Self-interactions and spontaneous black hole scalarization

• DOI: 10.1103/physrevd.99.104041
• 发表时间: 2019-03
• 期刊: Physical Review D
• 影响因子: 5
• 作者: C. F. Macedo;Jeremy Sakstein;E. Berti;L. Gualtieri;Hector O. Silva;T. Sotiriou

Accretion in strong field gravity with eXTP

使用 eXTP 进行强重力场吸积

• DOI: 10.1007/s11433-018-9297-0
• 发表时间: 2019
• 期刊: Mechanics & Astronomy
• 作者: Rosa, Alessandra De;Uttley, Phil;Gou, LiJun;Liu, Yuan;Bambi, Cosimo;Barret, Didier;Belloni, Tomaso;Berti, Emanuele;Bianchi, Stefano;Caiazzo, Ilaria
• 通讯作者: Caiazzo, Ilaria

Multimode black hole spectroscopy

• DOI: 10.1103/physrevd.99.024005
• 发表时间: 2019-01-02
• 期刊: PHYSICAL REVIEW D
• 影响因子: 5
• 作者: Baibhav, Vishal;Berti, Emanuele
• 通讯作者: Berti, Emanuele