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Exciting Modes due to the Aberration of Gravitational Waves: Measurability for Extreme-Mass-Ratio Inspirals
Torres-Orjuela, Alejandro1,2; Seoane, Pau Amaro2,3,4,5,6; Xuan, Zeyuan7; Chua, Alvin J. K.8,9; Rosell, Mara J. B.10; Chen, Xian1,2
2021-07-23
Source PublicationPHYSICAL REVIEW LETTERS
ISSN0031-9007
Volume127Issue:4Pages:6
AbstractGravitational waves from a source moving relative to us can suffer from special-relativistic effects such as aberration. The required velocities for these to be significant are on the order of 1000 km s(-1). This value corresponds to the velocity dispersion that one finds in clusters of galaxies. Hence, we expect a large number of gravitational-wave sources to have such effects imprinted in their signals. In particular, the signal from a moving source will have its higher modes excited, i.e., (3,3) and beyond. We derive expressions describing this effect and study its measurability for the specific case of a circular, nonspinning extreme-mass-ratio inspiral. We find that the excitation of higher modes by a peculiar velocity of 1000 km s(-1) is detectable for such inspirals with signal-to-noise ratios of greater than or similar to 20. Using a Fisher matrix analysis, we show that the velocity of the source can be measured to a precision of just a few percent for a signal-to-noise ratio of 100. If the motion of the source is ignored, parameter estimates could be biased, e.g., the estimated masses of the components through a Doppler shift. Conversely, by including this effect in waveform models, we could measure the velocity dispersion of clusters of galaxies at distances inaccessible to light.
DOI10.1103/PhysRevLett.127.041102
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China[11721303] ; National Science Foundation of China[11873022] ; National Science Foundation of China[11991053] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23040100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23010200] ; Ramon y Cajal Programme of the Ministry of Economy, Industry and Competitiveness of Spain ; COST Action GWverse[CA16104] ; National Key R&D Program of China[2016YFA0400702] ; NASA[18-LPS18-0027] ; NSF[PHY-1912578]
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000677559400005
PublisherAMER PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/58982
Collection中国科学院数学与系统科学研究院
Corresponding AuthorChen, Xian
Affiliation1.Peking Univ, Sch Phys, Astron Dept, Beijing 100871, Peoples R China
2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
3.Univ Politecn Valencia, Valencia 46022, Spain
4.Deutsch Elektronen Synchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany
5.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China
6.TU Berlin, Zentrum Astron & Astrophys, Hardenbergstr 36, D-10623 Berlin, Germany
7.Peking Univ, Sch Phys, Phys Dept, Beijing 100871, Peoples R China
8.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
9.CALTECH, Theoret Astrophys Grp, Pasadena, CA 91125 USA
10.Univ Texas Austin, Dept Phys, Theory Grp, Austin, TX 78712 USA
Recommended Citation
GB/T 7714
Torres-Orjuela, Alejandro,Seoane, Pau Amaro,Xuan, Zeyuan,et al. Exciting Modes due to the Aberration of Gravitational Waves: Measurability for Extreme-Mass-Ratio Inspirals[J]. PHYSICAL REVIEW LETTERS,2021,127(4):6.
APA Torres-Orjuela, Alejandro,Seoane, Pau Amaro,Xuan, Zeyuan,Chua, Alvin J. K.,Rosell, Mara J. B.,&Chen, Xian.(2021).Exciting Modes due to the Aberration of Gravitational Waves: Measurability for Extreme-Mass-Ratio Inspirals.PHYSICAL REVIEW LETTERS,127(4),6.
MLA Torres-Orjuela, Alejandro,et al."Exciting Modes due to the Aberration of Gravitational Waves: Measurability for Extreme-Mass-Ratio Inspirals".PHYSICAL REVIEW LETTERS 127.4(2021):6.
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