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DC Field | Value | Language |
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dc.contributor.author | Sanchis-Gual, Nicolas | pt_PT |
dc.contributor.author | Calderón Bustillo, Juan | pt_PT |
dc.contributor.author | Herdeiro, Carlos | pt_PT |
dc.contributor.author | Radu, Eugen | pt_PT |
dc.contributor.author | Font, José A. | pt_PT |
dc.contributor.author | Leong, Samson H. W. | pt_PT |
dc.contributor.author | Torres-Forné, Alejandro | pt_PT |
dc.date.accessioned | 2023-03-09T15:06:48Z | - |
dc.date.available | 2023-03-09T15:06:48Z | - |
dc.date.issued | 2022-12-15 | - |
dc.identifier.issn | 1550-7998 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/36534 | - |
dc.description.abstract | We present a systematic study of the dynamics and gravitational-wave emission of head-on collisions of spinning vector boson stars, known as Proca stars. To this aim we build a catalogue of about 800 numerical-relativity simulations of such systems. We find that the wave-like nature of bosonic stars has a large impact on the gravitational-wave emission. In particular, we show that the initial relative phase $\Delta \epsilon =\epsilon_1-\epsilon_2$ of the two complex fields forming the stars (or equivalently, the relative phase at merger) strongly impacts both the emitted gravitational-wave energy and the corresponding mode structure. This leads to a non-monotonic dependence of the emission on the frequency of the secondary star $\omega_2$, for fixed frequency $\omega_1$ of the primary. This phenomenology, which has not been found for the case of black-hole mergers, reflects the distinct ability of the Proca field to interact with itself in both constructive and destructive manners. We postulate this may serve as a smoking gun to shed light on the possible existence of these objects. | pt_PT |
dc.description.sponsorship | This work was supported by the Center for Research and Development in Mathematics and Applications (CIDMA) through the Portuguese Foundation for Science and Technology (FCT—Fundação para a Ciência e a Tecnologia), references UIDB/04106/2020 and UIDP/ 04106/2020, by national funds (OE), through FCT, I. P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/ 2016, changed by Law 57/2017, and by Projects No. PTDC/FIS-OUT/28407/2017, No. CERN/FIS-PAR/ 0027/2019, No. PTDC/FIS-AST/3041/2020, and No. CERN/FIS-PAR/0024/2021. This work has further been supported by the Spanish Agencia Estatal de Investigación (PGC2018-095984-B-I00 and PID2021- 125485NB-C21), by the Generalitat Valenciana (PROMETEO/2019/071), and by the European Union’s Horizon 2020 research and innovation (RISE) program H2020-MSCA-RISE-2017 Grant No. FunFiCO-777740. N. S.-G. acknowledges financial support by the Spanish Ministerio de Universidades, through a María Zambrano grant (ZA21-031) with reference UP2021-044, within the European Union-Next Generation EU. J. C. B. is supported by a fellowship from “la Caixa” Foundation (ID No. 100010434) and from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement No. 847648. The fellowship code is LCF/BQ/PI20/11760016. J. C. B. is also supported by the research Grant No. PID2020–118635GBI00 from the Spain-Ministerio de Ciencia e Innovación. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | American Physical Society | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04106%2F2020/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04106%2F2020/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-OUT%2F28407%2F2017/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/CERN%2FFIS-PAR%2F0027%2F2019/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-AST%2F3041%2F2020/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/CERN%2FFIS-PAR%2F0024%2F2021/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/777740/EU | pt_PT |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/847648/EU | pt_PT |
dc.rights | openAccess | pt_PT |
dc.title | Impact of the wavelike nature of Proca stars on their gravitational-wave emission | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.issue | 12 | pt_PT |
degois.publication.title | Physical Review D | pt_PT |
degois.publication.volume | 106 | pt_PT |
dc.identifier.doi | 10.1103/PhysRevD.106.124011 | pt_PT |
dc.identifier.essn | 1550-2368 | pt_PT |
dc.identifier.articlenumber | 124011 | pt_PT |
Appears in Collections: | CIDMA - Artigos DMat - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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PRD106(2022)124011.pdf | 4.47 MB | Adobe PDF | View/Open |
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