Quasiuniversal relations for generalized Skyrme stars
First proposed in 2013 by Yagi and Yunes, the quasiuniversal I-Love-Q relations consist of a set of relations between the moment of inertia, the spin-induced quadrupole moment and the electric quadrupolar tidal deformability of neutron stars which arc independent of the equation of state within an a...
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| Veröffentlicht in: | Physical review. D 2021-01, Vol.103 (2), p.1, Article 023022 |
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| creator | Adam, Christoph Garcia Martin-Caro, Alberto Huidobro, Miguel Vazquez, Ricardo Wereszczynski, Andrzej |
| description | First proposed in 2013 by Yagi and Yunes, the quasiuniversal I-Love-Q relations consist of a set of relations between the moment of inertia, the spin-induced quadrupole moment and the electric quadrupolar tidal deformability of neutron stars which arc independent of the equation of state within an accuracy of similar to 1%. In this work, we show that these relations hold for different Skyrme-based nuclear matter equation of state and also for the starlike solutions of different Einstein-BPS-Skyrme models - where BPS stands for Bogomolnyi-Prasad-Sommerfield, some of which do not even present a barotropic equation of state. Further, other quasiuniversal relations are analyzed, and, together with recent gravitational wave observations, we use them to select the generalized Skyrme model that better reproduces observations. Our results reaffirm both the universality of the I-Love-Q relations and the suitability of generalized Skyrme models to describe nuclear matter inside neutron stars. |
| doi_str_mv | 10.1103/PhysRevD.103.023022 |
| format | Article |
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D</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Adam, Christoph</au><au>Garcia Martin-Caro, Alberto</au><au>Huidobro, Miguel</au><au>Vazquez, Ricardo</au><au>Wereszczynski, Andrzej</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quasiuniversal relations for generalized Skyrme stars</atitle><jtitle>Physical review. D</jtitle><stitle>PHYS REV D</stitle><date>2021-01-22</date><risdate>2021</risdate><volume>103</volume><issue>2</issue><spage>1</spage><pages>1-</pages><artnum>023022</artnum><issn>2470-0010</issn><eissn>2470-0029</eissn><abstract>First proposed in 2013 by Yagi and Yunes, the quasiuniversal I-Love-Q relations consist of a set of relations between the moment of inertia, the spin-induced quadrupole moment and the electric quadrupolar tidal deformability of neutron stars which arc independent of the equation of state within an accuracy of similar to 1%. 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| source | American Physical Society Journals; Web of Science - Science Citation Index Expanded - 2021<img src="https://exlibris-pub.s3.amazonaws.com/fromwos-v2.jpg" /> |
| subjects | Astronomy & Astrophysics Equations of state Formability Gravitational waves Moments of inertia Neutron stars Neutrons Nuclear matter Physical Sciences Physics Physics, Particles & Fields Quadrupoles Science & Technology |
| title | Quasiuniversal relations for generalized Skyrme stars |
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