Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars
We studied the effects of the Lorentz invariance violation on the rotation of neutron stars (NSs) in the minimal gravitational Standard-Model Extension framework, and calculated the quadrupole radiation generated by them. Aiming at testing Lorentz invariance with observations of continuous gravitati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Galaxies |
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| Online Access: | https://www.mdpi.com/2075-4434/9/1/12 |
| _version_ | 1797406031189377024 |
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| author | Rui Xu Yong Gao Lijing Shao |
| author_facet | Rui Xu Yong Gao Lijing Shao |
| author_sort | Rui Xu |
| collection | DOAJ |
| description | We studied the effects of the Lorentz invariance violation on the rotation of neutron stars (NSs) in the minimal gravitational Standard-Model Extension framework, and calculated the quadrupole radiation generated by them. Aiming at testing Lorentz invariance with observations of continuous gravitational waves (GWs) from rotating NSs in the future, we compared the GW spectra of a rotating ellipsoidal NS under Lorentz-violating gravity with those of a Lorentz-invariant one. The former were found to possess frequency components higher than the second harmonic, which does not happen for the latter, indicating those higher frequency components to be potential signatures of Lorentz violation in continuous GW spectra of rotating NSs. |
| first_indexed | 2024-03-09T03:18:51Z |
| format | Article |
| id | doaj.art-5a9a351fec3a4be7834e0a14d39a9787 |
| institution | Directory Open Access Journal |
| issn | 2075-4434 |
| language | English |
| last_indexed | 2024-03-09T03:18:51Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Galaxies |
| spelling | doaj.art-5a9a351fec3a4be7834e0a14d39a97872023-12-03T15:12:35ZengMDPI AGGalaxies2075-44342021-01-01911210.3390/galaxies9010012Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron StarsRui Xu0Yong Gao1Lijing Shao2Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, ChinaKavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, ChinaKavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, ChinaWe studied the effects of the Lorentz invariance violation on the rotation of neutron stars (NSs) in the minimal gravitational Standard-Model Extension framework, and calculated the quadrupole radiation generated by them. Aiming at testing Lorentz invariance with observations of continuous gravitational waves (GWs) from rotating NSs in the future, we compared the GW spectra of a rotating ellipsoidal NS under Lorentz-violating gravity with those of a Lorentz-invariant one. The former were found to possess frequency components higher than the second harmonic, which does not happen for the latter, indicating those higher frequency components to be potential signatures of Lorentz violation in continuous GW spectra of rotating NSs.https://www.mdpi.com/2075-4434/9/1/12Lorentz violationStandard-Model Extension |
| spellingShingle | Rui Xu Yong Gao Lijing Shao Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars Galaxies Lorentz violation Standard-Model Extension |
| title | Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars |
| title_full | Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars |
| title_fullStr | Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars |
| title_full_unstemmed | Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars |
| title_short | Signatures of Lorentz Violation in Continuous Gravitational-Wave Spectra of Ellipsoidal Neutron Stars |
| title_sort | signatures of lorentz violation in continuous gravitational wave spectra of ellipsoidal neutron stars |
| topic | Lorentz violation Standard-Model Extension |
| url | https://www.mdpi.com/2075-4434/9/1/12 |
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