(Self-)Magnetized Bose–Einstein condensate stars.
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| Title: | (Self-)Magnetized Bose–Einstein condensate stars. |
|---|---|
| Authors: | Quintero Angulo, G.1 (AUTHOR) gquintero@fisica.uh.cu, Pérez Martínez, A.2 (AUTHOR) aurora@icimaf.cu, Pérez Rojas, H.2 (AUTHOR) hugo@icimaf.cu, Manreza Paret, D.1 (AUTHOR) dmanreza@fisica.uh.cu |
| Source: | International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology. Jul2019, Vol. 28 Issue 10, pN.PAG-N.PAG. 21p. |
| Subjects: | Bose-Einstein condensation, Magnetic field effects, Magnetic fields, Stellar mass, Stars, Bosons |
| Abstract: | We study magnetic field effects on the Equations-of-State (EoS) and the structure of Bose–Einstein Condensate (BEC) stars, i.e. a compact object composed by a gas of interacting spin-one bosons formed up by the pairing of two neutrons. To include the magnetic field in the thermodynamic description, we assume that particle–magnetic field and particle–particle interactions are independent. We consider two configurations for the magnetic field: one where it is constant and externally fixed, and another where it is produced by the bosons through self-magnetization. Stable configurations of self-magnetized and magnetized nonspherical BEC stars are studied using structure equations that describe axially symmetric objects. In general, the magnetized BEC stars are spheroidal, less massive and smaller than the nonmagnetic ones, being these effects more relevant at low densities. Nevertheless, star masses around two solar masses are obtained by increasing the strength of the boson–boson interaction. The inner magnetic field profiles of the self-magnetized BEC stars can be computed as a function of the equatorial radii. The values obtained for the core and surface magnetic fields are in agreement with those typically found in compact objects. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 137705961 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: (Self-)Magnetized Bose–Einstein condensate stars. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Quintero+Angulo%2C+G%2E%22">Quintero Angulo, G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> gquintero@fisica.uh.cu</i><br /><searchLink fieldCode="AR" term="%22Pérez+Martínez%2C+A%2E%22">Pérez Martínez, A.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> aurora@icimaf.cu</i><br /><searchLink fieldCode="AR" term="%22Pérez+Rojas%2C+H%2E%22">Pérez Rojas, H.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> hugo@icimaf.cu</i><br /><searchLink fieldCode="AR" term="%22Manreza+Paret%2C+D%2E%22">Manreza Paret, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dmanreza@fisica.uh.cu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Modern+Physics+D%3A+Gravitation%2C+Astrophysics+%26+Cosmology%22">International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology</searchLink>. Jul2019, Vol. 28 Issue 10, pN.PAG-N.PAG. 21p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Bose-Einstein+condensation%22">Bose-Einstein condensation</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+field+effects%22">Magnetic field effects</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Stellar+mass%22">Stellar mass</searchLink><br /><searchLink fieldCode="DE" term="%22Stars%22">Stars</searchLink><br /><searchLink fieldCode="DE" term="%22Bosons%22">Bosons</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We study magnetic field effects on the Equations-of-State (EoS) and the structure of Bose–Einstein Condensate (BEC) stars, i.e. a compact object composed by a gas of interacting spin-one bosons formed up by the pairing of two neutrons. To include the magnetic field in the thermodynamic description, we assume that particle–magnetic field and particle–particle interactions are independent. We consider two configurations for the magnetic field: one where it is constant and externally fixed, and another where it is produced by the bosons through self-magnetization. Stable configurations of self-magnetized and magnetized nonspherical BEC stars are studied using structure equations that describe axially symmetric objects. In general, the magnetized BEC stars are spheroidal, less massive and smaller than the nonmagnetic ones, being these effects more relevant at low densities. Nevertheless, star masses around two solar masses are obtained by increasing the strength of the boson–boson interaction. The inner magnetic field profiles of the self-magnetized BEC stars can be computed as a function of the equatorial radii. The values obtained for the core and surface magnetic fields are in agreement with those typically found in compact objects. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1142/S0218271819501359 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 21 StartPage: N.PAG Subjects: – SubjectFull: Bose-Einstein condensation Type: general – SubjectFull: Magnetic field effects Type: general – SubjectFull: Magnetic fields Type: general – SubjectFull: Stellar mass Type: general – SubjectFull: Stars Type: general – SubjectFull: Bosons Type: general Titles: – TitleFull: (Self-)Magnetized Bose–Einstein condensate stars. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Quintero Angulo, G. – PersonEntity: Name: NameFull: Pérez Martínez, A. – PersonEntity: Name: NameFull: Pérez Rojas, H. – PersonEntity: Name: NameFull: Manreza Paret, D. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 07 Text: Jul2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 02182718 Numbering: – Type: volume Value: 28 – Type: issue Value: 10 Titles: – TitleFull: International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology Type: main |
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