Stable anisotropic solutions for compact stars in matter-geometry coupled theory under some specific spacetimes.
Saved in:
| Title: | Stable anisotropic solutions for compact stars in matter-geometry coupled theory under some specific spacetimes. |
|---|---|
| Authors: | Naseer, Tayyab1,2 (AUTHOR) tayyab.naseer@math.uol.edu.pk, Sharif, M.1 (AUTHOR) msharif.math@pu.edu.pk, Waqas, M.1 (AUTHOR) mw973021@gmail.com, Alessa, Nazek3 (AUTHOR) naalessa@pnu.edu.sa, Eid, Mohamed R.4 (AUTHOR) mohamed.eid@nbu.edu.sa |
| Source: | European Physical Journal C -- Particles & Fields. Sep2025, Vol. 85 Issue 9, p1-20. 20p. |
| Subjects: | Compact objects (Astronomy), Stellar structure, Gravitation, Fluids, Stability criterion, Stellar dynamics, Gravitational fields |
| Abstract: | This article examines how compact astronomical objects behave under the theoretical framework of f (R , L m , T) theory of gravity. We develop modified field equations by taking into consideration the static internal spacetime which is filled with the anisotropic fluid content. Applying two particular constraints related to the anisotropic pressure and radial metric function allows us to identify two new solutions to these gravitational equations. We obtain differential equations for both models, the integration of which yields constants that are established using matching criteria. The necessity for radial pressure to vanish at the hypersurface is also used to find these constants. Afterwards, for various values of the parameters involved in the considered modified model, we visually assess certain requirements whose fulfillment guarantees the viability of the model. For this purpose, we consider the observational data of a compact star 4U 1820-30. We deduce that both of our models meet the necessary stability and viability requirements. Notably, our study advances the understanding of compact stellar models by demonstrating how the considered theory of gravity modifies their evolutionary pattern compared to general relativity, and provides a robust framework for exploring matter-geometry coupling in future astrophysical research. [ABSTRACT FROM AUTHOR] |
| Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature 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 |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 188719738 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Stable anisotropic solutions for compact stars in matter-geometry coupled theory under some specific spacetimes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Naseer%2C+Tayyab%22">Naseer, Tayyab</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> tayyab.naseer@math.uol.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Sharif%2C+M%2E%22">Sharif, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> msharif.math@pu.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Waqas%2C+M%2E%22">Waqas, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mw973021@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Alessa%2C+Nazek%22">Alessa, Nazek</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> naalessa@pnu.edu.sa</i><br /><searchLink fieldCode="AR" term="%22Eid%2C+Mohamed+R%2E%22">Eid, Mohamed R.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> mohamed.eid@nbu.edu.sa</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. Sep2025, Vol. 85 Issue 9, p1-20. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Compact+objects+%28Astronomy%29%22">Compact objects (Astronomy)</searchLink><br /><searchLink fieldCode="DE" term="%22Stellar+structure%22">Stellar structure</searchLink><br /><searchLink fieldCode="DE" term="%22Gravitation%22">Gravitation</searchLink><br /><searchLink fieldCode="DE" term="%22Fluids%22">Fluids</searchLink><br /><searchLink fieldCode="DE" term="%22Stability+criterion%22">Stability criterion</searchLink><br /><searchLink fieldCode="DE" term="%22Stellar+dynamics%22">Stellar dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Gravitational+fields%22">Gravitational fields</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This article examines how compact astronomical objects behave under the theoretical framework of f (R , L m , T) theory of gravity. We develop modified field equations by taking into consideration the static internal spacetime which is filled with the anisotropic fluid content. Applying two particular constraints related to the anisotropic pressure and radial metric function allows us to identify two new solutions to these gravitational equations. We obtain differential equations for both models, the integration of which yields constants that are established using matching criteria. The necessity for radial pressure to vanish at the hypersurface is also used to find these constants. Afterwards, for various values of the parameters involved in the considered modified model, we visually assess certain requirements whose fulfillment guarantees the viability of the model. For this purpose, we consider the observational data of a compact star 4U 1820-30. We deduce that both of our models meet the necessary stability and viability requirements. Notably, our study advances the understanding of compact stellar models by demonstrating how the considered theory of gravity modifies their evolutionary pattern compared to general relativity, and provides a robust framework for exploring matter-geometry coupling in future astrophysical research. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=188719738 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1140/epjc/s10052-025-14698-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 1 Subjects: – SubjectFull: Compact objects (Astronomy) Type: general – SubjectFull: Stellar structure Type: general – SubjectFull: Gravitation Type: general – SubjectFull: Fluids Type: general – SubjectFull: Stability criterion Type: general – SubjectFull: Stellar dynamics Type: general – SubjectFull: Gravitational fields Type: general Titles: – TitleFull: Stable anisotropic solutions for compact stars in matter-geometry coupled theory under some specific spacetimes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Naseer, Tayyab – PersonEntity: Name: NameFull: Sharif, M. – PersonEntity: Name: NameFull: Waqas, M. – PersonEntity: Name: NameFull: Alessa, Nazek – PersonEntity: Name: NameFull: Eid, Mohamed R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 14346044 Numbering: – Type: volume Value: 85 – Type: issue Value: 9 Titles: – TitleFull: European Physical Journal C -- Particles & Fields Type: main |
| ResultId | 1 |
