Impact of a variable cosmological constant on stellar matter configurations in Finch-Skea spacetime.
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| Title: | Impact of a variable cosmological constant on stellar matter configurations in Finch-Skea spacetime. |
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| Authors: | Ilyas, M.1 (AUTHOR) ilyas_mia@yahoo.com, Maha2 (AUTHOR) maha.official00@gmail.com, Nawaz, Salma1 (AUTHOR) salma_nawaz53@yahoo.com, Sher, Falak3 (AUTHOR) falaks2@illinois.edu, Khan, Fawad1 (AUTHOR) fawad.ccms@gmail.com |
| Source: | Astrophysics & Space Science. May2025, Vol. 370 Issue 5, p1-11. 11p. |
| Subjects: | Stellar structure, Cosmological constant, Compact objects (Astronomy), Stars, Spacetime |
| Abstract: | In this study, a variable cosmological constant model is created for anisotropic star structures, which satisfies the remaining physical requirements, and validates the required energy conditions (Ecs), and TOV equations. First, the Finch-Skea spacetime solution is taken into account as a static spherically symmetric metric. Moreover, external Schwarzschild geometry is taken into account to correlate our internal stellar structure and determine the values of the constants used in the Finch-Skea spacetime solution. Finally, in this paper, multiple aspects are discussed, such as the radius, compactness, stresses, stability, density profile, and masses under the variable cosmological constant model in f (R , T) gravity for various stars. [ABSTRACT FROM AUTHOR] |
| Copyright of Astrophysics & Space Science 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 186046460 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Impact of a variable cosmological constant on stellar matter configurations in Finch-Skea spacetime. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ilyas%2C+M%2E%22">Ilyas, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ilyas_mia@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Maha%22">Maha</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> maha.official00@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Nawaz%2C+Salma%22">Nawaz, Salma</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> salma_nawaz53@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Sher%2C+Falak%22">Sher, Falak</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> falaks2@illinois.edu</i><br /><searchLink fieldCode="AR" term="%22Khan%2C+Fawad%22">Khan, Fawad</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fawad.ccms@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Astrophysics+%26+Space+Science%22">Astrophysics & Space Science</searchLink>. May2025, Vol. 370 Issue 5, p1-11. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Stellar+structure%22">Stellar structure</searchLink><br /><searchLink fieldCode="DE" term="%22Cosmological+constant%22">Cosmological constant</searchLink><br /><searchLink fieldCode="DE" term="%22Compact+objects+%28Astronomy%29%22">Compact objects (Astronomy)</searchLink><br /><searchLink fieldCode="DE" term="%22Stars%22">Stars</searchLink><br /><searchLink fieldCode="DE" term="%22Spacetime%22">Spacetime</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this study, a variable cosmological constant model is created for anisotropic star structures, which satisfies the remaining physical requirements, and validates the required energy conditions (Ecs), and TOV equations. First, the Finch-Skea spacetime solution is taken into account as a static spherically symmetric metric. Moreover, external Schwarzschild geometry is taken into account to correlate our internal stellar structure and determine the values of the constants used in the Finch-Skea spacetime solution. Finally, in this paper, multiple aspects are discussed, such as the radius, compactness, stresses, stability, density profile, and masses under the variable cosmological constant model in f (R , T) gravity for various stars. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Astrophysics & Space Science 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10509-025-04435-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 1 Subjects: – SubjectFull: Stellar structure Type: general – SubjectFull: Cosmological constant Type: general – SubjectFull: Compact objects (Astronomy) Type: general – SubjectFull: Stars Type: general – SubjectFull: Spacetime Type: general Titles: – TitleFull: Impact of a variable cosmological constant on stellar matter configurations in Finch-Skea spacetime. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ilyas, M. – PersonEntity: Name: NameFull: Maha – PersonEntity: Name: NameFull: Nawaz, Salma – PersonEntity: Name: NameFull: Sher, Falak – PersonEntity: Name: NameFull: Khan, Fawad IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 0004640X Numbering: – Type: volume Value: 370 – Type: issue Value: 5 Titles: – TitleFull: Astrophysics & Space Science Type: main |
| ResultId | 1 |
