JOURNAL ARTICLE

Spherically symmetric gravitational collapse in the background of Chaplygin gas.

  • Published In: International Journal of Geometric Methods in Modern Physics, 2026, v. 23, n. 3. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Pandey, Anjali; Kumar, Rajesh; Srivastava, Sudhir Kumar 3 of 3

Abstract

In this paper, we consider the spherically symmetric shear-free gravitational collapse in the background of Chaplygin gas as dark energy. In the interior of a star, the dark energy components are assumed to be generalized and modified Chaplygin gas. The equation of state for the generalized and modified Chaplygin gas is p = − Z ρ α and p = Y ρ − Z ρ α , where α , Y and Z are model parameters. The exterior of the star is considered to be a Schwarzschild de Sitter/anti-de Sitter metric, and discuss the junction conditions. We discuss the dynamics of singularity formation by calculating the collapsing rate of the system. We discuss the singularity formation in both forms of the Chaplygin gas case and observe that this model possesses the central singularity; also, it is found that such collapsing fluids favor the formation of black holes. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:International Journal of Geometric Methods in Modern Physics. 2026/03, Vol. 23, Issue 3, p1
  • Document Type:Article
  • Subject Area:Astronomy and Astrophysics
  • Publication Date:2026
  • ISSN:0219-8878
  • DOI:10.1142/S0219887825501749
  • Accession Number:190554626
  • Copyright Statement:Copyright of International Journal of Geometric Methods in Modern Physics 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.)

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