Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric.
In this article, a class of static configurations for stellar equilibrium in relativistic charged spheres with anisotropic fluid is studied. The Buchdahl ansatz is employed to solve the Einstein-Maxwell field equations, which govern the behavior of charged, relativistic stellar objects. The matter d...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2025-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0321111 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849309919878053888 |
|---|---|
| author | A Zahra S A Mardan Sana Saleem Muhammad Bilal Riaz Tomas Kozubek |
| author_facet | A Zahra S A Mardan Sana Saleem Muhammad Bilal Riaz Tomas Kozubek |
| author_sort | A Zahra |
| collection | DOAJ |
| description | In this article, a class of static configurations for stellar equilibrium in relativistic charged spheres with anisotropic fluid is studied. The Buchdahl ansatz is employed to solve the Einstein-Maxwell field equations, which govern the behavior of charged, relativistic stellar objects. The matter distribution within the charged sphere is shown to satisfy all the necessary energy conditions, including the hydrostatic equilibrium condition. Several compact objects, such as GW 190814, PSR J0952-0607, PSR J0030+0451, PSR J0740+6620, GW 170817, PSR J1614-2230, PSR J2215+5135, and 4U 1608-52, are discussed to predict their masses and radii. These predictions are crucial for understanding the properties of compact stars, including neutron stars and possibly exotic stars. The physical properties of the charged sphere are examined, including mass, surface redshift, adiabatic index, and the speed of sound. The solutions are presented graphically, illustrating the structure of the stars. The results demonstrate that the maximum density and pressure occur at the center of the star, and these quantities are continuous and well-behaved throughout the star's interior, avoiding singularities. These features offer strong support for the physical viability of the model, suggesting that the Buchdahl ansatz provides a realistic description of compact stars with electric charge and anisotropy. |
| format | Article |
| id | doaj-art-7fa0a76b29644bc88f6a8c2f0d117de8 |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-7fa0a76b29644bc88f6a8c2f0d117de82025-08-20T03:53:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01205e032111110.1371/journal.pone.0321111Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric.A ZahraS A MardanSana SaleemMuhammad Bilal RiazTomas KozubekIn this article, a class of static configurations for stellar equilibrium in relativistic charged spheres with anisotropic fluid is studied. The Buchdahl ansatz is employed to solve the Einstein-Maxwell field equations, which govern the behavior of charged, relativistic stellar objects. The matter distribution within the charged sphere is shown to satisfy all the necessary energy conditions, including the hydrostatic equilibrium condition. Several compact objects, such as GW 190814, PSR J0952-0607, PSR J0030+0451, PSR J0740+6620, GW 170817, PSR J1614-2230, PSR J2215+5135, and 4U 1608-52, are discussed to predict their masses and radii. These predictions are crucial for understanding the properties of compact stars, including neutron stars and possibly exotic stars. The physical properties of the charged sphere are examined, including mass, surface redshift, adiabatic index, and the speed of sound. The solutions are presented graphically, illustrating the structure of the stars. The results demonstrate that the maximum density and pressure occur at the center of the star, and these quantities are continuous and well-behaved throughout the star's interior, avoiding singularities. These features offer strong support for the physical viability of the model, suggesting that the Buchdahl ansatz provides a realistic description of compact stars with electric charge and anisotropy.https://doi.org/10.1371/journal.pone.0321111 |
| spellingShingle | A Zahra S A Mardan Sana Saleem Muhammad Bilal Riaz Tomas Kozubek Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric. PLoS ONE |
| title | Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric. |
| title_full | Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric. |
| title_fullStr | Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric. |
| title_full_unstemmed | Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric. |
| title_short | Estimation of mass and radii for charged compact objects using a modified Chaplygin equation of state in the Buchdahl-I metric. |
| title_sort | estimation of mass and radii for charged compact objects using a modified chaplygin equation of state in the buchdahl i metric |
| url | https://doi.org/10.1371/journal.pone.0321111 |
| work_keys_str_mv | AT azahra estimationofmassandradiiforchargedcompactobjectsusingamodifiedchaplyginequationofstateinthebuchdahlimetric AT samardan estimationofmassandradiiforchargedcompactobjectsusingamodifiedchaplyginequationofstateinthebuchdahlimetric AT sanasaleem estimationofmassandradiiforchargedcompactobjectsusingamodifiedchaplyginequationofstateinthebuchdahlimetric AT muhammadbilalriaz estimationofmassandradiiforchargedcompactobjectsusingamodifiedchaplyginequationofstateinthebuchdahlimetric AT tomaskozubek estimationofmassandradiiforchargedcompactobjectsusingamodifiedchaplyginequationofstateinthebuchdahlimetric |