https://doi.org/10.1140/epjc/s10052-024-13385-2
Regular Article
Gravitational wave asteroseismology of charged strange stars in the Cowling approximation: the fluid pulsation modes
1
Departamento de Ciencias, Universidad Privada del Norte, Avenida el Sol 461 San Juan de Lurigancho, 15434, Lima, Peru
2
Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Avenida Venezuela s/n Cercado de Lima, 15081, Lima, Peru
3
Departamento de Física, Instituto Tecnológico de Aeronáutica, 12228-900, São José dos Campos, SP, Brazil
4
Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud, 150 URCA, CEP 22290-180, Rio de Janeiro, RJ, Brazil
5
Universidade Estadual da Região Tocantina do Maranhão, UEMASUL, Centro de Ciências Exatas, Naturais e Tecnológicas, CEP 65901-480, Imperatriz, MA, Brazil
6
Universidade Federal do Maranhão, UFMA, Departamento de Física-CCET, Campus Universitário do Bacanga, CEP 65080-805, São Luís, MA, Brazil
Received:
24
June
2024
Accepted:
15
September
2024
Published online:
9
October
2024
In this work we study, within the framework of Cowling approximation, the effect of the electric charge on the gravitational wave frequency of fluid oscillation modes of strange quark stars. For this purpose, the dense matter of the stellar fluid is described by the MIT bag model equation of state (EoS), while for the electric charge profile, we consider that the electric charge density is proportional to the energy density. We find that the gravitational wave frequencies change with the increment of electric charge; these effects are more noticeable at higher total mass values. We obtain that the f-mode is very sensitive to the change in the electric charge of the star. Furthermore, in the case of the 
mode, the effect of the electric charge is not very significant. Our results reveal that the study of the fundamental pulsation mode of an electrically charged compact star is very important in distinguishing whether compact stars could contain electric charge. We also employ another electric charge distribution profile that follows a power law, and it is found that the f-mode change is more noticeable than the -mode when the electric charge is incremented.
© The Author(s) 2024
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Funded by SCOAP3.
