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Related papers: Strange magnetars admixed with fermionic dark matt…

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Dark matter is hypothesized to interact with ordinary matter solely through gravity and may be present in compact objects such as strange quark stars. We treat strange quark stars admixed with dark matter as two-fluid systems to investigate…

High Energy Astrophysical Phenomena · Physics 2025-04-22 Yida Yang , Chen Wu , Ji-Feng Yang

In this work, we study dark matter (DM) admixed strange quark stars exploring the different possibilities about the nature of the DM and their effects on the macroscopic properties of strange stars, such as maximum masses, radii, as well…

High Energy Astrophysical Phenomena · Physics 2023-05-22 Luiz L. Lopes , H. C. Das

In this work, we explore the possible scenario of strange stars admixed with fermionic or bosonic dark matter. For the description of the ``visible'' sector, we use a specific phenomenological quark model that takes into account in-medium…

High Energy Astrophysical Phenomena · Physics 2025-04-29 Isabella Marzola , Everson H. Rodrigues , Anderson F. Coelho , Odilon Lourenço

We investigated compact stars consisting of cold quark matter and fermionic dark matter treated as two admixed fluids. We computed the stellar structures and fundamental radial oscillation frequencies for different masses of the dark…

High Energy Physics - Phenomenology · Physics 2022-01-19 José C. Jiménez , Eduardo S. Fraga

Compact stars serve as natural systems where matter exists at densities far beyond those achievable in laboratory experiments. Among them, magnetars are expected to possess interior magnetic fields that may reach values of the order of…

High Energy Astrophysical Phenomena · Physics 2026-05-01 Monika Sinha , Vivek Baruah Thapa

In the present work we study the gravitational effects of condensed dark matter on strange stars. We consider self-interacting dark matter particles with properties consistent with current observational constraints, and dark matter inside…

General Relativity and Quantum Cosmology · Physics 2017-08-02 Grigoris Panotopoulos , Ilidio Lopes

Strange quark matter could be found in the core of neutron stars or forming strange quark stars. As is well known, these astrophysical objects are endowed with strong magnetic fields which affect the microscopic properties of matter and…

Astrophysics · Physics 2008-12-18 R. Gonzalez Felipe , A. Perez Martinez , H. Perez Rojas , M. Orsaria

We investigate the thermodynamic properties of strange quark matter under the strong magnetic field in the framework of the MIT bag model in two cases of bag constants. We consider two cases of the magnetic field, the uniform magnetic field…

Nuclear Theory · Physics 2020-04-10 Fatemeh Kayanikhoo , Kazem Naficy , Gholam Hossein Bordbar

Neutron stars could contain a mixture of ordinary nuclear matter and dark matter, such that dark matter could influence observable properties of the star, such as its mass and radius. We study these dark matter admixed neutron stars for two…

General Relativity and Quantum Cosmology · Physics 2021-11-09 Ben Kain

Compact stars consisting of massless quark matter and fermionic dark matter are studied by solving the Tolman-Oppenheimer-Volkoff equations for two fluids separately. Dark matter is further investigated by incorporating inter-fermionic…

High Energy Astrophysical Phenomena · Physics 2016-04-27 Payel Mukhopadhyay , Juregen Schaffner-Bielich

We study the effect of a magnetic field on the interacting quark matter and apply to strange star. We considere the low temperature approximation to strange matter. We find that the interacting strange quark matter is more stable compare to…

Astrophysics · Physics 2008-02-03 Pradip K Sahu

We study the effects of dark matter on the structural properties of neutron stars. In particular we investigate how the presence of a dark matter component influences the mass-radius relation, the value of the maximum mass of a neutron star…

High Energy Astrophysical Phenomena · Physics 2025-05-29 Domenico Scordino , Ignazio Bombaci

The effects of strong magnetic fields on the deconfinement phase transition expected to take place in the interior of massive neutron stars are studied in detail for the first time. For hadronic matter, the very general density-dependent…

Nuclear Theory · Physics 2023-01-26 Ishfaq A. Rather , Asloob A. Rather , V. Dexheimer , Ilídio Lopes , A. A. Usmani , S. K. Patra

The properties of dark matter admixed strange quark stars are investigated in the Starobinsky model of modified gravity. For quark matter we assume the MIT bag model, while self-interacting dark matter inside the star is modelled as a…

General Relativity and Quantum Cosmology · Physics 2018-02-14 Ilidio Lopes , Grigoris Panotopoulos

In this work we investigate the tidal deformability of a neutron star admixed with dark matter, modeled as a massive, self-interacting, complex scalar field. We derive the equations to compute the tidal deformability of the full…

General Relativity and Quantum Cosmology · Physics 2023-09-25 Robin Fynn Diedrichs , Niklas Becker , Cédric Jockel , Jan-Erik Christian , Laura Sagunski , Jürgen Schaffner-Bielich

In this study, we investigate the impact of dark matter on the structure and deformation of magnetars. We assume a perturbative approach for the magnetic field deformation and that the dark matter only interacts gravitationally with…

High Energy Astrophysical Phenomena · Physics 2025-09-24 Asit karan , Anil Kumar , Monika Sinha , Ritam Mallick

We consider the effect of density dependent dark matter on the neutron star mass, radius, and tidal deformability. Nuclear matter (normal matter) as well as the fermionic dark matter sector is considered in a mean field model. We adopt the…

Nuclear Theory · Physics 2020-11-04 Arpan Das , Tuhin Malik , Alekha C. Nayak

Because of their extreme densities and consequently, gravitational potential, compact objects such as neutron stars can prove to be excellent captors of dark matter particles. Considering purely gravitational interactions between dark and…

High Energy Astrophysical Phenomena · Physics 2025-01-22 Pratik Thakur , Anil Kumar , Vivek Baruah Thapa , Vishal Parmar , Monika Sinha

We have discussed dynamical behavior of strange quark matter components, in particular the effects of density dependent quark mass on the equation of state of strange quark matter. Dynamical masses of quarks have been computed within…

Solar and Stellar Astrophysics · Physics 2015-06-03 G. H. Bordbar , B. Ziaei

In this paper we study radial oscillations of rotating strange stars in strong magnetic fields in the Density Dependent Quark Mass (DDQM) model. We see that increase of frequency i.e. difference in frequency of rotating and non-rotating…

Astrophysics · Physics 2007-05-23 S. Singh , N. Chandrika Devi , V. K. Gupta , Asha Gupta , J. D. Anand
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