Impact of dark matter halo on black hole: Thermodynamical properties and photons motion
This paper investigates the thermodynamic properties of a Schwarzschild black hole (BH) surrounded by a dark matter (DM) halo, modeled using a Dehnen-type density profile. Specifically, we analyze the influence of the halo's core density ρs and scale radius rs on key thermodynamic quantities, i...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Nuclear Physics B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321325002780 |
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| author | Abdelhakim Benkrane Djamel Eddine Zenkhri |
| author_facet | Abdelhakim Benkrane Djamel Eddine Zenkhri |
| author_sort | Abdelhakim Benkrane |
| collection | DOAJ |
| description | This paper investigates the thermodynamic properties of a Schwarzschild black hole (BH) surrounded by a dark matter (DM) halo, modeled using a Dehnen-type density profile. Specifically, we analyze the influence of the halo's core density ρs and scale radius rs on key thermodynamic quantities, including the black hole's mass, temperature, heat capacity, entropy, and Gibbs free energy. Our results show that the presence of dark matter introduces notable modifications to the black hole's thermodynamics while preserving the fundamental entropy-area relation. Additionally, we examine the effects of the DM halo on the radius of circular photon orbits, the black hole's shadow radius, and the energy emission rate. |
| format | Article |
| id | doaj-art-df2258e5b0d64989b55f1a01b7b9dc80 |
| institution | Kabale University |
| issn | 0550-3213 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj-art-df2258e5b0d64989b55f1a01b7b9dc802025-08-20T04:01:48ZengElsevierNuclear Physics B0550-32132025-09-01101811706910.1016/j.nuclphysb.2025.117069Impact of dark matter halo on black hole: Thermodynamical properties and photons motionAbdelhakim Benkrane0Djamel Eddine Zenkhri1Corresponding author.; Université Kasdi Merbah Ouargla, Laboratoire LRPPS, Ouargla 30000, AlgeriaUniversité Kasdi Merbah Ouargla, Laboratoire LRPPS, Ouargla 30000, AlgeriaThis paper investigates the thermodynamic properties of a Schwarzschild black hole (BH) surrounded by a dark matter (DM) halo, modeled using a Dehnen-type density profile. Specifically, we analyze the influence of the halo's core density ρs and scale radius rs on key thermodynamic quantities, including the black hole's mass, temperature, heat capacity, entropy, and Gibbs free energy. Our results show that the presence of dark matter introduces notable modifications to the black hole's thermodynamics while preserving the fundamental entropy-area relation. Additionally, we examine the effects of the DM halo on the radius of circular photon orbits, the black hole's shadow radius, and the energy emission rate.http://www.sciencedirect.com/science/article/pii/S0550321325002780DM haloThermodynamic propertiesDehnen-type profileSchwarzschild BHBH shadowEnergy emission rate |
| spellingShingle | Abdelhakim Benkrane Djamel Eddine Zenkhri Impact of dark matter halo on black hole: Thermodynamical properties and photons motion Nuclear Physics B DM halo Thermodynamic properties Dehnen-type profile Schwarzschild BH BH shadow Energy emission rate |
| title | Impact of dark matter halo on black hole: Thermodynamical properties and photons motion |
| title_full | Impact of dark matter halo on black hole: Thermodynamical properties and photons motion |
| title_fullStr | Impact of dark matter halo on black hole: Thermodynamical properties and photons motion |
| title_full_unstemmed | Impact of dark matter halo on black hole: Thermodynamical properties and photons motion |
| title_short | Impact of dark matter halo on black hole: Thermodynamical properties and photons motion |
| title_sort | impact of dark matter halo on black hole thermodynamical properties and photons motion |
| topic | DM halo Thermodynamic properties Dehnen-type profile Schwarzschild BH BH shadow Energy emission rate |
| url | http://www.sciencedirect.com/science/article/pii/S0550321325002780 |
| work_keys_str_mv | AT abdelhakimbenkrane impactofdarkmatterhaloonblackholethermodynamicalpropertiesandphotonsmotion AT djameleddinezenkhri impactofdarkmatterhaloonblackholethermodynamicalpropertiesandphotonsmotion |