Publications

2026

Journal Articles

• Addazi, A., Belotsky, K., Beylin, V., Bikbaev, T., Chen, D., Fabrocini, F., Giagu, S., Jinklub, K., Kharakhashyan, A., Khlopov, M., Korchagin, V., Krasnov, M., Mahajan, A., Marcianò, A., Mayorov, A., Morais, A., Pasechnik, R., Said, J. L., Sopin, D., . . . Trivedi, O. (2026). Machine Learning for Multi-Messenger Probes of New Physics and Cosmology: Review and Perspective. Symmetry, 18(7), 1116. https://doi.org/10.3390/sym18071116
• Allen, M. L., Biermann, P. L., Chieffi, A., Chini, R., Frekers, D., Gergely, L. Á., Gopal-Krishna, Jaroschewski, I., Joshi, P. S., Kun, E., Maricic, S., Meli, A., Seo, E. S., & Stanev, T. (2026). Electric Discharges: Early Growth of Super-Massive Black Holes. Astroparticle Physics, 181, 103251. https://doi.org/10.1016/j.astropartphys.2026.103251
• Bhattacharya, K., Goswami, R., & Joshi, P. S. (2026). Universality and Criticality in Mass-Less Scalar Field Collapse. Classical and Quantum Gravity, 43(12), 125003. https://doi.org/10.1088/1361-6382/ae72e5
• Joshi, V., & Joshi, A. B. (2026). Thermodynamic Phase Transitions and Quantum Entropy Corrections in the Simpson-Visser Regular Black Hole. The European Physical Journal C, 86(5), 521. https://doi.org/10.1140/epjc/s10052-026-14379-7
• Trivedi, J. V., Joshi, P. S., Krishna, G., & Biermann, P. L. (2026). Astrophysical Black Holes: An Explanation for the Galaxy Quenching. Journal of High Energy Astrophysics, 53, 100597. https://doi.org/10.1016/j.jheap.2026.100597

2025

Books

• Joshi, P. S. (2025). Gnani ane Vignani. Gujarat: Gurjar Sahitya Prakashan.

Journal Articles

• Bambhaniya, P., Vyas, M. J., Joshi, P. S., & De Gouveia Dal Pino, E. M. (2025). Retrograde Precession of Relativistic Orbits and the Quest for Charged Black Holes. Physics of the Dark Universe, 48, 101949. https://doi.org/10.1016/j.dark.2025.101949
• Bidlan, A., Moniz, P., & Trivedi, O. (2025). Reconstructing Fractional Holographic Dark Energy with Scalar and Gauge Fields. European Physical Journal C, 85(5), 520. https://doi.org/10.1140/epjc/s10052-025-14238-2
• Di Valentino, E., Said, J. L., Riess, A., Pollo, A., Poulin, V., Gómez-Valent, A., Weltman, A., Palmese, A., Huang, C. D., Bruck, C. V. D., Saraf, C. S., Kuo, C., Uhlemann, C., Grandón, D., Paz, D., Eckert, D., Teixeira, E. M., Saridakis, E. N., Joshi, P. S., Colgáin, E. Ó., . . . Davari, Z. (2025). The CosmoVerse White Paper: Addressing Observational Tensions in Cosmology with Systematics and Fundamental Physics. Physics of the Dark Universe, 49, 101965. https://doi.org/10.1016/j.dark.2025.101965
• Gupta, L., Choudhury, S., Calamida, A., Johnson, C. I., & Nardiello, D. (2025). An Excess of Luminous White Dwarfs in the Peculiar Galactic Globular Cluster NGC 2808. The Astrophysical Journal, 994(1), 97. https://doi.org/10.3847/1538-4357/ae0ca6
• Joshi, P. S., & Bhattacharyya, S. (2025). Primordial Naked Singularities, Journal of Cosmology Astroparticle Physics, 2025, 034. https://doi.org/10.1088/1475-7516/2025/01/034
• Vertogradov, V., Misyura, M., & Bambhaniya, P. (2025). Influence of Primary Hair and Plasma on Intensity Distribution of Black Hole Shadows. European Physical Journal Plus, 140(1), 23. https://doi.org/10.1140/epjp/s13360-024-05933-2

2024

Books

• Malafarina, D., & Joshi, P. S. (2024). New Frontiers in Gravitational Collapse and Spacetime Singularities. Singapore: Springer.
• Trivedi, O., & Khlopov, M. (2024). Quantum Gravitational Imprints on Cosmology. Singapore: World Scientific.

Journal Articles

• Allen, M., Biermann, P., Chieffi, A., Frekers, D., Gergely, L., Harms, B., Jaroschewski, I., Joshi, P. S., Kronberg, P., Kun, E., Meli, A., Seo, E., & Stanev, T. (2024). Loaded Layer-cake Model for Cosmic Ray Interaction Around Exploding Super-giant Stars Making Black Holes. Astroparticle Physics, 161, 102976. https://doi.org/10.1016/j.astropartphys.2024.102976
• Allen, M. L., Biermann, P. L., Caramete, L. I., Chieffi, A., Chini, R., Frekers, D., Gergely, L. Á., Harms, B., Jaroschewski, I., Joshi, P. S., Kronberg, P. P., Kun, E., Meli, A., Seo, E.-S., & Stanev, T. (2024). A Two-step Strategy to Identify Episodic Sources of Gravitational Waves and High-energy Neutrinos in Starburst Galaxies. Frontiers in Astronomy and Space Sciences, 11, 1394741. https://doi.org/10.3389/fspas.2024.1394741
• Allen, M., Biermann, P. L., Chieffi, A., Chini, R., Frekers, D., Gergely, L., Harms, B., Jaroschewski, I., Joshi, P. S., Kronberg, P. P., Kun, E., Meli, A., Seo, E., & Stanev, T. (2024). Cosmic Ray Contributions from Rapidly Rotating Stellar Mass Black Holes: Cosmic Ray GeV to EeV Proton and Anti-proton Sources. Frontiers in Astronomy and Space Sciences, 11, 1386305. https://doi.org/10.3389/fspas.2024.1386305 
• Arora, D., Bambhaniya, P., Dey, D., & Joshi, P. S. (2024). Tidal Forces in the Simpson–Visser Black-bounce and Wormhole Spacetimes. Physics of the Dark Universe, 44, 101487. https://doi.org/10.1016/j.dark.2024.101487
• Azreg-Aïnou, M., Acharya, K., & Joshi, P. S. (2024). Joshi–Malafarina–Narayan Singularity in Weak Magnetic Field. European Physical Journal C, 84(5), 535. https://doi.org/10.1140/epjc/s10052-024-12905-4
• Bambhaniya, P., Trivedi, O., Dymnikova, I., Joshi, P. S., & Khlopov, M. (2024). On the Interactions of Black Holes and Cosmic Strings. Physics of the Dark Universe, 46, 101553. https://doi.org/10.1016/j.dark.2024.101553
• Brevik, I., Khlopov, M., Odintsov, S. D., Timoshkin, A. V., & Trivedi, O. (2024). Rips and Regular Future Scenario with Holographic Dark Energy: A Comprehensive Look, European Physical Journal C, 84(12), 1269. https://doi.org/10.1140/epjc/s10052-024-13601-z
• Chakraborty, C., Bhattacharyya, S., & Joshi, P. S. (2024). Low Mass Naked Singularities from Dark Core Collapse. Journal of Cosmology and Astroparticle Physics, 07, 053. https://doi.org/10.1088/1475-7516/2024/07/053
• Dave, B., & Goswami, G. (2024). ULDM Self-Interactions, Tidal Effects And Tunnelling out of Satellite Galaxies. Journal of Cosmology and Astroparticle Physics, 2024(02), 04401-04428. https://doi.org/10.1088/1475-7516/2024/02/044
• Dipanjan, D., & Joshi P. S. (2024). A Bonafide Model of Structure Formation from Gravitational Collapse. The European Physical Journal C, 85(5), 1-10. https://doi.org/10.1140/epjc/s10052-025-14157-2
• Joshi, A. B., Mosani, K., & Joshi, P. S. (2024). Future Null Singularity due to Gravitational Collapse. Physical Review D, 109 (6), 064019. https://doi.org/10.1103/PhysRevD.109.064019
• Joshi, A. B., Dey, D., Joshi, P. S., & Tank, V. R. (2024). Tidal Forces in Collapsing Compact Objects. Physical Review D, 110(12), 124066. https://doi.org/10.1103/PhysRevD.110.124066
• Kalsariya, V., Bambhaniya, P., & Joshi, P. S. (2024). Relativistic Time Delay Analysis of Pulsar Signals near Ultracompact Objects. Physical Review D, 110(10), 104026. https://doi.org/10.1103/PhysRevD.110.104026
• Madan, S., & Bambhaniya, P. (2024). Tidal Force Effects and Bound Orbits in Null Naked Singularity Spacetime. Chinese Physics C, 48(11), 115108. https://doi.org/10.1088/1674-1137/ad654f
• Saurabh, Bambhaniya, P., & Joshi, P. S. (2024). Imaging Ultracompact Objects with Radiatively Inefficient Accretion Flows. Astronomy & Astrophysics, 682, A113. https://doi.org/10.1051/0004-6361/202347941
• Shah, S. P., Desai, R. P., & Joshi, P. S. (2024). Hydrodynamic Vortex Flow in Magnetic Fluid: Under Continuous Rotation of a Rare Earth Magnet. Physics of Fluids, 36(10), 107117. https://doi.org/10.1063/5.0223274
• Solanki, K. N., Mosani, K., Deshpande, O., & Joshi, P. S. (2024).  Tipler Naked Singularities in N Dimensions. Classical and Quantum Gravity, 41(16), 165012. https://doi.org/10.1088/1361-6382/ad6115
• Trivedi, O. (2024). Recent Advances in Cosmological Singularities. Symmetry, 16(3), 298. https://doi.org/10.3390/sym16030298
• Trivedi, O. (2024). The Exact Solution Approach to Warm Inflation. Astroparticle Physics, 158, 102951. https://doi.org/10.1016/j.astropartphys.2024.10295
• Trivedi, O., Khlopov, M., & Timoshkin, A.V. (2024). Tsallis Holographic Dark Energy with Power Law Ansatz Approach. Symmetry, 16(4), 446. https://doi.org/10.3390/sym16040446
• Trivedi, O., Bidlan, A., & Moniz, P. (2024). Fractional Holographic Dark Energy. Physics Letters B, 858, 139074. https://doi.org/10.1016/j.physletb.2024.139074
• Trivedi, O., & Khlopov, M. (2024). Impossibility of Rips and Cosmological Singularities in a Universe Merging with Baby Universes. Journal of Cosmology and Astroparticle Physics, 09, 040. https://doi.org/10.1088/1475-7516/2024/09/040
• Trivedi, O., & Scherrer, R. J. (2024). New Perspectives on Future Rip Scenarios with Holographic Dark Energy. Physical Review D, 110(2), 023521. https://doi.org/10.1103/PhysRevD.110.023521
• Viththani, D., Joshi, A. B., Bhanja, T., & Joshi, P. S. (2024). Particle Motion and Tidal Force in a Non-vacuum-charged Naked Singularity. European Physical Journal C, 84(4), 383. https://doi.org/10.1140/epjc/s10052-024-12746-1
• Viththani, D. P., Bhanja, T., Patel, V., & Joshi, P. S. (2024). Magnetic Penrose Process and Kerr Black Hole Mimickers. Physical Review D, 110(12), 123035. https://doi.org/10.1103/PhysRevD.110.123035

2023

BOOKS

• Joshi, P. S. (2023). Dharm Jagruti. Ahmedabad: Dharma Jagruti Kendra.
• Joshi, P. S. (2023). Gyani & Vigyani--Sage & Scientist. Mumbai: Navneet-Samarpan.
• Joshi, P. S. (2023). Pankaj Joshi and Stephen Hawking. Ahmedabad: Divya Bhaskar Utsav.
• Joshi, P. S. (2023). Pryogatmak Gandhi - 2nd ED. Ahmedabad: Gurjar Granth Ratna Publishers.

JOURNAL ARTICLES

• Bambhaniya, P., Verma, J., Dey, D., & Joshi, P. S., (2023). Lense–Thirring Effect and Precession of Timelike Geodesics in Slowly Rotating Black Hole and Naked Singularity Spacetimes. Physics of the Dark Universe, 40, 101215. https://doi.org/10.48550/arXiv.2109.11137
• Dave, B., & Goswami, G. (2023). Self-interactions of ULDM to the Rescue? Journal of Cosmology and Astroparticle Physics, 2023(07), 01501 - 01502. https://iopscience.iop.org/article/10.1088/1475-7516/2023/07/015
• Dey, D., Layden, N. T., Coley, A. A., & Joshi, P. S. (2023). Equilibrium Condition in Gravitational Collapse and its Application to a Cosmological Scenario. Physical Review D, 108(4), 044046. https://doi.org/10.1103/PhysRevD.108.044046
• Dey, D., Malda, K., & Joshi, P. S. (2023). Equilibrium States from Gravitational Collapse of a Minimally Coupled Scalar Field with a Nonzero Potential. Physical Review D, 108(10), 104045. https://doi.org/10.1103/PhysRevD.108.104045
• Mosani, K., Dey, D., & Joshi, P. S., (2023). Erratum: Strong Curvature Naked Singularities in Spherically Symmetric Perfect Fluid Collapse. Physical Review D. 107(6), 069903. https://doi.org/10.1103/PhysRevD.107.069903
• Patel, V., Acharya, K., Bambhaniya, P., & Joshi, P. S. (2023). Energy Extraction from Janis-Newman-Winicour Naked Singularity. Physical Review D, 107(6), 064036. https://doi.org/10.1103/PhysRevD.107.064036
• Trivedi, O., Khlopov, M., Said, J., & Nunes, R. (2023). Cosmological Singularities in f(T, ϕ) Gravity. European Physical Journal C, 83(11), 1017. https://doi.org/10.1140/epjc/s10052-023-12204-4
• Trivedi, O., Simran, K. S., & Joshi, P. S. (2023). Cosmological Singularities in Non-canonical Models of Dark Energy. Physics of the Dark Universe, 42, 101366. https://doi.org/10.1016/j.dark.2023.101366

2022

BOOKS

• Joshi, P. S. (2022). Naked Singularity. USA: Scientific American.

JOURNAL ARTICLES

• Abbey, P., …..Goswami, G., et al. (2022). Reviewers’ January—December 2021. Indian Journal of Radiology and Imaging, 32(1), 3-4. https://doi.org/10.1055/s-0042-1748028
• Bambhaniya, P., Jusufi, K., & Joshi, P. S. (2022). Thin Accretion Disk in the Simpson-Visser Black-Bounce and Wormhole Spacetimes. Physical Review D, 105(2), 023021. https://doi.org/10.48550/arXiv.2109.15054
• Chakrabarti, S., Dave, B., Dutta, K., Goswami, G. (2022). Constraints On The Mass and Self-Coupling of Ultra-Light Scalar Field Dark Matter Using Observational Limits on Galactic Central Mass. Journal of Cosmology and Astroparticle Physics, 09, 074. https://doi.org/10.1088/1475-7516/2022/09/074
• Dey, D., Joshi, P. S., Mosani, K., & Vertogradov, V. (2022). Causal Structure of Singularity in Non-spherical Gravitational Collapse. European Physical Journal C, 82(5), 431. https://doi.org/10.48550/arXiv.2103.07190
• Mosani, K., Dey, D., Bhattacharya, K., Joshi, P. S. (2022). Singularity Resolution in Gravitational Collapse. Physical Review D, 105(6), 064048. https://doi.org/10.48550/arXiv.2110.07343
• Patel, V., & Joshi, P. S. (2022). Light Trajectory and Shadow Shape in the Rotating Naked Singularity. European Physics Journal C, 82(9), 798. https://doi.org/10.1140/epjc/s10052-022-10638-w
• Patel, V., & Joshi, P. S. (2022). Rotational Energy Extraction from the Kerr Black Hole’s Mimickers. Universe 2022, 8(11), 571. https://doi.org/10.3390/universe8110571
• Solanki, D. N., Bambhaniya, P., Dey, D., Joshi, P. S., & Pathak, K. N. (2022). Shadows and Precession of Orbits in Rotating Janis–Newman–Winicour Spacetime. The European Physical Journal C, 82(1), 77. https://doi.org/10.48550/arXiv.2109.14937
• Tahelyani, D., & Joshi, P. S. (2022). Comparing Thin Accretion Disk Properties of Naked Singularities and Black Holes. Physical Review D, 106(4), 044036. https://doi.org/10.1103/PhysRevD.106.044036