Present Members
Designation: Senior Research Fellow (DST-INSPIRE)
Joining year: Autumn 2020
E-mail: souphys97@gmail.com, souphys@tezu.ernet.in
Research interests: Plasma physics, Solar Physics, Astrophysics, Fluid Dynamics
Thesis title: Solar Plasma Dynamics with Modified Gravitothermal Effects
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Souvik Das and Pralay Kumar Karmakar, "Non-Planar Magnetoactive GES-Based Solar Plasma Stability", J. Astrophys. Astron. 43, 44 (2022). DOI: https://doi.org/10.1007/s12036-022-09838-3
Souvik Das, Ahmed Atteya, and Pralay Kumar Karmakar, "Acoustic Waves in the Jovian Dusty Magnetosphere: A Brief Review and Meta-Analysis", Rev. Mod. Plasma Phys. 6, 35 (2022). DOI: https://link.springer.com/10.1007/s41614-022-00101-4
Souvik Das, Ahmed Atteya, and Pralay Kumar Karmakar, "A Theoretic Analysis of Magnetoactive GES-Based Turbulent Solar Plasma Instability", Mon. Not. R. Astron. Soc., 523(4) (2023). DOI: https://doi.org/10.1093/mnras/stad1664
Souvik Das and Pralay Kumar Karmakar, "Solar GES-Structure Modified with EiBI Gravity", Chinese J. Phys. 91, 157–166 (2024). DOI: https://doi.org/10.1016/j.cjph.2024.05.008
Souvik Das and Pralay Kumar Karmakar, "Stability and Wave Dynamics in Polytropic Eddington-inspired Born-Infeld Gravitating Solar Plasmas", Physical Review E, 113, 015205 (2026). DOI: https://doi.org/10.1103/2djh-d4qh
Souvik Das and Pralay Kumar Karmakar, "Analysis of Solar Surface Oscillations and Energy Transport with Bispectral Electronic Thermostatistics", The Astrophysical Journal, 997(2), 232 (2026). DOI: https://doi.org/10.3847/1538-4357/ae25ec
Souvik Das and P. K. Karmakar, "A parametric analysis of ion-acoustic wave propagation in viscous nonthermal solar wind plasmas", Advances in Space Research, 77(4), 5475–5491 (2026). DOI: https://doi.org/10.1016/j.asr.2025.12.062
Tanushree Bezbaruah
Designation: Research Scholar
Joining year: Autumn 2021
E-mail: tanushree.bez21@gmail.com, tanu196@tezu.ernet.in
Research interests: Astrophysics, Plasma, Fluid dynamics, Nonlinear dynamics
Thesis title: Instability Dynamics in Saturnian Plasmas
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Smriti Roy, Tanushree Bezbaruah, and Pralay Kumar Karmakar, “Nonlinear streaming instability in viscoelastic quantum dusty plasmas”, Waves in Random and Complex Media (2023). DOI: https://doi.org/10.1080/17455030.2023.2177503
Tanushree Bezbaruah, and Pralay Kumar Karmakar, “Nonlinear Jeans-Buneman instability in gravitating complex plasmas”, Waves in Random and Complex Media (2023). DOI: https://doi.org/10.1080/17455030.2023.2213029
T. Bezbaruah and P. K. Karmakar, "Nonlinear dust-acoustic wave dynamics in nonthermal Saturnian E-ring with negative ion moderation", Chinese Journal of Physics, 89, pp. 1611-1623 (2024). DOI: 10.1016/j.cjph.2024.03.012
T. Bezbaruah and P. K. Karmakar, "Instability analysis of Saturnian magnetospheric complex plasmas with heteropolar dust grains", Monthly Notices of the Royal Astronomical Society, 544, pp. 2987 - 3004 (2025). DOI: 10.1093/mnras/staf1809
Jonmoni Dutta
Designation: Research Scholar
Joining year: Autumn 2022
E-mail: jonmonirupshi@gmail.com, jonmoni@tezu.ernet.in
Research interests: Astrophysical plasma, Space Plasma.
Thesis title: Stability Analysis of Dust Molecular Clouds with Negative Ions to Astrostructure Formation
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Karmakar, P. K., and Dutta, J., " Athermal pulsational mode dynamics with negative ions." Chinese Journal of Physics, 90, 726-741. (2024) DOI: 10.1016/j.cjph.2024.04.035
Dutta, J., and Karmakar, P. K., "Pulsational mode dynamics in the presence of negions." Waves in Random and Complex Media 1-19. (2024). DOI: 10.1080/17455030.2024.2413614
Dutta, J., Atteya, A., and Karmakar, P. K., "Spherical non-thermal pulsational mode stability thermo-statistically moderated with extra-negative ions." Fundamental Plasma Physics, 14, 100087. DOI: 10.1016/j.fpp.2025.100087
Dutta, J., Atteya, A., and Karmakar, P. K., "Nonlinear pulsational modes in deformed spherical tripolar dust molecular clouds to structure formation" Eur. Phys. J. Plus 141, 439. DOI: http://doi.org/10.1140/epjp/s13360-026-07557-0
Mritunjoy Das
Designation: Research Scholar
Joining year: Spring 2023
E-mail: mritunjoydasrs@gmail.com, mritun@tezu.ernet.in
Research interests: Astrophysics, Modified Theories of Gravity, Astro-Plasma Physics.
Thesis title: Astrocosmic Structurization in Modified Gravity Framework
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Dipankar Ray
Designation: Research Scholar
Joining year: Autumn 2023
E-mail: dipankarray056@gmail.com, dray056@tezu.ernet.in
Research interests: Astrophysics, Modified Theories of Gravity, Astro-Plasma Physics.
Thesis title: Analyzing Modified Jeans Instability with Semi-Analytic Techniques
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D. Ray, and Pralay Kumar Karmakar, “Numerical investigation of self-gravitational collapse in nonthermal astrophysical plasmas”, Journal of Subatomic Particles and Cosmology 6,100415 (2026). DOI: 10.1016/j.jspc.2026.100415
D. Ray, Pralay Kumar Karmakar, B. Kakad, and A. Kakad, “Fluid simulation of Jeans instability in nonthermal dusty plasmas”, Phys. Rev. E 113, 055212 (2026). DOI: 10.1103/jfw8-rv8g
D. Ray, P. K. Karmakar, and S. Saikia, "Effect of kappa-modified polarization force on Jeans instability in non-thermal EiBi-gravitating dust clouds", J. Cosmol. Astropart. Phys. 2025, 037 (2025). DOI: 10.1088/1475-7516/2025/09/037
D. Ray, and P. K. Karmakar, "Pulsational mode stability in complex EiBi-gravitating polarized astroclouds with (r,q)-distributed electrons", J. Cosmol. Astropart. Phys. 2025, 014 (2024). DOI: 10.1088/1475-7516/2024/12/014
Sourav Sutradhar
Designation: Research Scholar
Joining year: Autumn 2023
E-mail: s.sutradhar1997@gmail.com, s.sutradhar43912@gmail.com, php23109@tezu.ac.in, souravq@tezu.ernet.in
Research interests: Dark Matter, Dark Energy, Complex Cosmic Fluid Dynamics, Cosmology.
Thesis title: Dark Matter Cosmology and Stability Leading to Structure Formation
Soumadip Karmakar
Designation: Research Scholar
Joining year: Autumn 2024
E-mail: soumadipkarmakar002@gmail.com, php24119@tezu.ac.in.
Research interests: Quantum Plasma,Non-linear dynamics, Quantum Hydrodynamics and Plasma of compact astroobjetcs.
Thesis title: TBD
Shyamalee Bora
Designation: Research Scholar
Joining year: Autumn 2024
E-mail: swamaleebora@gmail.com
Research interests: Astrophysics, Cosmology, Modified Theories of Gravity, Black hole Physics, Astro-Plasma Physics.
Thesis title: TBD
Partha Pratim Deka
Designation: Research Scholar
Joining year: Autumn 2024
E-mail: parthapratimdeka113@gmail.com, php24113@tezu.ac.in, parthad@tezu.ernet.in
Research interests: Astrophysics, Astro-Plasma, Magneto Hydrodynamics, Non-Linear Plasma Dynamics.
Thesis title: TBD
Partha Pratim Deka, Pralay Kumar Karmakar, and Ahmed Atteya, “Nonlinear electronic streaming instability in lunar plasmas”, Scientific Reports (2026). DOI: https://doi.org/10.1038/s41598-026-53901-w
Ningthoujam Usharani Devi
Designation: Research Scholar
Joining year: Spring 2025
E-mail: ningthoujamusharani5@gmail.com, php25006@tezu.ac.in
Research interests: Astrophysics, Solar physics, Astroplasma
Thesis title: Study of magnetohydrodynamics around the solar surface.
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Khwairakpam Dhanish Singha
Designation: Research Scholar
Joining year: Autumn 2025
E-mail: dhanish.ds21@gmail.com, php25115@tezu.ernet.in
Research interests: Astro-Plasma Physics, Plasma, Fluid Dynamics
Thesis title: TBD
Ashish Bhargab Kalita
Designation: Research Scholar
Joining year: Spring 2026
E-mail: php26003@tezu.ernet.in
Research interests: Astro-Plasma Physics, Plasma, Non-linear dynamics, Astrophysics
Thesis title: TBD
He is currently doing PhD coursework