Nishant Tiwari
PhD Researcher in Space Physics | Theoretical Physicist | Photographer
Scientific Background & Research
I am a PhD student specializing in Space Physics, where I investigate the complex dynamics of near-Earth space. My current research focuses on magnetosphere–ionosphere coupling and field-aligned current (FAC) systems. By utilizing satellite observations, I aim to decode the energy and momentum transfer processes that define our space weather environment.
Before my doctoral studies, I explored the frontiers of Theoretical Physics during my Master's. My thesis focused on EMDA (Einstein Maxwell Dilaton-Axion) Gravity—a generalization of classical theory that incorporates string theory elements like dilaton and axion fields. I specifically researched how these fields influence astrophysical systems and the nature of quasi-periodic oscillations (QPOs) near black holes.
My long-term goal is to bridge the gap between theoretical gravity models and planetary weather, applying these methodologies to the study of exoplanetary atmospheres and high-gravity celestial environments.
Publications & Writing
Peer-Reviewed Journal Articles
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Dasgupta, A., Tiwari, N., & Banerjee, I. (2025).
Signatures of Einstein-Maxwell dilaton-axion gravity from the observed quasi-periodic oscillations in black holes
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Journal of Cosmology and Astroparticle Physics (JCAP), 10 (2025) 054.
Published: Oct 14, 2025 | DOI: 10.1088/1475-7516/2025/10/054 | arXiv: 2503.02708 [gr-qc]
Science Communication
- Tiwari, N. (Dec 30, 2021). Why the NASA Probe Inside the Sun's Atmosphere Hasn't Melted . Published in The Wire Science.
- Tiwari, N. (Present). The Scientific Drop. Exploring Astrophysics and Space Physics through data-driven storytelling.
A Lens of Curiosity
Beyond the equations, I am a passionate photographer and singer. I believe that photography is more than capturing light; it is a way of seeing the world with wonder. My background in astrophysics often informs my perspective, allowing me to see the "mundane" beauty of our world as part of a much larger cosmic story.
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