Medha Chakraborty
CEA Paris-Saclay, IRFU, Tata Institute of Fundamental Research
0000-0003-2211-6912
About
I have completed my PhD from the Tata Institute of Fundamental Research, working with the GRAPES-3 experiment.
Cosmic rays experience deflection on their journey to Earth, resulting in an almost isotropic flux upon arrival. However, by analyzing data collected by GRAPES-3 from January 1, 2013, to December 31, 2016, we have detected an anisotropy of less than 1%. Various models have been proposed to explain this observed anisotropy, though it remains not fully understood. This discovery provides insights into the propagation mechanisms and potential distribution of cosmic ray sources, which are long-standing mysteries in the field.
Additionally, I have played a role in the GRAPES-3 experiment by developing quality cuts to remove mis-reconstructed showers, monitoring data, performing reconstruction tasks, and ensuring data validity. I have also been involved in generating simulation data using CORSIKA, which has proven to be useful for composition studies.
Through my analysis work, I have obtained strong coding skills in software such as Python, C++, ROOT, HEALPix, TMVA, and ROOUNFOLD.
Looking ahead, I aim to uncover more mysteries in the field of astroparticle physics and expand into other areas.
Outside of my academic pursuits, I enjoy singing, listening to music, and watching movies.
Employment
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CEA Paris-Saclay PostDoc2025 - Present
Education
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IRFU PostDoc2025 - 2027
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Tata Institute of Fundamental Research Integrated PhD2017 - 2024
Projects & Funding
Projects & funding information is unavailable.
Publications (12)
- Diffuse Gamma-Rays at 10-300 TeV with the GRAPES-3 Experiment Save
- Geant4 Simulation Package for the GRAPES-3 Muon Telescope Save
- Small-Scale Anisotropy in Cosmic Ray Flux Observed by GRAPES-3 at TeV Energies Save
- Probing atmospheric effects using GRAPES-3 plastic scintillator detectors Save
- Evidence of a Hardening in the Cosmic Ray Proton Spectrum at around 166 TeV Observed by the GRAPES-3 Experiment Save
- Small-scale Cosmic-Ray Anisotropy Observed by the GRAPES-3 Experiment at TeV Energies Save
- A GEANT4 based simulation framework for the large area muon telescope of the GRAPES-3 experiment Save
- Probing solar storms with GRAPES-3 scintillator detectors Save
- Validating the improved angular resolution of the GRAPES-3 air shower array by observing the Moon shadow in cosmic rays Save
- Large-scale cosmic ray anisotropy measured by the GRAPES-3 experiment Save