معرفی
Neelima Sehgal is an Associate Professor at Stony Brook University's Physics and Astronomy Department, where she leads the CMB-HD Collaboration and is a member of the Simons Observatory, AdvACT, and CMB-S4 Collaborations. Her research focuses on observational and theoretical cosmology, particularly in areas like Dark Matter, Early Universe phenomena, Neutrino Physics, Dark Energy, Inflation, and Quantum Gravity. Her office is Room 454 ESS, and she can be reached at neelima.sehgal@stonybrook.edu.
Her teaching responsibilities include courses such as AST 101 (Introduction to Astronomy), AST 347 (Undergraduate Cosmology), PHY 524 (Graduate Cosmology), PHY 620 (Graduate General Relativity), and PHY 688 (The Dark Universe). These courses emphasize foundational concepts in astronomy, cosmological models, relativistic physics, and dark matter/energy probes.
Research Interests: Dr. Sehgal’s work bridges theoretical and observational cosmology. She explores Dark Matter dynamics using CMB lensing and galaxy cross-correlations, investigates Early Universe physics via Big Bang Nucleosynthesis and Inflationary models, and studies neutrino behavior in cosmic contexts. Her research also addresses Dark Energy’s role in cosmic acceleration and the interplay between quantum gravity and cosmological observations.
Publications Trends: Dr. Sehgal’s recent work centers on high-precision CMB measurements with the Atacama Cosmology Telescope (ACT), focusing on lensing analysis, galactic foreground mitigation, and cross-correlation techniques to constrain cosmological parameters. Her studies highlight baryonic feedback effects, structure growth over cosmic time, and the potential of upcoming surveys like CMB-HD and Simons Observatory to probe sub-galactic Dark Matter scales and test gravity models.
Labs/Teams: As PI of the CMB-HD Collaboration, she spearheads efforts to map the Cosmic Microwave Background with ultra-high resolution. She also contributes to the Simons Observatory and ACT projects, advancing observational cosmology through collaborative telescope initiatives and data analysis frameworks.
