Rongmon Bordoloi

Research Focus Link to heading

How do galaxies become what they are? I lead research at North Carolina State University to answer this fundamental question by studying the gaseous halos that surround galaxies—vast reservoirs of gas that fuel star formation and drive cosmic evolution.

My approach combines cutting-edge multi-wavelength observations across ultraviolet, optical, and radio wavelengths to map the circumgalactic medium (CGM)—the dynamic interface where galaxies exchange gas with the universe. I harness the power of gravitational lensing as a natural “cosmic telescope” to achieve unprecedented spatial and spectral resolution of these gas flows, revealing how galaxies regulate their own evolution through cosmic history.

Currently, I’m using the James Webb Space Telescope to probe the early Universe, investigating how the first galaxies transformed the intergalactic medium during the epoch of reionization—unlocking secrets of the cosmic dawn.

Latest News Link to heading

New paper out! We discover signatures of First stars in the circumgalactic medium of z~6 galaxies

Study of spatially resolved CGM driven by galactic outflows around a gravitationally lensed galaxy

Discovery of a new population of HI clouds in the Fermi Bubbles