Bio

Dr Rongmon Bordoloi is an observational astrophysicist studying galaxy evolution. He is particularly interested in understanding how galaxies form and evolve, by studying the cycling of baryons into and out of galaxies. He is an expert observer, who routinely uses  multi-wavelength spectroscopy and imaging (both from the ground and space) to study the galaxy baryon cycle. The baryon cycle is vital in regulating  star-formation in galaxies and dictate the evolution of a galaxy. These diffuse reservoirs of gas outside galaxies contain most of the missing baryons in the Universe.  Dr. Bordoloi works closely with theorists who use numerical simulations to study galaxy formation. This close interaction with theorists help in interpreting his own observational results and in constraining different theories of galaxy evolution. He also works on topics related to the formation of the first galaxies, observational cosmology, and the Fermi Bubbles.

Dr Bordoloi joins the Physics Department as an Assistant Professor in 2019. Dr Bordoloi received his PhD from ETH Zurich in 2013. After that he moved to US as a postdoctoral fellow at Space Telescope Science Institute till 2015.  He then moved to Boston to join Massachusetts Institute of Technology as a NASA Hubble Fellow.

 

 

Area(s) of Expertise

 

 

 

Publications

• EIGER. VIII. First Stars Signatures in the Connection between O I Absorption and Galaxies in the Epoch of Reionization , The Astrophysical Journal (2026)
• A New High-latitude H i Cloud Complex Entrained in the Northern Fermi Bubble , The Astrophysical Journal Letters (2025)
• Characterizing gas flows through observations of the disk-circumgalactic medium interface with the Habitable Worlds Observatory , Journal of Astronomical Telescopes Instruments and Systems (2025)
• GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole , Astronomy and Astrophysics (2025)
• Quasar Spectral Energy Distributions in the Rest-frame Extreme Ultraviolet: Hubble-COS Spectra of Two Ultraluminous Quasars , The Astrophysical Journal (2025)
• Rapid, out-of-equilibrium metal enrichment indicated by a flat mass-metallicity relation at z   ∼  6 from NIRCam grism spectroscopy , Astronomy and Astrophysics (2025)
• Spatially Resolved Circumgalactic Medium around a Star-forming Galaxy Driving a Galactic Outflow at z ≈ 0.8 , The Astrophysical Journal (2025)
• The Light Echo of a High-redshift Quasar Mapped with Lyα Tomography , The Astrophysical Journal Letters (2025)
• Ultraviolet Properties of Multiphase Gas toward the Inner Galaxy , The Astrophysical Journal (2025)
• A unified model for the clustering of quasars and galaxies at z ≈ 6 , Monthly Notices of the Royal Astronomical Society (2024)

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