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  1. Blue Monsters and Dusty Descendants: Reconciling UV and IR Emission from Galaxies from z \(\sim\) 7, up to z = 14

    Publication
    Recent JWST observations reveal massive, UV-bright galaxies at z>10 with little apparent dust attenuation, whereas ALMA detections at z≃7 show similarly massive systems that are …

  2. An FUV-optical Approach for Studying Hierarchical Star Formation in Nearby Galaxies with UVIT

    Publication
    Young star-forming clumps (SFCs) emit strongly in the ultraviolet (UV), making UV imaging ideal for detecting them. The Ultraviolet Imaging Telescope (UVIT) onboard AstroSat, with 1.5arcsec …

  3. Radiation magnetohydrodynamics simulations of Population III star formation during the epoch of reionization

    Publication
    Cosmological simulations find that pockets of star-forming gas could remain pristine up until the Epoch of Reionization (EoR) due to the inhomogeneous nature of metal mixing and …

  4. Observing Compact Population III Star Clusters and the Presence of Cosmic Streaming

    Publication
    The formation of the Universe's first luminous stellar structures depends on the unique conditions at "Cosmic Dawn," which are set by the underlying cosmological model and early …

  5. Supersonic Turbulence in Primordial Halos: a Comparison with and without the Stream Velocity

    Publication
    Turbulence plays a critical role in regulating star formation in molecular clouds and is also observed in simulations of primordial halos that host Population III (Pop III) stars …

  6. \(\Lambda\)CDM Star Clusters at Cosmic Dawn: Stellar Densities, Environment, and Equilibrium

    Publication
    The James Webb Space Telescope (JWST) has opened a window on many new puzzles in the early Universe, including a population of high-redshift star clusters with extremely …

  7. The Coevolution of Stellar Wind-blown Bubbles and Photoionized Gas. I. Physical Principles and a Semianalytic Model

    Publication
    We propose a new framework for the simultaneous feedback of stellar winds and photo-ionizing radiation from massive stars, distinguishing the locations where forces are applied, and consequences …

  8. Bursts of Star Formation and Radiation-driven Outflows Produce Efficient LyC Leakage from Dense Compact Star Clusters

    Publication
    The escape of LyC photons emitted by massive stars from the dense interstellar medium (ISM) of galaxies is a key bottleneck for cosmological reionization. The escape fraction varies …

  9. Magnetic fields limit the mass of Population III stars even before the onset of protostellar radiation feedback

    Publication
    The masses of Population III stars are largely unconstrained since no simulations exist that take all relevant primordial star formation physics into account. We perform the first suite …

  10. Population III star formation in the presence of turbulence, magnetic fields, and ionizing radiation feedback

    Publication
    Turbulence, magnetic fields, and radiation feedback are key components that shape the formation of stars, especially in the metal-free environments at high redshifts where Population III stars …

  11. The Interplay between the Initial Mass Function and Star Formation Efficiency through Radiative Feedback at High Stellar Surface Densities

    Publication
    The observed rest-UV luminosity function at cosmic dawn (\(z \sim 8-14\)) measured by JWST revealed an excess of UV-luminous galaxies relative to many pre-launch …