51 citations · 232 across the 17 of their papers we have counts for
19 papers
Wandering intermediate-mass black holes and off-nuclear tidal disruption events from early star clusters
Claire E. Williams, Smadar Naoz, Yihao Zhou +9
Off-nuclear tidal disruption events (TDEs) reveal evidence for massive black holes outside galactic centers, but the origins of this wandering population remain uncertain. We inves…
Non-equilibrium chemistry and radiation hydrodynamics in metal-poor and metal-rich interstellar gas
Shyam H. Menon, Piyush Sharda, Blakesley Burkhart +1
We present a flexible implementation of non-equilibrium chemical networks with the framework, coupled to a nonlocal variable Eddington tensor-closed radiation tran…
Radiative Feedback in Population III Protostellar Growth: HI Shielding and HII Region Trapping
Avi Chen, Shyam H. Menon, Blakesley Burkhart +7
We present a suite of radiation-magnetohydrodynamics simulations from the Popsicle project that follow the long-term growth ( kyr) of primordial protostars while self-cons…
Observing compact Pop III star clusters and the presence of cosmic streaming
Claire E. Williams, Smadar Naoz, Naoki Yoshida +7
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 ba…
Supersonic Turbulence in Primordial Halos: A Comparison With and Without The Stream Velocity
Avi Chen, William Lake, Claire E. Williams +6
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.…
Magnetic fields limit the mass of Population III stars even before the onset of protostellar radiation feedback
Piyush Sharda, Shyam H. Menon, Roman Gerasimov +5
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…
Bursts of star formation and radiation-driven outflows produce efficient LyC leakage from dense compact star clusters
Shyam H. Menon, Blakesley Burkhart, Rachel S. Somerville +2
The escape of LyC photons emitted by massive stars from the dense interstellar medium of galaxies is one of the most significant bottlenecks for cosmological reionization. The esca…
A 260 pc resolution ALMA map of HCN(1-0) in the galaxy NGC 4321
Lukas Neumann, Frank Bigiel, Ashley T. Barnes +24
The star formation rate (SFR) is tightly connected to the amount of dense gas in molecular clouds. However, it is not fully understood how the relationship between dense molecular…
Population III star formation in the presence of turbulence, magnetic fields and ionizing radiation feedback
Piyush Sharda, Shyam H. Menon
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 Populatio…
The Interplay between the IMF and Star Formation Efficiency through Radiative Feedback at High Stellar Surface Densities
Shyam H. Menon, Lachlan Lancaster, Blakesley Burkhart +3
The observed rest-UV luminosity function at cosmic dawn () measured by JWST revealed an excess of UV-luminous galaxies relative to many pre-launch theoretical predicti…
Hidden Gems on a Ring: Infant Massive Clusters and Their Formation Timeline Unveiled by ALMA, HST, and JWST in NGC 3351
Jiayi Sun, Hao He, Kyle Batschkun +38
We study young massive clusters (YMCs) in their embedded "infant" phase with ALMA, HST, and JWST observations targeting the central starburst ring in NGC…
Outflows Driven by Direct and Reprocessed Radiation Pressure in Massive Star Clusters
Shyam H. Menon, Christoph Federrath, Mark R. Krumholz
We use three-dimensional radiation hydrodynamic (RHD) simulations to study the formation of massive star clusters under the combined effects of direct ultraviolet (UV) and dust-rep…
Infrared Radiation Feedback Does Not Regulate Star Cluster Formation
Shyam H. Menon, Christoph Federrath, Mark R. Krumholz
We present 3D radiation-hydrodynamical (RHD) simulations of star cluster formation and evolution in massive, self-gravitating clouds, whose dust columns are optically thick to infr…
A radiation hydrodynamics scheme on adaptive meshes using the Variable Eddington Tensor (VET) closure
Shyam H. Menon, Christoph Federrath, Mark R. Krumholz +3
We present a new algorithm to solve the equations of radiation hydrodynamics (RHD) in a frequency-integrated, two-moment formulation. Novel features of the algorithm include i) the…
VETTAM: A scheme for radiation hydrodynamics with adaptive mesh refinement using the variable Eddington tensor method
Shyam H. Menon, Christoph Federrath, Mark R. Krumholz +3
We present Variable Eddington Tensor-closed Transport on Adaptive Meshes (\texttt{VETTAM}), a new algorithm to solve the equations of radiation hydrodynamics (RHD) with support for…
First extragalactic measurement of the turbulence driving parameter: ALMA observations of the star-forming region N159E in the Large Magellanic Cloud
Piyush Sharda, Shyam H. Menon, Christoph Federrath +13
Studying the driving modes of turbulence is important for characterizing the impact of turbulence in various astrophysical environments. The driving mode of turbulence is parameter…
The Dependence of the Hierarchical Distribution of Star Clusters on Galactic Environment
Shyam H. Menon, Kathryn Grasha, Bruce G. Elmegreen +15
We use the angular Two Point Correlation Function (TPCF) to investigate the hierarchical distribution of young star clusters in 12 local (3--18 Mpc) star-forming galaxies using sta…
On the compressive nature of turbulence driven by ionising feedback in the pillars of the Carina Nebula
Shyam H. Menon, Christoph Federrath, Pamela Klaassen +2
The ionizing radiation of massive stars sculpts the surrounding neutral gas into pillar-like structures. Direct signatures of star formation through outflows and jets are observed…
On the turbulence driving mode of expanding HII regions
Shyam H. Menon, Christoph Federrath, Rolf Kuiper
We investigate the turbulence driving mode of ionizing radiation from massive stars on the surrounding interstellar medium (ISM). We run hydrodynamical simulations of a turbulent c…