443 citations · 4.9k across the 139 of their papers we have counts for
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The Mission Market: Flying NASA's Vetted, Unflown Science
Blakesley Burkhart
Every year NASA validates more excellent science missions than it can afford to fly. Some of the most promising missions in astrophysics, heliophysics, and planetary science are ju…
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…
Multiscale Synthetic observations of Polarized dust emission: On the origin of Depolarization effect from Molecular clouds to Starless cores and Constraints on Dust Physics
Nguyen Chau Giang, Thiem Hoang, Blakesley Burkhart +4
Submillimeter observations of polarized dust emission from molecular clouds to starless cores frequently report a decrease in polarization fraction (p) with increasing dust emissio…
Multiphase turbulence as the origin of OH+, H2O+ and H3+ column density scatter in the local ISM
Uri Malamud, Shmuel Bialy, Benjamin Godard +2
Observations of the reactive ions OH+, H2O+ and H3+ in the Galactic interstellar medium reveal large sight-line-to-sight-line scatter in their column densities, commonly interprete…
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…
A cosmological framework for stellar collisions at high redshift in proto-globular clusters, nuclear star clusters, and Little Red Dots
Claire E. Williams, Smadar Naoz, Sanaea C. Rose +8
Observations and cosmological simulations indicate that the early Universe hosted numerous compact, high-density stellar systems, where close encounters and physical collisions bet…
Implications of the nanoHertz Gravitational-Wave Background for Galactic Feedback and Massive Black Hole Growth
Megan Taylor Tillman, Blakesley Burkhart, Chiara M. F. Mingarelli +5
We investigate how pulsar timing array (PTA) measurements of the nanoHertz gravitational-wave background (GWB) can constrain models for the growth history of supermassive black hol…
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…
Protostellar Jets in Star Cluster Formation and Evolution: I. Implementation and Initial Results
Sabrina M. Appel, Blakesley Burkhart, Mordecai-Mark Mac Low +8
Stars form in clusters from the gravitational collapse of giant molecular clouds, which is opposed by a variety of physical processes, including stellar feedback. The interplay bet…
Exploring the impact of AGN feedback model variations on the Lyman- Forest Flux Power Spectrum
Megan Pirecki, Megan Taylor Tillman, Blakesley Burkhart +2
We study the effects of varying different Active Galactic Nuclei (AGN) feedback parameters on the Lyman- (Ly) forest 1D transmitted flux power spectrum (P1D). We use the Cosm…
Joint Analysis of HI Absorption Zeeman Measurements and the Morphology of Filamentary HI Emission
Marta Nowotka, Susan E. Clark, Blakesley Burkhart +4
We present a joint analysis of HI absorption Zeeman measurements and the morphology of filamentary HI emission to investigate the three-dimensional structure of the magnetic field…
Development of Turbulence in Post-shock Regions
Michael M. Foley, Philip Mocz, Blakesley Burkhart +2
Supersonic isothermal turbulence is ubiquitous in the interstellar medium. This work presents high-resolution AREPO hydrodynamical simulations of isolated shocks moving through sup…
Reconstructing galactic feedback history via the Lyman- forest with Habitable Worlds Observatory
Megan T. Tillman, Joseph N. Burchett, Blakesley Burkhart +2
Recent studies have focused on the low- Ly forest as a potential constraint on galactic feedback, as different AGN and stellar feedback models in hydrodynamic simulations pro…
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.…
A data-driven approach for star formation parameterization using symbolic regression
Diane M. Salim, Matthew E. Orr, Blakesley Burkhart +2
Star formation (SF) in the interstellar medium (ISM) is fundamental to understanding galaxy evolution and planet formation. However, efforts to develop closed-form analytic express…
Searching for star formation towards the Eos molecular cloud
Suryansh Saxena, Thomas J. Haworth, Blakesley Burkhart +5
The Eos cloud, recently discovered in the far ultraviolet via H fluorescence, is one of the nearest known dark molecular clouds to the Sun, with a distance spanning from $\sim9…
A Nearby Dark Molecular Cloud in the Local Bubble Revealed via H Fluorescence
Blakesley Burkhart, Thavisha E. Dharmawardena, Shmuel Bialy +20
A longstanding prediction in interstellar theory posits that significant quantities of molecular gas, crucial for star formation, may be undetected due to being ``dark" in commonly…
Magnetic fields in the Eos Cloud: dynamically important fields in the interface between atomic and molecular gas
Janik Karoly, Kate Pattle, Blakesley Burkhart +3
The recently-discovered Eos molecular cloud, is a CO-dark, low-density cloud located at a distance of approximately 94 pc from the Sun which does not appear to have formed stars at…
CDM star clusters at cosmic dawn: stellar densities, environment, and equilibrium
Claire E. Williams, Smadar Naoz, William Lake +7
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 high stell…
A Tentative Detection of Molecular Hydrogen (H) Emission Lines at Cosmic Dawn
Madisen Johnson, Blakesley Burkhart, Francesco D'Eugenio +11
We present a theoretical framework for interpreting far-ultraviolet (FUV) fluorescent emission from molecular hydrogen (H) in high-redshift galaxies, motivated by the unique ca…
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…
Tracing 3-D Magnetic Field Structure Using Dust Polarization and the Zeeman Effect
Brandon Shane, Blakesley Burkhart, Laura Fissel +3
The characterization of magnetic fields within molecular clouds is fundamental to understanding star formation processes. Accurately gauging the three-dimensional structure of thes…
The Stellar Initial Mass Function of Early Dark Matter-free Gas Objects
William Lake, Michael Y. Grudić, Smadar Naoz +6
Among the remarkable strides made by JWST is the discovery of the earliest star clusters found to date. These have been proposed as early progenitors of globular clusters, which ar…