activity
20242026
most citedThe Growth of Dust in Galaxies in the First Billion Years with Applications to Blue Monsters

6 citations · 6 across the 7 of their papers we have counts for

collaborators

11 papers

astro-ph.GA2026

Simulation-Informed Dust Masses in Typical JWST Galaxies

Jed McKinney, Dhruv T. Zimmerman, Desika Narayanan +5

Direct detections of dust in typical galaxies remain untenable, despite the presence of dust suggested by rest-frame UV/optical spectro-photometry. Informed by cosmological z…

astro-ph.GA2026

Simulations of Dust Content and Attenuation in Galaxies

Dhruv T. Zimmerman, Jed McKinney, Desika Narayanan +10

Correctly modeling the dust attenuation law in galaxies is essential to properly inferring their growth and physical properties. With the rapid discovery of galaxies by JWST…

astro-ph.GA2026

Unveiling the Origins of the Molecular Gas Reservoirs in Recently Quenched Massive Galaxies

E. Savitch, D. Narayanan, D. J. Setton +13

Observations of quenched galaxies across cosmic time have revealed systems containing substantial molecular gas reservoirs, challenging the traditional picture of gas-poor, red and…

astro-ph.GA2026

The Lifecycle and Emission Properties of PAHs in Cosmological Hydrodynamic Galaxy Formation Simulations

Desika Narayanan, Paul Torrey, Massimiliano Parente +16

We present the first cosmological model for the lifecycle and luminous properties of PAHs in galaxies as they evolve from z=6-->0. We model 40 zoom-in galaxies, coupled with an on-…

astro-ph.GA2026

Reimagining SED Fitting with Cosmological Galaxy Simulations and Machine Learning

Dhruv T. Zimmerman, Desika Narayanan

SED fitting is the most common technique to recover galaxy physical properties from observed photometry. However, SED fitting requires many assumptions that essentially collapse a…

astro-ph.GA2026

Dust in the Average Galaxy: Attenuation, Emission, and Opacity from

Caitlin M. Casey, Hollis B. Akins, Andrew J. Battisti +43

We present constraints on the dust emission and attenuation properties of galaxies across 0<z<7 using JWST imaging from the COSMOS-Web Survey combined with deep FIR/(sub)millimeter…

astro-ph.GA2025

Linking Warm Dark Matter to Merger Tree Histories via Deep Learning Networks

Ilem Leisher, Paul Torrey, Alex M. Garcia +11

Dark matter (DM) halos form hierarchically in the Universe through a series of merger events. Cosmological simulations can represent this series of mergers as a graph-like ``tree''…

astro-ph.GA2025

Metallicity Gradients in Modern Cosmological Simulations II: The Role of Bursty Versus Smooth Feedback at High-Redshift

Alex M. Garcia, Paul Torrey, Aniket Bhagwat +22

The distribution of gas-phase metals within galaxies encodes the impact of stellar feedback on galactic evolution. At high-redshift, when galaxies are rapidly assembling, feedback-…

astro-ph.GA2025★ 6 cited

The Growth of Dust in Galaxies in the First Billion Years with Applications to Blue Monsters

Desika Narayanan, Paul Torrey, Daniel Stark +9

A combination of JWST observations at z~12-14 and ALMA observations of extremely dust-rich systems at z~6 has demonstrated that dust grows extremely fast in the early Universe, wit…

astro-ph.GA2024

Does the Fundamental Metallicity Relation Evolve with Redshift? II: The Evolution in Normalisation of the Mass-Metallicity Relation

Alex M. Garcia, Paul Torrey, Sara L. Ellison +10

The metal content of galaxies is a direct probe of the baryon cycle. A hallmark example is the relationship between a galaxy's stellar mass, star formation rate (SFR), and gas-phas…

astro-ph.GA2024

Tracing the History of Obscured Star Formation with Cosmological Galaxy Evolution Simulations

Dhruv T. Zimmerman, Desika Narayanan, Katherine E. Whitaker +1

We explore the cosmic evolution of the fraction of dust obscured star formation predicted by the \textsc{simba} cosmological hydrodynamic simulations featuring an on-the-fly model…