activity
20242026
collaborators

6 papers

astro-ph.GA2026

Learning the Universe at High Redshifts: Impact of Accretion Modeling on Early Black Hole Growth

Jonathan Kho, Aklant K. Bhowmick, Rainer Weinberger +8

JWST discoveries of the earliest () supermassive black holes (BHs, ) challenge the BH seeding and accretion models of most cosmol…

astro-ph.GA2026

The DREAMS Project: Disentangling the Impact of Halo-to-Halo Variance and Baryonic Feedback on Milky Way Dark Matter Density Profiles

Alex M. Garcia, Jonah C. Rose, Paul Torrey +23

In this work, we utilize a new suite of Milky Way-mass halos from the DREAMS Project, simulated with Cold Dark Matter (CDM), to quantify the influence of baryon feedback and intrin…

astro-ph.GA2025

The abundance and properties of the lowest luminosity dwarf galaxies around the Milky Way: Insights from Semi-Analytic Models

Niusha Ahvazi, Andrew B. Pace, Christopher T. Garling +11

We investigate the formation and observable properties of faint satellite galaxies (M$_\rm V > -3$) in Milky Way-like halos using the semi-analytic galaxy formation model Galacticu…

astro-ph.GA2025

Heavy seeds and the first black holes: Insights from the BRAHMA simulations

Aklant K. Bhowmick, Laura Blecha, Paul Torrey +9

From the luminous quasars at to the recent AGNs revealed by JWST, observations of the earliest black hole (BH) populations can provide unique constraints o…

astro-ph.GA2025

Signatures of BH seeding on the relation: Predictions from the BRAHMA simulations

Jonathan Kho, Aklant K. Bhowmick, Paul Torrey +4

The James Webb Space Telescope (JWST) has identified a large population of supermassive (-) black holes (BHs) in the early universe (-). C…

astro-ph.GA2024

Signatures of black hole seeding in the local Universe: Predictions from the BRAHMA cosmological simulations

Aklant K Bhowmick, Laura Blecha, Paul Torrey +8

The first "seeds" of supermassive black holes (BHs) continue to be an outstanding puzzle, and it is currently unclear whether the imprints of early seed formation survive today. He…