activity
20242026
most citedIntroducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

2 citations · 7 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.GA2026

Supermassive Black Hole Assembly from Heavy Seeds with Dynamical Friction in the BRAHMA Simulations: Implications for JWST, LISA, and the Local Universe

Aklant K. Bhowmick, Laura Blecha, Paul Torrey +8

The JWST discoveries of supermassive black holes (BHs) at may provide key insights into their seeding origins. Using new BRAHMA cosmological sim…

astro-ph.GA2026

The LISA Astrophysics MBHcatalogues Project: A comparison of predictions of simulated massive black hole binaries

David Izquierdo-Villalba, Melanie Habouzit, Matteo Bonetti +67

In the hierarchical paradigm of galaxy formation, central massive black holes (MBHs) are expected to coalesce after the merger of their host galaxies. One of the main goals of the…

astro-ph.GA2025

AGN feedback in merging galaxies with a SMUGGLE multiphase ISM

Aneesh Sivasankaran, Laura Blecha, Paul Torrey +6

We study fast nuclear winds driven by Active Galactic Nucleus (AGN) feedback in merging galaxies using high-resolution hydrodynamics simulations. We use Stars and MUltiphase Gas in…

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

Dynamics of low-mass black hole seeds in the BRAHMA simulations using subgrid-dynamical friction: Impact on merger-driven black hole growth in the high redshift Universe

Aklant K. Bhowmick, Laura Blecha, Luke Z. Kelley +7

We analyze the dynamics of low-mass black hole (BH) seeds in the high-redshift () Universe using a suite of and BRAHMA cosmol…

astro-ph.GA2025

Mergers and Recoil in Triple Massive Black Hole Systems from Illustris

Pranav Satheesh, Laura Blecha, Luke Zoltan Kelley

Massive black hole binaries (MBHBs) form through galaxy mergers and are among the loudest sources of gravitational waves (GWs) in the universe. If the binary inspiral time is long,…

astro-ph.GA2025★ 1 cited

The Gravitational Wave Background from Massive Black Holes in the ASTRID Simulation

Nianyi Chen, Tiziana Di Matteo, Yihao Zhou +6

Recent pulsar timing array (PTA) observations have detected nanohertz gravitational waves, likely originating from massive black hole binaries (MBHBs). The detected amplitude is un…

astro-ph.GA2025

Central Cluster Galaxies: A Hotspot for Detectable Gravitational Waves from Black Hole Mergers

Yihao Zhou, Tiziana Di Matteo, Nianyi Chen +6

After Pulsar Timing Arrays (PTAs) have announced the evidence for a low-frequency gravitational wave background (GWB), the continuous waves (CWs) are the next anticipated gravitati…

astro-ph.GA2024★ 1 cited

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…

astro-ph.GA2024★ 2 cited

Growth of high redshift supermassive black holes from heavy seeds in the BRAHMA cosmological simulations: Implications of overmassive black holes

Aklant K Bhowmick, Laura Blecha, Paul Torrey +6

JWST has recently revealed a large population of accreting black holes (BHs) in the early Universe. Even after accounting for possible systematic biases, the high-z $M_*-M_{\rm \rm…

astro-ph.HE2024★ 1 cited

Signatures of Circumbinary Disk Dynamics in Multi-Messenger Population Studies of Massive Black Hole Binaries

Magdalena Siwek, Luke Zoltan Kelley, Lars Hernquist

We investigate the effect of cutting-edge circumbinary disk (CBD) evolution models on massive black hole binary (MBHB) populations and the gravitational wave background (GWB). We s…

astro-ph.GA2024

AGN feedback in isolated galaxies with a SMUGGLE multiphase ISM

Aneesh Sivasankaran, Laura Blecha, Paul Torrey +6

Feedback from active galactic nuclei (AGN) can strongly impact the host galaxies by driving high-velocity winds that impart substantial energy and momentum to the interstellar medi…

astro-ph.GA2024★ 2 cited

Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

Aklant K. Bhowmick, Laura Blecha, Paul Torrey +6

The first "seeds" of supermassive black holes (BH) can range from . However, the lowest mass seeds () are inaccessible to most cosm…