activity
20192026
most citedWhy do semi-analytic models predict higher scatter in the stellar mass-halo mass relation than cosmological hydrodynamic simulations?

6 citations · 14 across the 8 of their papers we have counts for

collaborators

11 papers

astro-ph.GA2026

Magnetically Arrested Accretion and Black Hole Spin in a Semi-Analytic Model of Galaxy Formation

Antonio J. Porras-Valverde, Angelo Ricarte, Priyamvada Natarajan +4

We present {\sc Mad Sage}, a semi-analytic model of galaxy formation that couples black hole mass and spin evolution to gas accretion and AGN feedback under magnetically arrested d…

astro-ph.GA2026

Bridging Scales: Multi-Zone GRMHD-Informed Anisotropic AGN Feedback in Galaxies

Kung-Yi Su, Hyerin Cho, Priyamvada Natarajan +6

We present a galaxy-scale black hole (BH) accretion and feedback model incorporating results from multi-zone general relativistic magnetohydrodynamic (GRMHD) simulations spanning t…

astro-ph.GA2026

How does a galaxy's quenching probability depend on its black hole's mass?

Antonio J. Porras-Valverde, John C. Forbes

We develop a parametric toy model to explore how black hole mass scatter and the dependence of the quenching probability per unit time on black hole mass, parameterize…

astro-ph.GA2026

Bridging Scales in Black Hole Accretion and Feedback: Subgrid Prescription from First Principles

Hyerin Cho, Ben S. Prather, Ramesh Narayan +4

Understanding how supermassive black holes (BHs) couple to their host galaxies across a vast spatial and temporal dynamic range remains a central challenge in galaxy evolution. Usi…

astro-ph.GA2025

Bridging scales: Modeling suppressed Bondi accretion on black holes and its impact on galaxy growth

Antonio J. Porras-Valverde, Priyamvada Natarajan, Angelo Ricarte +4

The accretion and feedback processes governing supermassive black hole (SMBH) growth span an enormous range of spatial scales, from the Event Horizon to the circumgalactic medium.…

astro-ph.GA2025

Bridging scales: How much do supermassive black holes grow in the suppressed Bondi regime?

Kung-Yi Su, Angelo Ricarte, Priyamvada Natarajan +6

The co-evolution of supermassive black holes (SMBHs) and their host galaxies remains one of the central open questions in cosmology, rooted in the coupling between accretion, feedb…

astro-ph.GA2025★ 5 cited

Tracking the assembly of supermassive black holes: a comparison of diverse models across cosmic time

Antonio J. Porras-Valverde, Angelo Ricarte, Priyamvada Natarajan +3

Galaxies grow alongside their central supermassive black holes (SMBHs), linked through fueling and feedback. However, the origins and details of this co-evolution remain unclear an…

astro-ph.GA2024★ 1 cited

On the signature of black holes on the quenched stellar mass function

Antonio J. Porras-Valverde, John C. Forbes

As star-forming galaxies approach or exceed a stellar mass around , they are increasingly likely to be quenched in a process generically called mass quenching. Cen…

astro-ph.GA2024★ 1 cited

The redshift evolution of the scaling relation: new insights from cosmological simulations and semi-analytic models

Shashank Dattathri, Priyamvada Natarajan, Antonio J. Porras-Valverde +4

We study the co-evolution of black holes (BHs) and their host galaxies in the ASTRID and Illustris-TNG300 cosmological simulations and the Dark Sage Semi-Analytic Model (SAM), focu…

astro-ph.GA2023★ 6 cited

Why do semi-analytic models predict higher scatter in the stellar mass-halo mass relation than cosmological hydrodynamic simulations?

Antonio J. Porras-Valverde, John C. Forbes, Rachel S. Somerville +4

Semi-analytic models (SAMs) systematically predict higher stellar-mass scatter at a given halo mass than hydrodynamical simulations and most empirical models. Our goal is to invest…

astro-ph.GA2019★ 1 cited

Angular momentum and morphological sequence of massive galaxies through Dark Sage

Antonio J. Porras-Valverde, Kelly Holley-Bockelmann, Andreas A. Berlind +1

We study the present-day connection between galaxy morphology and angular momentum using the {\sc Dark Sage} semi-analytic model of galaxy formation. For galaxies between $ 10^{11}…