647 citations · 12.8k across the 134 of their papers we have counts for
137 papers
Not so Fast: Revised Calibration of SIDM Core Collapse
Frank C. van den Bosch, Yarone M. Tokayer
Self-interacting dark matter (SIDM) haloes undergo gravothermal evolution whose late-time behaviour is central to predictions for dense substructure and black-hole seed formation.…
How Good Are Frontier Models at Physics? Expert Re-Grading Reveals Broken Evaluations and Near-Saturation of Leading Benchmarks
Ali Ansari, Haoran Sun, Andy Zeyi Liu +48
Low reported scores on leading physics benchmarks, including those featured in the Artificial Analysis Intelligence Index (2026), suggest that frontier language models still strugg…
Scatter, bias, and chaos of satellite orbits in triaxial dark matter haloes
Barry T. Chiang, Frank C. van den Bosch, Michael A. Keim
The pericentric distances of satellite galaxies govern their tidal stripping, quenching, and survival, yet their orbits are almost universally computed in spherical host haloes, wh…
Self-interacting dark matter promotes bar formation in disk galaxies
Shashank Dattathri, Frank C. van den Bosch, HanYuan Zhang +4
Despite its remarkable success on large scales, the standard CDM paradigm faces persistent small-scale challenges that have motivated alternative models for the dark sector. Sel…
Imprints of tidal interactions on the stellar distribution of satellite galaxies: implications for dark matter deficient galaxies
Zhihao Yin, Go Ogiya, Frank C. van den Bosch
Interactions with the host galaxy strip stars and dark matter from the outer regions of satellite galaxies. Meanwhile, some stars from the central regions can migrate outward due t…
Statistical Predictions of the Accreted Stellar Halos around Milky Way-Like Galaxies
J. Sebastian Monzon, Frank C. van den Bosch, Martin P. Rey
In the CDM paradigm, stellar halos form through the accretion and disruption of satellite galaxies. We introduce new semi-analytic modeling within the SatGen framework to track…
JWST Observations of the Double Nucleus in NGC 4486B: Possible Evidence for a Recent Binary SMBH Merger and Recoil
Behzad Tahmasebzadeh, Monica Valluri, Shashank Dattathri +19
A recent study of the compact elliptical galaxy NGC 4486B using JWST-NIRSpec IFU kinematics confirmed a supermassive black hole (SMBH) of mass (~8% of…
Not all cores are equal: Phase-space origins of dynamical friction, stalling and buoyancy
Shashank Dattathri, Frank C. van den Bosch, Uddipan Banik +4
Dynamical friction governs the orbital decay of massive perturbers within galaxies and dark matter halos, yet its standard Chandrasekhar formulation fails in systems with cores of…
BASILISK III. Stress-testing the Conditional Luminosity Function model
Kaustav Mitra, Frank C. van den Bosch
The Conditional Luminosity Function (CLF) is an effective and flexible way of characterizing the galaxy-halo connection. However, it is subject to a particular choice for its param…
BASILISK II. Improved Constraints on the Galaxy-Halo Connection from Satellite Kinematics in SDSS
Kaustav Mitra, Frank C. van den Bosch, Johannes U. Lange
Basilisk is a novel Bayesian hierarchical method for inferring the galaxy-halo connection, including its scatter, using the kinematics of satellite galaxies extracted from a redshi…
Denser Environments Cultivate Larger Galaxies: A Comprehensive Study beyond the Local Universe with 3 Million Hyper Suprime-Cam Galaxies
Aritra Ghosh, C. Megan Urry, Meredith C. Powell +5
The relationship between galaxy size and environment has remained enigmatic, with over a decade of conflicting results. We present one of the first comprehensive studies of the var…
Entrainment of Hot Gas into Cold Streams: The Origin of Excessive Star-formation Rates at Cosmic Noon
Han Aung, Nir Mandelker, Avishai Dekel +3
We explore the evolution of cold streams from the cosmic web that feed galaxies through their shock-heated circumgalactic medium (CGM) at cosmic noon, . In addition to…
The Structure and Dynamics of Massive High- Cosmic-Web Filaments: Three Radial Zones in Filament Cross-Sections
Yue Samuel Lu, Nir Mandelker, S. Peng Oh +5
We analyse the internal structure and dynamics of cosmic-web filaments that connect massive high- haloes. Our analysis is based on a high-resolution AREPO cosmological simulatio…
On the Dynamical Heating of Dwarf Galaxies in a Fuzzy Dark Matter Halo
Dhruba Dutta Chowdhury, Frank C. van den Bosch, Pieter van Dokkum +3
Fuzzy Dark Matter (FDM), consisting of ultralight bosons, is an intriguing alternative to Cold Dark Matter. Numerical simulations solving the Schrödinger-Poisson (SP) equation, whi…
A Comprehensive Perturbative Formalism for Phase Mixing in Perturbed Disks. II. Phase Spirals in an Inhomogeneous Disk Galaxy with a Non-responsive Dark Matter Halo
Uddipan Banik, Frank C. van den Bosch, Martin D. Weinberg
We develop a linear perturbative formalism to compute the response of an inhomogeneous stellar disk embedded in a non-responsive dark matter halo to perturbations like bars, spiral…
A candidate runaway supermassive black hole identified by shocks and star formation in its wake
Pieter van Dokkum, Imad Pasha, Maria Luisa Buzzo +13
The interaction of a runaway supermassive black hole (SMBH) with the circumgalactic medium (CGM) can lead to the formation of a wake of shocked gas and young stars behind it. Here…
A Comprehensive Perturbative Formalism for Phase-Mixing in Perturbed Disks. I. Phase spirals in an Infinite, Isothermal Slab
Uddipan Banik, Martin D. Weinberg, Frank C. van den Bosch
Galactic disks are highly responsive systems that often undergo external perturbations and subsequent collisionless equilibration, predominantly via phase-mixing. We use linear per…
Quenching in Cosmic Sheets: Tracing the Impact of Large Scale Structure Collapse on the Evolution of Dwarf Galaxies
Imad Pasha, Nir Mandelker, Frank C. van den Bosch +2
Dwarf galaxies are thought to quench primarily due to environmental processes most typically occurring in galaxy groups and clusters or around single, massive galaxies. However, at…
Evidence of Galaxy Assembly Bias in SDSS DR7 Galaxy Samples from Count Statistics
Kuan Wang, Yao-Yuan Mao, Andrew R. Zentner +4
We present observational constraints on the galaxy-halo connection, focusing particularly on galaxy assembly bias, from a novel combination of counts-in-cylinders statistics, $P(N_…
Dynamical Friction, Buoyancy and Core-Stalling -- I. A Non-perturbative Orbit-based Analysis
Uddipan Banik, Frank C. van den Bosch
We examine the origin of dynamical friction using a non-perturbative, orbit-based approach. Unlike the standard perturbative approach, in which dynamical friction arises from the L…
On the Tidal Formation of Dark Matter Deficient Galaxies
Go Ogiya, Frank C. van den Bosch, Andreas Burkert
Previous studies have shown that dark matter deficient galaxies (DMDG) such as NGC1052-DF2 (hereafter DF2) can result from tidal stripping. An important question, though, is whethe…
SatGen -- II. Assessing the impact of a disc potential on subhalo populations
Sheridan B. Green, Frank C. van den Bosch, Fangzhou Jiang
The demographics of dark matter substructure depend sensitively on the nature of dark matter. Optimally leveraging this probe requires accurate theoretical predictions regarding th…
Thermal Instabilities and Shattering in the High-Redshift WHIM: Convergence Criteria and Implications for Low-Metallicity Strong HI Absorbers
Nir Mandelker, Frank C. van den Bosch, Volker Springel +5
Using a novel suite of cosmological simulations zooming in on a Mpc-scale intergalactic sheet or "pancake" at z~3-5, we conduct an in-depth study of the thermal properties and HI c…
A Self-Consistent, Time-Dependent Treatment of Dynamical Friction: New Insights regarding Core Stalling and Dynamical Buoyancy
Uddipan Banik, Frank C. van den Bosch
Dynamical friction is typically regarded a secular process, in which the subject ('perturber') evolves very slowly (secular approximation), and has been introduced to the host over…