Tootfinder

GalaxyGenius: A Mock Galaxy Image Generator for Various Telescopes from Hydrodynamical Simulations
Xingchen Zhou, Hang Yang, Nan Li, Qi Xiong, Furen Deng, Xian-Min Meng, Renhao Ye, Shiyin Shen, Peng Wei, Qifan Cui, Zizhao He, Ayodeji Ibitoye, Chengliang Wei, Yuedong Fang
https://arxiv.org/abs/2506.15060

GalaxyGenius: A Mock Galaxy Image Generator for Various Telescopes from Hydrodynamical Simulations
To advance research on galaxies in the era of large-scale sky surveys, we introduce GalaxyGenius, a Python package designed to produce synthetic galaxy images tailored to different telescopes based on hydrodynamical simulations. The package comprises three main modules: data preprocessing, ideal data cube generation, and mock observation. Specifically, the preprocessing module extracts necessary properties of star and gas particles for a selected subhalo from hydrodynamical simulations and crea…

Hydrodynamic theory of wetting by active particles
Noah Grodzinski, Robert L. Jack, Michael E. Cates
https://arxiv.org/abs/2506.14559 https://

Hydrodynamic theory of wetting by active particles
The accumulation of self-propelled particles on repulsive barriers is a widely observed feature in active matter. Despite being implicated in a broad range of biological processes, from biofilm formation to cytoskeletal movement, wetting of surfaces by active particles remains poorly understood. In this work, we study this active wetting by considering a model comprising an active lattice gas, interacting with a permeable barrier under periodic boundary conditions, for which an exact hydrodynam…

Turbulent stretching of dumbbells with hydrodynamic interactions: an analytical study
Jason R. Picardo, Dario Vincenzi
https://arxiv.org/abs/2506.14282 htt…

Turbulent stretching of dumbbells with hydrodynamic interactions: an analytical study
We study the stretching of an elastic dumbbell in a turbulent flow, with the aim of understanding and quantifying the effect of hydrodynamic interactions (HI) between the beads of the dumbbell. Adopting the Batchelor-Kraichnan model for the flow, we derive a Fokker-Planck equation and solve it analytically to obtain the probability distribution of the dumbbell's extension. Using different formulations of the HI tensor, we find that HI preferentially enhances the stretching of stiff dumbbells, i…

"I don't want to talk about those things. I see the worst in people, Henry. I don't need to look past seeing them to get all I need. I've built up my hatreds over the years, little by little... I can't keep doing this on my own... with these, umm... people."

Better weather today 😀 Doing the running belt with water now too, sucks to be without hydration even on these short runs in higher temps. Also made a friend (non-human) 😏
#running #runnersofmastodon

Thermalization from quantum entanglement: jet simulations in the massive Schwinger model
Adrien Florio, David Frenklakh, Sebastian Grieninger, Dmitri E. Kharzeev, Andrea Palermo, Shuzhe Shi
https://arxiv.org/abs/2506.14983

Thermalization from quantum entanglement: jet simulations in the massive Schwinger model
We investigate the emergence of thermalization in a quantum field-theoretic model mimicking the production of jets in QCD -- the massive Schwinger model coupled to external sources. Specifically, we compute the expectation values of local operators as functions of time and compare them to their thermal counterparts, quantify the overlap between the evolving density matrix and the thermal one, and compare the dynamics of the energy-momentum tensor to predictions from relativistic hydrodynamics. …

Energy Spectrum and Mass Composition of Ultra-High-Energy Cosmic Rays Originating from Relativistic Jets of Nearby Radio Galaxies
Jeongbhin Seo (Department of Physics, College of Natural Sciences, UNIST, Korea, Los Alamos National Laboratory, Theoretical Division, USA), Dongsu Ryu (Department of Physics, College of Natural Sciences, UNIST, Korea), Hyesung Kang (Department of Earth Sciences, Pusan National University, Korea)

Energy Spectrum and Mass Composition of Ultra-High-Energy Cosmic Rays Originating from Relativistic Jets of Nearby Radio Galaxies
Relativistic jets of radio galaxies (RGs) are possible sources of ultra-high-energy cosmic rays (UHECRs). Recent studies combining relativistic hydrodynamic simulations with Monte Carlo particle transport have demonstrated that UHECRs can be accelerated to energies beyond $10^{20}$ eV through shocks, turbulence, and relativistic shear in jet-induced flows of Fanaroff-Riley (FR) type RGs. The resulting time-asymptotic UHECR spectrum is well modeled by a double power law with an ``extended'' expo…

Random organization criticality with long-range hydrodynamic interactions
Tristan Jocteur, Cesare Nardini, Eric Bertin, Romain Mari
https://arxiv.org/abs/2506.14330

Random organization criticality with long-range hydrodynamic interactions
Driven soft athermal systems may display a reversible-irreversible transition between an absorbing, arrested state and an active phase where a steady-state dynamics sets in. A paradigmatic example consists in cyclically sheared suspensions under stroboscopic observation, for which in absence of contacts during a shear cycle particle trajectories are reversible and the stroboscopic dynamics is frozen, while contacts lead to diffusive stroboscopic motion. The Random Organization Model (ROM), whic…

Unraveling structural and magnetic information during growth of nanocrystalline SrFe12O19
Cecilia Granados-Miralles, Matilde Saura-M\'uzquiz, Espen D. B{\o}jesen, Kirsten M. {\O}. Jensen, Henrik L. Andersen, Mogens Christensen
https://arxiv.org/abs/2506.14332

Unraveling structural and magnetic information during growth of nanocrystalline SrFe12O19
The hydrothermal synthesis of magnetic strontium hexaferrite (SrFe12O19) nanocrystallites was followed in situ using synchrotron powder X-ray diffraction. For all the studied temperatures, the formation of SrFe12O19 happened through an intermediate crystalline phase, identified as the so-called six-line ferrihydrite (FeOOH). The presence of FeOOH has been overlooked in previous studies on hydrothermally synthesized SrFe12O19, despite the phase having a non-trivial influence on the magnetic prop…

An Annotated Translation of D. Bernoulli's "A New Theory on the Motion of Waters Through Channels of Any Kind"
Sylvio R. Bistafa
https://arxiv.org/abs/2506.14905

An Annotated Translation of D. Bernoulli's "A New Theory on the Motion of Waters Through Channels of Any Kind"
This paper presents an annotated English translation of Daniel Bernoulli's 1727 work A New Theory on the Motion of Waters through Channels of Any Kind, originally published in the Commentarii Academiae Scientiarum Imperialis Petropolitanae. Written over a decade before his renowned Hydrodynamica (1738), this early treatise reveals D. Bernoulli's foundational approach to fluid motion based on the conservation of vis viva-the kinetic energy of moving bodies-at a time when the principle was still …