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88 papers · 1 filter
Reaction processes among self-propelled particles
Fernando Peruani, Gustavo Sibona
We study a system of self-propelled disks that perform run-and-tumble motion, where particles can adopt more than one internal state. One of those internal states can be transmitte…
High-Resolution Near-Infrared Polarimetry and Sub-Millimeter Imaging of FS Tau A: Possible Streamers in Misaligned Circumbinary Disk System
Yi Yang, Eiji Akiyama, Thayne Currie +56
We analyzed the young (2.8-Myr-old) binary system FS Tau A using near-infrared (H-band) high-contrast polarimetry data from Subaru/HiCIAO and sub-millimeter CO (J=2-1) line emissio…
Dynamical evidence for an early giant planet instability
Rafael Ribeiro de Sousa, Alessandro Morbidelli, Sean N. Raymond +3
The dynamical structure of the Solar System can be explained by a period of orbital instability experienced by the giant planets. While a late instability was originally proposed t…
Hydrodynamic Equations for Flocking Models without Velocity Alignment
Fernando Peruani
The spontaneous emergence of collective motion patterns is usually associated with the presence of a velocity alignment mechanism that mediates the interactions among the moving in…
Large-scales patterns in a minimal cognitive flocking model: incidental leaders, nematic patterns, and aggregates
Lucas Barberis, Fernando Peruani
We study a minimal cognitive flocking model, which assumes that the moving entities navigate using exclusively the available instantaneous visual information. The model consists of…
SUBARU Near-Infrared Imaging Polarimetry of Misaligned Disks Around The SR24 Hierarchical Triple System
Satoshi Mayama, Sebastián Pérez, Nobuhiko Kusakabe +65
The SR24 multi-star system hosts both circumprimary and circumsecondary disks, which are strongly misaligned from each other. The circumsecondary disk is circumbinary in nature. In…