A cosmological framework for stellar collisions at high redshift in proto-globular clusters, nuclear star clusters, and Little Red Dots

Posted by klaurent MIT

Kavli Affiliate: Mark Vogelsberger | Summary:Observations and cosmological simulations indicate that the early Universe hosted numerous compact, high-density stellar systems, where close encounters and physical collisions between stars were likely common. We develop a bottom-up framework for stellar dynamics in such environments, spanning systems with and without intermediate- and supermassive black holes, and covering regimes […]


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ASAS-SN Rates IV: Constraints on the Kilonova Rate

Posted by klaurent Peking

Kavli Affiliate: Subo Dong | Summary:Kilonovae (KNe) are the electromagnetic signatures of neutron star mergers and are likely the dominant site of cosmic $r$-process nucleosynthesis. However, their intrinsic rate remains poorly constrained due to a paucity of confirmed events. We use the All-Sky Automated Survey for Supernovae (ASAS-SN) to place limits on the rate of […]


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Reconstructing Quantum Dot Charge Stability Diagrams with Diffusion Models

Posted by klaurent Delft

Kavli Affiliate: Lieven Vandersypen | Summary:Efficiently characterizing quantum dot (QD) devices is a critical bottleneck when scaling quantum processors based on confined spins. Measuring high-resolution charge stability diagrams (or CSDs, data maps which crucially define the occupation of QDs) is time-consuming, particularly in emerging architectures where CSDs must be acquired with remote sensors that cannot […]


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Direct evidence for magnetohydrodynamic disk winds driving rotating outflows in protostar HOPS 358

Posted by klaurent Peking

Kavli Affiliate: Gregory Herczeg | Summary:Angular momentum removal is a fundamental requirement for star and planet formation, yet the mechanisms driving this process remain debated. Magnetohydrodynamic disk winds, launched along magnetic field lines from extended disk regions, offer a promising solution, particularly in regions where magnetorotational turbulence is weak. Here we present high-resolution Atacama Large […]


Continue.. Direct evidence for magnetohydrodynamic disk winds driving rotating outflows in protostar HOPS 358