What Sets the Metallicity of Ultra-Faint Dwarfs?

Kavli Affiliate: Andrey Kravtsov | Summary:We use intergalactic medium (IGM) metallicity distributions from several state-of-the-art cosmological simulations of Milky Way analogs and a semi-analytic model of ultra-faint dwarf galaxy (UFD) formation to model the stellar metallicities of UFDs in MW-like environments. We study simulations with different treatments of star formation, stellar feedback, and Population III […]


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Testing Photometric Techniques for Measuring the Rest-Frame UV Spectral Slope Against JWST PRISM Spectroscopy

Kavli Affiliate: A. C. Davis| First 5 Authors: Alexa M. Morales, Alexa M. Morales, , , | Summary:We present a sample of 53 galaxy spectra at z_spec ~ 5-12 from the JWST CEERS and RUBIES surveys, combining NIRSpec PRISM spectroscopy with NIRCam photometry. We aim to use these data to establish best practices for measuring […]


Continue.. Testing Photometric Techniques for Measuring the Rest-Frame UV Spectral Slope Against JWST PRISM Spectroscopy

Connectome analysis of a cerebellum-like circuit for sensory prediction

Kavli Affiliate: Nathaniel Sawtell | Authors: Krista E Perks, Mariela D Petkova, Salomon Z Muller, Michael Genecin, Adishree Ghatare, Richard Schalek, Yuelong Wu, Michal Januszewski, Viren Jain, Jeff W Lichtman, LF Abbott and Nathaniel B Sawtell | Summary: Transitive inference (TI) is a cognitive process in which decisions are guided by internal representations of abstract […]


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Heat-flux Instabilities of Regularized Kappa Distributed Strahl Electrons Resolved with ALPS

Kavli Affiliate: Dustin M. Schroeder| First 5 Authors: Dustin L. Schröder, Dustin L. Schröder, , , | Summary:The fluid behavior of the solar wind is affected by the heat flux carried by the suprathermal electron populations, especially the electron strahl (or beam) that propagates along the magnetic field. In turn, the electron strahl cannot be […]


Continue.. Heat-flux Instabilities of Regularized Kappa Distributed Strahl Electrons Resolved with ALPS

Bayesian frequency estimation at the fundamental quantum limit

Kavli Affiliate: Lee McCuller | Summary:Searching for a weak signal at an unknown frequency is a canonical task in experiments probing fundamental physics such as gravitational-wave observatories and ultra-light dark matter haloscopes. These state-of-the-art sensors are limited by quantum noise arising from the fundamental uncertainty about the state of the device. Classically, frequency estimation suffers […]


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GRB 240825A: Early Reverse Shock and Its Physical Implications

Kavli Affiliate: Jing Wang | First 5 Authors: Chao Wu, Chao Wu, , , | Summary: Early multiwavelength observations offer crucial insights into the nature of the relativistic jets responsible for gamma-ray bursts and their interaction with the surrounding medium.We present data of GRB 240825A from 17 space- and ground-based telescopes/instruments, covering wavelengths from NIR/optical […]


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Spin-charge bound states and emerging fermions in a quantum spin liquid

Kavli Affiliate: Leon Balents | Summary:The complex interplay between charge and spin dynamics lies at the heart of strongly correlated quantum materials, and it is a fundamental topic in basic research with far reaching technological perspectives. We explore in this paper the dynamics of holes in a single band extended $t-J$ model where the background […]


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Multi-year Polarimetric Monitoring of Four CHIME-Discovered Repeating Fast Radio Bursts with FAST

Kavli Affiliate: Kejia Lee | Summary:In this study, we report multi-year polarization measurements of four repeating FRBs initially discovered by CHIME: FRBs~20190117A, 20190208A, 20190303A, and 20190417A. We observed the four repeating FRBs with FAST, detecting a total of 66 bursts. Two bursts from FRB~20190417A exhibit a circular polarization signal-to-noise ratio greater than 7, with the […]


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Discontinuous percolation via suppression of neighboring clusters in a network

Kavli Affiliate: Hsiao-Mei (Sherry) Cho| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:Our recent study on the Bethe lattice reported that a discontinuous percolation transition emerges as the number of occupied links increases and each node rewires its links to locally suppress the growth of neighboring clusters. However, since the Bethe lattice is a […]


Continue.. Discontinuous percolation via suppression of neighboring clusters in a network

Discontinuous percolation via suppression of neighboring clusters in a network

Kavli Affiliate: Hsiao-Mei (Sherry) Cho| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:Our recent study on the Bethe lattice reported that a discontinuous percolation transition emerges as the number of occupied links increases and each node rewires its links to locally suppress the growth of neighboring clusters. However, since the Bethe lattice is a […]


Continue.. Discontinuous percolation via suppression of neighboring clusters in a network