Correlation Between X-Ray and Cosmic Neutrino Sources: From Obscured AGN to Blazars

Posted by klaurent Peking

Kavli Affiliate: Claudio Ricci | Summary:The origin of high-energy astrophysical neutrinos remains a key open question in multimessenger astrophysics. A correlation between unabsorbed hard X-ray emission and high-energy neutrino luminosity has been reported in a sample of six active galactic nuclei with the highest individual IceCube significances, linking neutrino production to compact, photon-rich environments near […]


Continue.. Correlation Between X-Ray and Cosmic Neutrino Sources: From Obscured AGN to Blazars

The Central Nucleus of the Amygdala Encodes the Motivation to Pursue Ethanol

Posted by dbos Hopkins

Kavli Affiliate: Patricia Janak | Authors: Matilde Castro, Jingren Gu, Teresa Dong, David J. Ottenheimer, Céline Drieu and Patricia H. Janak | Summary: Prior studies implicate the central nucleus of the amygdala (CeA) in reward motivation, yet how this region encodes motivation for ethanol (EtOH) seeking and consumption–and how this compares to encoding of natural […]


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Loss of Adaptive Capacity Drives Climate Vulnerability Across Taxonomic Scales in an Alpine Specialist Species Complex

Posted by dbos UCSD / Salk

Kavli Affiliate: Timothy Brown | Authors: Kristen C Ruegg, Christen M Bossu, Reza Goljani Amirkhiz, Nikunj Goel, Erica Robertson, Timothy M Brown, Kathryn Bernier, Ben J Vernasco, Peri E Bolton, Erik R Funk, Scott A Taylor, Mevin B Hooten and Erica S Zavaleta | Summary: Accelerated warming at high elevations is having a disproportionate impact […]


Continue.. Loss of Adaptive Capacity Drives Climate Vulnerability Across Taxonomic Scales in an Alpine Specialist Species Complex

The Millimeter/X-ray Relation in Rapidly Accreting Supermassive Black Holes at z

Posted by klaurent Peking

Kavli Affiliate: Claudio Ricci | Summary:A tight correlation between nuclear millimeter (mm) and X-ray emission has recently been found in nearby ($z < 0.01$) and low-Eddington ratio ($rm λ_Edd < 0.1$) radio-quiet (RQ) Active Galactic Nuclei (AGN), suggesting a common origin in the hot X-ray corona. We test this relation in nine more distant RQ […]


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Explainable prediction and simulation of complex system dynamics through networks of manifolds

Posted by dbos UCSF

Kavli Affiliate: Loren Frank | Authors: Joseph Park, Cameron Smith, Shih Yi Tseng, Jennifer Guidera, Andrei V Semenov, Stanislav Smirnov, Loren M Frank and Gerald M Pao | Summary: Complex systems such as brains and other interacting biological and physical processes are difficult to represent because they evolve across many variables, scales, and nonlinear interactions. […]


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Introducing the Lumina project: large-volume radiation-hydrodynamic simulations of the epochs of hydrogen and helium reionization

Posted by klaurent MIT

Kavli Affiliate: Mark Vogelsberger | Summary:Understanding how galaxies and active galactic nuclei (AGN) jointly drive the reionization of the intergalactic medium (IGM) across cosmic time remains a major challenge in cosmology. We present Lumina, a large-volume radiation-hydrodynamic simulation that self-consistently follows the coupled evolution of the intergalactic medium, galaxies, and AGN through HI, HeI, and […]


Continue.. Introducing the Lumina project: large-volume radiation-hydrodynamic simulations of the epochs of hydrogen and helium reionization

MM-ComBat and MM-CovBat: Multivariate Frameworks for Joint Harmonization of Multi-Metric Neuroimaging Data

Posted by dbos Hopkins

Kavli Affiliate: Martin Lindquist | Authors: Zheng Ren, Patrick Sadil and Martin Lindquist | Summary: Aggregating neuroimaging data across sites and studies is increasingly common, yet site- and scanner-related batch effects can obscure meaningful biological variation and introduce spurious associations. Although ComBat and its extensions are widely used, they are primarily designed for single-metric harmonization. […]


Continue.. MM-ComBat and MM-CovBat: Multivariate Frameworks for Joint Harmonization of Multi-Metric Neuroimaging Data

Ultra high-energy cosmic rays from relativistic outflows in accretion induced collapse of white dwarfs

Posted by klaurent Tokyo

Kavli Affiliate: Shunsaku Horiuchi | Summary:When a rapidly-rotating, highly magnetized white dwarf (WD) approaches the Chandrashekhar limit through mass accretion, it can undergo an accretion-induced collapse (AIC) to form a proto-neutron star or protomagnetar. The protomagnetar can drive a magnetically-dominated relativistic outflow, whose low entropy can lead to efficient formation of heavy nuclei. In this […]


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CoCo-InEKF: State Estimation with Learned Contact Covariances in Dynamic, Contact-Rich Scenarios

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:Robust state estimation for highly dynamic motion of legged robots remains challenging, especially in dynamic, contact-rich scenarios. Traditional approaches often rely on binary contact states that fail to capture the nuances of partial contact or directional slippage. This paper presents CoCo-InEKF, a differentiable invariant extended Kalman filter that utilizes continuous […]


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An Updated Characterization of Luminous Lyα emitters at the End of Reionization

Posted by klaurent Peking

Kavli Affiliate: Linhua Jiang | Summary:We present a multi-wavelength physical characterization of 14 luminous Ly$α$ emitters (LAEs) at $zapprox6$, integrating deep ground-based Magellan/M2FS spectroscopy with heterogeneous JWST/NIRCam broad- and medium-band imaging. Identified via strong Ly$α$ lines with extreme Ly$α$ luminosities of $>10^42.6$ erg s$^-1$, the sample exhibits very large rest-frame equivalent widths ($gtrsim100$ Å) and […]


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