Kavli Affiliate: Ke Wang | First 5 Authors: GLM-4. 5 Team, GLM-4. 5 Team, , , | Summary: We present GLM-4.5, an open-source Mixture-of-Experts (MoE) large language model with 355B total parameters and 32B activated parameters, featuring a hybrid reasoning method that supports both thinking and direct response modes. Through multi-stage training on 23T tokens […]
Kavli Affiliate: Xian Chen | First 5 Authors: Xian Chen, Xian Chen, , , | Summary: Fine-grained time series data are crucial for accurate and timely online change detection. While both collective anomalies and change points can coexist in such data, their joint online detection has received limited attention. In this research, we develop a […]
Kavli Affiliate: Giorgio Gratta | First 5 Authors: Evan Angelico, Evan Angelico, , , | Summary: As liquid xenon time projection chambers scale to ever-larger sizes, so too do the engineering challenges they pose. We describe a large, flexible, multipurpose test facility capable of supporting the development of a number of key aspects of liquid […]
Kavli Affiliate: Herman L. Marshall | First 5 Authors: Unnati Kashyap, Unnati Kashyap, , , | Summary: We report the X-ray and radio polarization study of the neutron star (NS) low-mass X-ray binary (LMXB) GX 13+1 using the Imaging X-ray Polarimetry Explorer (IXPE) and Very Large Array (VLA). Simultaneous Neutron Star Interior Composition Explorer (NICER) […]
Kavli Affiliate: Emil J. Martinec | First 5 Authors: Emil J. Martinec, Emil J. Martinec, , , | Summary: Supergravity solutions describing supersymmetric rotating bound states of NS fivebranes, fundamental strings and momentum can sometimes have an ergoregion but no horizon. In such supersymmetric ergoregions, there is an unusual feature that there exist BPS "excitations" […]
Kavli Affiliate: Erin Kara | First 5 Authors: XRISM Collaboration, XRISM Collaboration, , , | Summary: We present results from XRISM/Resolve observations of the core of the galaxy cluster Abell 2319, focusing on its kinematic properties. The intracluster medium (ICM) exhibits temperatures of approximately 8 keV across the core, with a prominent cold front and […]
Kavli Affiliate: Eric Miller | First 5 Authors: Arnab Sarkar, Arnab Sarkar, , , | Summary: We present $sim$500 ks XRISM observations covering the central and two northern regions of the Abell 2029 galaxy cluster. Resolve enables us to distinguish multiple emission lines from hydrogen-like and helium-like iron (Fe) ions. This study focuses on the […]
Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Yuji Tachikawa, Yuji Tachikawa, , , | Summary: We construct a new invariant of two-dimensional $mathcalN=(0,1)$ supersymmetric quantum field theories (SQFTs), under a couple of assumptions on the general properties of such SQFTs motivated by considerations in heterotic string theory. This new invariant is in addition to […]
Kavli Affiliate: Herman L. Marshall | First 5 Authors: Ildar Khabibullin, Ildar Khabibullin, , , | Summary: Extended X-ray emission observed in the direction of several molecular clouds in the Central Molecular Zone (CMZ) of our Galaxy exhibits spectral and temporal properties consistent with the `X-ray echo’ scenario. It postulates that the observed signal is […]
Kavli Affiliate: Sara Seager | First 5 Authors: Valeriy Vasilyev, Valeriy Vasilyev, , , | Summary: TRAPPIST-1 is an M8 dwarf hosting seven known exoplanets and is currently one of the most frequently observed targets of the James Webb Space Telescope (JWST). However, it is notoriously active, and its surface is believed to be covered […]