Kavli Affiliate: Feng Wang | First 5 Authors: Kimi Team, Kimi Team, , , | Summary: We introduce Kimi K2, a Mixture-of-Experts (MoE) large language model with 32 billion activated parameters and 1 trillion total parameters. We propose the MuonClip optimizer, which improves upon Muon with a novel QK-clip technique to address training instability while […]
Kavli Affiliate: Ke Wang | First 5 Authors: Ke Wang, Ke Wang, , , | Summary: The Schr"odinger-Poisson (SP) equations predict fuzzy dark matter (FDM) solitons. Given the FDM mass $sim10^-20rm~eV/c^2$, the FDM soliton in the Milky Way is massive $sim 10^7~M_odot$ but diffuse $sim 10rm~pc$. Therefore, this FDM soliton can serve as a gravitational […]
Kavli Affiliate: Zheng Zhu | First 5 Authors: Wei Cui, Wei Cui, , , | Summary: Humanoid robot technology is advancing rapidly, with manufacturers introducing diverse heterogeneous visual perception modules tailored to specific scenarios. Among various perception paradigms, occupancy-based representation has become widely recognized as particularly suitable for humanoid robots, as it provides both rich […]
Kavli Affiliate: Feng Wang | First 5 Authors: Yuhong Zhang, Yuhong Zhang, , , | Summary: Animation colorization plays a vital role in animation production, yet existing methods struggle to achieve color accuracy and temporal consistency. To address these challenges, we propose textbfAnimeColor, a novel reference-based animation colorization framework leveraging Diffusion Transformers (DiT). Our approach […]
Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Tajan H. de Amorim, Tajan H. de Amorim, , , | Summary: With its two stellar eclipses and two disk attenuations per binary orbit, V658 Carinae stands out as the first clear eclipsing Be + sdOB system. This rare alignment offers a unique opportunity to probe […]
Kavli Affiliate: Lars Bildsten | First 5 Authors: Gabriel Kumar, Gabriel Kumar, , , | Summary: Supernovae in binary star systems involve a hydrodynamical interaction between the ejecta and a binary companion. This collision results in shock heating and a modified density structure for the ejecta, both of which affect the light curve. As highlighted […]
Kavli Affiliate: Feng Yuan | First 5 Authors: Haojie Xia, Haojie Xia, , , | Summary: We investigate the synchrotron emission signatures of shocks driven by active galactic nucleus (AGN) wind in elliptical galaxies based on our two-dimensional axisymmetric hydrodynamic $textitMACER$ numerical simulations. Using these simulation data, we calculate the synchrotron radiation produced by nonthermal […]
Kavli Affiliate: Subo Dong | First 5 Authors: B. JoHantgen, B. JoHantgen, , , | Summary: Dipper stars are extrinsically variable stars with deep dimming events due to extended, often dusty, structures produced by a wide range of mechanisms such as collisions, protoplanetary evolution or stellar winds. ASAS-SN has discovered 12 dipper-like objects as part […]
Kavli Affiliate: Aaron Roodman | First 5 Authors: Riley Clarke, Riley Clarke, , , | Summary: We present the first derivation of a stellar flare temperature profile from single-band photometry. Stellar flare DWF030225.574-545707.45129 was detected in 2015 by the Dark Energy Camera as part of the Deeper, Wider, Faster Programme. The brightness ($Delta m_g = […]
Kavli Affiliate: Aaron Roodman | First 5 Authors: Riley Clarke, Riley Clarke, , , | Summary: We present the first derivation of a stellar flare temperature profile from single-band photometry. Stellar flare DWF030225.574-545707.45129 was detected in 2015 by the Dark Energy Camera as part of the Deeper, Wider, Faster Programme. The brightness ($Delta m_g = […]