Kavli Affiliate: Kohei Inayoshi | First 5 Authors: Kohei Inayoshi, Kohei Ichikawa, , , | Summary: The James Webb Space Telescope (JWST) has unveiled numerous massive black holes (BHs) in faint, broad-line active galactic nuclei (AGNs). The discovery highlights the presence of dust-reddened AGN populations, referred to as little red dots (LRDs), more abundant than […]
Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Ruby A. Shi, Bai Yang Wang, Yusuke Iguchi, Motoki Osada, Kyuho Lee | Summary: Infinite-layer nickelates $R_{1-x}$Sr$_{x}$NiO$_{2}$ ($R$ = La, Pr, Nd) are a class of superconductors with structural similarities to cuprates. Although long-range antiferromagnetic order has not been observed for these materials, magnetic effects such […]
Kavli Affiliate: Ke Wang | First 5 Authors: Bin Yang, Yuming Qin, Alain Miranville, Ke Wang, | Summary: In this paper, we shall investigate the existence and upper semicontinuity of pullback attractors for non-autonomous Kirchhoff wave equations with a strong damping in the time-dependent space $X_t$. After deriving the existence and uniqueness of solutions by […]
Kavli Affiliate: Hu Zhan | First 5 Authors: Weiyang Liu, Hu Zhan, Yan Gong, Xin Wang, | Summary: The analysis of the Cosmic Microwave Background (CMB) data acquired by the Atacama Cosmology Telescope (ACT) and the large-scale ($elllesssim1300$) Planck Telescope show a preference for the Early Dark Energy (EDE) theory, which was set to alleviate […]
Kavli Affiliate: Hu Zhan | First 5 Authors: Weiyang Liu, Hu Zhan, Yan Gong, Xin Wang, | Summary: The Hubble tension and $sigma_{8}$ tension are two of the major issues of the standard $Lambda$ Cold Dark Matter ($Lambda$CDM) model. The analysis of the Cosmic Microwave Background (CMB) data acquired by the Atacama Cosmology Telescope (ACT) […]
Kavli Affiliate: Hu Zhan | First 5 Authors: Weiyang Liu, Hu Zhan, Yan Gong, Xin Wang, | Summary: The Hubble tension and $sigma_{8}$ tension are two of the major issues of the standard $Lambda$ Cold Dark Matter ($Lambda$CDM) model. The analysis of the Cosmic Microwave Background (CMB) data acquired by the Atacama Cosmology Telescope (ACT) […]
Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Kanji Mori, Tomoya Takiwaki, Kei Kotake, Shunsaku Horiuchi, | Summary: Core-collapse supernovae can be a copious source of sterile neutrinos, hypothetical particles that mix with active neutrinos. We develop two-dimensional stellar core-collapse models that incorporate the mixing between tau neutrinos and heavy sterile neutrinos — those with […]
Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Kanji Mori, Tomoya Takiwaki, Kei Kotake, Shunsaku Horiuchi, | Summary: Core-collapse supernovae can be a copious source of sterile neutrinos, hypothetical particles that mix with active neutrinos. We develop two-dimensional stellar core-collapse models that incorporate the mixing between tau neutrinos and heavy sterile neutrinos — those with […]
Kavli Affiliate: Jia Liu | First 5 Authors: Hideki Tanimura, Albert Bonnefous, Jia Liu, Sanmay Ganguly, | Summary: In this work, we seek to improve the velocity reconstruction of clusters by using Graph Neural Networks — a type of deep neural network designed to analyze sparse, unstructured data. In comparison to the Convolutional Neural Network […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Jubee Sohn, Margaret J. Geller, Josh Borrow, Mark Vogelsberger, | Summary: We examine the central stellar velocity dispersion of subhalos based on IllustrisTNG cosmological hydrodynamic simulations. The central velocity dispersion is a fundamental observable that links galaxies with their dark matter subhalos. We carefully explore simulated stellar […]