First Calculations of Starspot Spectra based on 3D Radiative Magnetohydrodynamics Simulations

Kavli Affiliate: Sara Seager | First 5 Authors: H. N. Smitha, Alexander I. Shapiro, Veronika Witzke, Nadiia M. Kostogryz, Yvonne C. Unruh | Summary: Accurate calculations of starspot spectra are essential for multiple applications in astronomy. The current standard is to represent starspot spectra by spectra of stars that are cooler than the quiet star […]


Continue.. First Calculations of Starspot Spectra based on 3D Radiative Magnetohydrodynamics Simulations

Measurement of the inclusive branching fractions for $B_s^0$ decays into $D$ mesons via hadronic tagging

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle, Belle II Collaborations, :, I. Adachi, L. Aggarwal | Summary: We report measurements of the absolute branching fractions $mathcal{B}(B_s^0 to D_s^{pm} X)$, $mathcal{B}(B_s^0 to D^0/bar{D}^0 X)$, and $mathcal{B}(B_s^0 to D^{pm} X)$, where the latter is measured for the first time. The results are based on a […]


Continue.. Measurement of the inclusive branching fractions for $B_s^0$ decays into $D$ mesons via hadronic tagging

Planets Around Solar Twins/Analogs (PASTA) I.: High precision stellar chemical abundance for 17 planet-hosting stars and the condensation temperature trend

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Qinghui Sun, Sharon Xuesong Wang, Tianjun Gan, Chenyang Ji, Zitao Lin | Summary: The Sun is depleted in refractory elements compared to nearby solar twins, which may be linked to the formation of giant or terrestrial planets. Here we present high-resolution, high signal-to-noise spectroscopic data for 17 […]


Continue.. Planets Around Solar Twins/Analogs (PASTA) I.: High precision stellar chemical abundance for 17 planet-hosting stars and the condensation temperature trend

Understanding World or Predicting Future? A Comprehensive Survey of World Models

Kavli Affiliate: Feng Yuan | First 5 Authors: Jingtao Ding, Yunke Zhang, Yu Shang, Yuheng Zhang, Zefang Zong | Summary: The concept of world models has garnered significant attention due to advancements in multimodal large language models such as GPT-4 and video generation models such as Sora, which are central to the pursuit of artificial […]


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Maximizing Quantum Enhancement in Axion Dark Matter Experiments

Kavli Affiliate: Noah A. Kurinsky | First 5 Authors: Chao-Lin Kuo, Chelsea L. Bartram, Aaron S. Chou, Taj A. Dyson, Noah A. Kurinsky | Summary: We provide a comprehensive comparison of linear amplifiers and microwave photon-counters in axion dark matter experiments. The study is done assuming a range of realistic operating conditions and detector parameters, […]


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GA-NIFS: A galaxy-wide outflow in a Compton-thick mini-BAL quasar at z = 3.5 probed in emission and absorption

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Michele Perna, Santiago Arribas, Xihan Ji, Cosimo Marconcini, Isabella Lamperti | Summary: Studying the distribution and properties of ionised gas in outflows driven by AGN is crucial for understanding the feedback mechanisms at play in extragalactic environments. In this study, we explore the connection between ionised outflows […]


Continue.. GA-NIFS: A galaxy-wide outflow in a Compton-thick mini-BAL quasar at z = 3.5 probed in emission and absorption

Reanalyzing the ringdown signal of GW150914 using the F-statistic method

Kavli Affiliate: Lijing Shao | First 5 Authors: Hai-Tian Wang, Ziming Wang, Yiming Dong, Garvin Yim, Lijing Shao | Summary: The ringdown phase of a gravitational wave (GW) signal from a binary black hole merger provides valuable insights into the properties of the final black hole and serves as a critical test of general relativity […]


Continue.. Reanalyzing the ringdown signal of GW150914 using the F-statistic method

Gravitational Waves from Metastable Cosmic Strings in Supersymmetric New Inflation Model

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Akifumi Chitose, Masahiro Ibe, Shunsuke Neda, Satoshi Shirai, | Summary: Recent observations by pulsar timing arrays (PTAs) indicate a potential detection of a stochastic gravitational wave (GW) background. Metastable cosmic strings have been recognized as a possible source of the observed signals. In this paper, we propose […]


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Identifying the Galactic Substructures in 5D Space Using All-sky RR Lyrae Stars in Gaia DR3

Kavli Affiliate: Huawei Zhang | First 5 Authors: Shenglan Sun, Fei Wang, Huawei Zhang, Xiang-Xiang Xue, Yang Huang | Summary: Motivated by the vast gap between photometric and spectroscopic data volumes, there is great potential in using 5D kinematic information to identify and study substructures of the Milky Way. We identify substructures in the Galactic […]


Continue.. Identifying the Galactic Substructures in 5D Space Using All-sky RR Lyrae Stars in Gaia DR3