K-Contact Distance for Noisy Nonhomogeneous Spatial Point Data with application to Repeating Fast Radio Burst sources

Kavli Affiliate: Kiyoshi Masui | Summary:This paper introduces an approach to analyze nonhomogeneous Poisson processes (NHPP) observed with noise, focusing on previously unstudied second-order characteristics of the noisy process. Utilizing a hierarchical Bayesian model with noisy data, we estimate hyperparameters governing a physically motivated NHPP intensity. Simulation studies demonstrate the reliability of this methodology in […]


Continue.. K-Contact Distance for Noisy Nonhomogeneous Spatial Point Data with application to Repeating Fast Radio Burst sources

K-Contact Distance for Noisy Nonhomogeneous Spatial Point Data with application to Repeating Fast Radio Burst sources

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: A. M. Cook, Dayi Li, Gwendolyn M. Eadie, David C. Stenning, Paul Scholz | Summary: This paper introduces an approach to analyze nonhomogeneous Poisson processes (NHPP) observed with noise, focusing on previously unstudied second-order characteristics of the noisy process. Utilizing a hierarchical Bayesian model with noisy […]


Continue.. K-Contact Distance for Noisy Nonhomogeneous Spatial Point Data with application to Repeating Fast Radio Burst sources

Revealing EMRI/IMRI candidates with quasiperiodic ultrafast outflows

Kavli Affiliate: Dheeraj Pasham | Summary:The first detection of the quasiperiodic ultrafast outflow in the ASASSN-20qc system was reported by Pasham et al. (2024). The outflow is revealed in the soft X-ray spectra as an absorption feature, which is enhanced periodically every $sim 8.3$ days. The repetitive nature of the ultrafast outflow is tentatively explained […]


Continue.. Revealing EMRI/IMRI candidates with quasiperiodic ultrafast outflows

Revealing EMRI/IMRI candidates with quasiperiodic ultrafast outflows

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Michal Zajaček, Petra Suková, Vladimír Karas, Dheeraj R. Pasham, Francesco Tombesi | Summary: The first detection of the quasiperiodic ultrafast outflow in the ASASSN-20qc system was reported by Pasham et al. (2024). The outflow is revealed in the soft X-ray spectra as an absorption feature, which […]


Continue.. Revealing EMRI/IMRI candidates with quasiperiodic ultrafast outflows

Revealing EMRI/IMRI candidates with quasiperiodic ultrafast outflows

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Michal Zajaček, Petra Suková, Vladimír Karas, Dheeraj R. Pasham, Francesco Tombesi | Summary: The first detection of the quasiperiodic ultrafast outflow in the ASASSN-20qc system was reported by Pasham et al. (2024). The outflow is revealed in the soft X-ray spectra as an absorption feature, which […]


Continue.. Revealing EMRI/IMRI candidates with quasiperiodic ultrafast outflows

The STROBE-X Wide Field Monitor Instrument

Kavli Affiliate: Ronald A. Remillard | First 5 Authors: Ronald A. Remillard, Margarita Hernanz, Jean in ‘t Zand, Paul S. Ray, Valter Bonvicini | Summary: The Wide Field Monitor (WFM) is one of the three instruments on the Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X) mission, which was proposed in response to the NASA […]


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The $R$-Process Alliance: Enrichment of $r$-process Elements in a Simulated Milky Way-like Galaxy

Kavli Affiliate: Anna Frebel | Summary:We study the formation of stars with varying amounts of heavy elements synthesized by the rapid neutron-capture process ($r$-process) based on our detailed cosmological zoom-in simulation of a Milky Way-like galaxy with an $N$-body/smoothed particle hydrodynamics code, ASURA. Most stars with no overabundance in $r$-process elements, as well as the […]


Continue.. The $R$-Process Alliance: Enrichment of $r$-process Elements in a Simulated Milky Way-like Galaxy

NesTools: A Dataset for Evaluating Nested Tool Learning Abilities of Large Language Models

Kavli Affiliate: Xiang Zhang | First 5 Authors: Han Han, Tong Zhu, Xiang Zhang, Mengsong Wu, Hao Xiong | Summary: Large language models (LLMs) combined with tool learning have gained impressive results in real-world applications. During tool learning, LLMs may call multiple tools in nested orders, where the latter tool call may take the former […]


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TESS Giants Transiting Giants. VII. A Hot Saturn Orbiting an Oscillating Red Giant Star

Kavli Affiliate: Alan Levine | Summary:We present the discovery of TOI-7041 b (TIC 201175570 b), a hot Saturn transiting a red giant star with measurable stellar oscillations. We observe solar-like oscillations in TOI-7041 with a frequency of maximum power of $ν_rm max = 218.50pm2.23$ $μ$Hz and a large frequency separation of $Δν= 16.5282pm0.0186$ $μ$Hz. Our […]


Continue.. TESS Giants Transiting Giants. VII. A Hot Saturn Orbiting an Oscillating Red Giant Star