Probing Abundance Variations among Multiple Stellar Populations in the Metal-Poor Globular Cluster NGC 2298 using Gemini-South/GHOST

Posted by dbos MIT

Kavli Affiliate: Anna Frebel | First 5 Authors: Avrajit Bandyopadhyay, Rana Ezzeddine, Vinicius M. Placco, Anna Frebel, David S Aguado | Summary: Studying the abundances in metal-poor globular clusters is crucial for understanding the formation of the Galaxy and the nucleosynthesis processes in the early Universe. We observed 13 red giant stars from the metal-poor […]


Continue.. Probing Abundance Variations among Multiple Stellar Populations in the Metal-Poor Globular Cluster NGC 2298 using Gemini-South/GHOST

Reanalysis of Stage-III cosmic shear surveys: A comprehensive study of shear diagnostic tests

Posted by dbos Chicago

Kavli Affiliate: Chihway Chang | First 5 Authors: Jazmine Jefferson, Yuuki Omori, Chihway Chang, Shrihan Agarwal, Joe Zuntz | Summary: In recent years, weak lensing shear catalogs have been released by various Stage-III weak lensing surveys including the Kilo-Degree Survey, the Dark Energy Survey, and the Hyper Suprime-Cam Subaru Strategic Program. These shear catalogs have […]


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The eROSITA Final Equatorial Depth Survey (eFEDS): SDSS spectroscopic observations of X-ray sources

Posted by dbos Peking

Kavli Affiliate: Claudio Ricci | First 5 Authors: Catarina Aydar, Andrea Merloni, Tom Dwelly, Johan Comparat, Mara Salvato | Summary: We present one of the largest uniform optical spectroscopic surveys of X-ray selected sources to date that were observed as a pilot study for the Black Hole Mapper (BHM) survey. The BHM program of the […]


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SAPPHIRES: Extremely Metal-Poor Galaxy Candidates with $12+{rm log(O/H)}<7.0$ at $zsim5-7$ from Deep JWST/NIRCam Grism Observations

Posted by dbos Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Tiger Yu-Yang Hsiao, Fengwu Sun, Xiaojing Lin, Dan Coe, Eiichi Egami | Summary: Population III stars, the hypothetical first generation metal-free stars, have yet to be discovered. Even after three years of successful JWST operations, studies have shown that most galaxies identified to date at $z > […]


Continue.. SAPPHIRES: Extremely Metal-Poor Galaxy Candidates with $12+{rm log(O/H)}<7.0$ at $zsim5-7$ from Deep JWST/NIRCam Grism Observations

Meta-Learning the Optimal Mixture of Strategies for Online Portfolio Selection

Posted by dbos Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Jiayu Shen, Jia Liu, Zhiping Chen, , | Summary: This paper presents an innovative online portfolio selection model, situated within a meta-learning framework, that leverages a mixture policies strategy. The core idea is to simulate a fund that employs multiple fund managers, each skilled in handling different […]


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The True Stellar Obliquity of a Sub-Saturn Planet from the Tierras Observatory and KPF

Posted by dbos Harvard

Kavli Affiliate: David Charbonneau | First 5 Authors: Patrick Tamburo, Samuel W. Yee, Juliana García-Mejía, Gudmundur Stefánsson, David Charbonneau | Summary: We measure the true obliquity of TOI-2364, a K dwarf with a sub-Saturn-mass ($M_p = 0.18,M_J$) transiting planet on the upper edge of the hot Neptune desert. We used new Rossiter-McLaughlin observations gathered with […]


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Global well-posedness in the critical Besov space of the skew mean curvature flow in $mathbb{R}^d: dgeq 4$

Posted by dbos UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Ning-An Lai, Jie Shao, Yi Zhou, , | Summary: In this paper, we are devoted to studying the global regularity for the skew mean curvature flow with small initial data in $mathbb{R}^d, (dgeq 4)$. By using a new div-curl lemma which was first introduced by the third […]


Continue.. Global well-posedness in the critical Besov space of the skew mean curvature flow in $mathbb{R}^d: dgeq 4$

Global well-posedness in the critical Besov space of the skew mean curvature flow in $mathbb{R}^d: dgeq 4$

Posted by dbos UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Ning-An Lai, Jie Shao, Yi Zhou, , | Summary: In this paper, we are devoted to studying the global regularity for the skew mean curvature flow with small initial data in $mathbb{R}^d, (dgeq 4)$. By using a new div-curl lemma which was first introduced by the third […]


Continue.. Global well-posedness in the critical Besov space of the skew mean curvature flow in $mathbb{R}^d: dgeq 4$

Dynamics of auditory word form encoding in human speech cortex

Posted by dbos UCSF

Kavli Affiliate: Edward Chang | Authors: Yizhen Zhang, Matthew K Leonard, Laura Gwilliams, Ilina Bhaya-Grossman and Edward F Chang | Summary: When we hear continuous speech, we perceive it as a series of discrete words, despite the lack of clear boundaries in the acoustic signal. The superior temporal gyrus (STG) encodes phonetic elements like consonants […]


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The Disks In Scorpius-Centaurus Survey (DISCS) I: Four Newly-Resolved Debris Disks in Polarized Intensity Light

Posted by dbos Stanford

Kavli Affiliate: Bruce Macintosh | First 5 Authors: Justin Hom, Thomas M. Esposito, Katie A. Crotts, Gaspard Duchêne, Jennifer Patience | Summary: The presence of infrared excesses around stars directly correlates to spatially-resolved imaging detections of circumstellar disks at both mm and optical/near-infrared wavelengths. High contrast imagers have resolved dozens of circumstellar disks with scattered […]


Continue.. The Disks In Scorpius-Centaurus Survey (DISCS) I: Four Newly-Resolved Debris Disks in Polarized Intensity Light