April 2023 – Page 4 – Kavli Institute Pre-Print Publications

X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

Posted by dbos April 25, 2023Stanford

Kavli Affiliate: Roger Romani | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer ({IXPE}) in the high-soft emission state of the black hole X-ray binary 4U 1630–47. The highly significant detection (at $approx50sigma$ confidence level) […]

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X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

Posted by dbos April 25, 2023MIT

Kavli Affiliate: Herman Marshall | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer ({IXPE}) in the high-soft emission state of the black hole X-ray binary 4U 1630–47. The highly significant detection (at $approx50sigma$ confidence level) […]

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The high polarisation of the X-rays from the Black Hole X-ray Binary 4U 1630-47 challenges standard thin accretion disc scenario

Posted by dbos April 25, 2023MIT

Kavli Affiliate: Herman Marshall | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large, energy-dependent X-ray polarisation is observed in 4U 1630-47, a black hole in an X-ray binary, in the high-soft emission state. In this state, X-ray emission is believed to be dominated by a thermal, geometrically […]

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The high polarisation of the X-rays from the Black Hole X-ray Binary 4U 1630-47 challenges standard thin accretion disc scenario

Posted by dbos April 25, 2023Stanford

Kavli Affiliate: Roger Romani | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large, energy-dependent X-ray polarisation is observed in 4U 1630-47, a black hole in an X-ray binary, in the high-soft emission state. In this state, X-ray emission is believed to be dominated by a thermal, geometrically […]

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Layer 5a Corticostriatal Projection Neurons are Selectively Vulnerable in Huntington’s Disease

Posted by klaurent April 24, 2023May 10, 2023Rockefeller

Kavli Affiliate: Nathaniel Heintz | Authors: Christina Pressl, Kert Mätlik, Laura Kus, Paul Darnell, Ji-Dung Luo, Alison R Weiss, William Liguore, Thomas Carroll, David A Davis, Jodi McBride and Nathaniel Heintz | Summary: The properties of the cell types that are most vulnerable in the Huntington’s disease (HD) cortex, the nature of somatic CAG expansion […]

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Cell Type Specific CAG Repeat Expansion and Toxicity of Mutant Huntingtin in Human Striatal and Cerebellar Cell Types

Posted by klaurent April 24, 2023May 10, 2023Rockefeller

Kavli Affiliate: Nathaniel Heintz | Authors: Kert Mätlik, Matthew Baffuto, Laura Kus, David A Davis, Matthew R Paul, Thomas S Carroll and Nathaniel Heintz | Summary: Tissue-specific somatic expansion of the mutant Huntingtin (mHTT) CAG tract and regional degeneration of the brain are key features of Huntington’s disease (HD). However, the relationships between somatic CAG […]

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Insights for disease modeling from single cell transcriptomics of iPSC-derived Ngn2-induced neurons and astrocytes across differentiation time and co-culture

Posted by klaurent April 24, 2023May 10, 2023Hopkins

Kavli Affiliate: Loyal Goff | Authors: Debamitra Das, Shreyash Sonthalia, Genevieve G Stein-O’Brien, Marah Wahbeh, Kyra Feuer, Loyal Goff, Carlo Colantuoni, Vasiliki Machairaki and Dimitrios Avramopoulos | Summary: Trans-differentiation of human induced pluripotent stem cells into neurons via Ngn2-induction (hiPSC-N) has become an efficient system to quickly generate neurons for disease modeling and in vitro […]

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A spatially resolved single cell genomic atlas of the adult human breast

Posted by klaurent April 24, 2023May 10, 2023UCSF

Kavli Affiliate: Robert Edwards | Authors: Tapsi Kumar, Kevin Nee, Runmin Wei, Siyuan He, Quy Nguyen, Shanshan Bai, Kerrigan Blake, Maren Pein, Yanwen Gong, Emi Sei, Min Hu, Anna Casasent, Aatish Thennavan, Jianzhuo Li, Tuan Tran, Ken Chen, Benedikt Nilges, Nachiket Kashikar, Oliver Braubach, Bassem Cheikh, Nadya Nikulina, Hui Chen, Mediate Teshome, Brian Menegaz, Huma […]

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Once Detected, Never Lost: Surpassing Human Performance in Offline LiDAR based 3D Object Detection

Posted by klaurent April 24, 2023May 10, 2023Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Lue Fan, Yuxue Yang, Yiming Mao, Feng Wang, Yuntao Chen | Summary: This paper aims for high-performance offline LiDAR-based 3D object detection. We first observe that experienced human annotators annotate objects from a track-centric perspective. They first label the objects with clear shapes in a track, and […]

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Non-linear optics at twist interfaces in h-BN/SiC heterostructures

Posted by dbos April 24, 2023Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Abhijit Biswas, Rui Xu, Gustavo A. Alvarez, Jin Zhang, Joyce Christiansen-Salameh | Summary: Understanding the emergent electronic structure in twisted atomically thin layers has led to the exciting field of twistronics. However, practical applications of such systems are challenging since the specific angular correlations between the layers […]

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