Stability of Oxygenated Groups on Pristine and Defective Diamond Surfaces

Kavli Affiliate: Xiang Zhang | First 5 Authors: Eliezer Oliveira, Chenxi Li, Xiang Zhang, Anand Puthirath, Mahesh R. Neupane | Summary: The surface functionalization of diamond has been extensively studied through a variety of techniques, such as oxidation. Several oxygen groups have been correspondingly detected on the oxidized diamond, such as COC (ester), CO (ketonic), […]


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Van der Waals pi Josephson junctions

Kavli Affiliate: Jie Shan | First 5 Authors: Kaifei Kang, Helmuth Berger, Kenji Watanabe, Takashi Taniguchi, Laszlo Forro | Summary: Proximity-induced superconductivity in a ferromagnet can induce Cooper pairs with a finite center-of-mass momentum. The resultant spatially modulated superconducting order parameter is able to stabilize Josephson junctions (JJs) with pi phase difference in superconductor-ferromagnet heterostructures […]


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Magnetic Spirals in Accretion Flows Originated from Misaligned Magnetic Field

Kavli Affiliate: Feng Yuan | First 5 Authors: Weixiao Wang, Miikka S. Väisälä, Hsien Shang, Ruben Krasnopolsky, Zhi-Yun Li | Summary: Misalignment between rotation and magnetic field has been suggested to be one type of physical mechanisms which can easen the effects of magnetic braking during collapse of cloud cores leading to formation of protostellar […]


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A Robust Hot Subdwarfs Identification Method Based on Deep Learning

Kavli Affiliate: Feng Wang | First 5 Authors: Lei Tan, Ying Mei, Zhicun Liu, Yangping Luo, Hui Deng | Summary: Hot subdwarf star is a particular type of star that is crucial for studying binary evolution and atmospheric diffusion processes. In recent years, identifying Hot subdwarfs by machine learning methods has become a hot topic, […]


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Development and characterization of a fast and low noise readout for the next generation X-ray CCDs

Kavli Affiliate: Sven Herrmann | First 5 Authors: Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel, R. Glenn Morris, Gregory Prigozhin | Summary: The broad energy response, low electronic read noise, and good energy resolution have made X-ray Charge-Coupled Devices (CCDs) an obvious choice for developing soft X-ray astronomical instruments over the last half century. They also […]


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The Origin of the Relation Between Stellar Angular Momentum and Stellar Mass in Nearby Disk-dominated galaxies

Kavli Affiliate: Luis C. Ho | First 5 Authors: Min Du, Luis C. Ho, Hao-Ran Yu, Victor P. Debattista, | Summary: The IllustrisTNG simulations reproduce the observed scaling relation between stellar specific angular momentum (sAM) $j_{rm s}$ and mass $M_{rm s}$ of central galaxies. We show that the local $j_{rm s}$-$M_{rm s}$ relation ${rm log} […]


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The Origin of the Stellar Angular Momentum-Mass Relation: Connecting Galaxies and Halos in IllustrisTNG

Kavli Affiliate: Luis C. Ho | First 5 Authors: Min Du, Luis C. Ho, Hao-Ran Yu, Victor P. Debattista, | Summary: The IllustrisTNG simulations reproduce well the observed scaling relation between specific angular momentum (sAM) $j_{rm s}$ and mass $M_{rm s}$ of galaxies, i.e., the $j_{rm s}$-$M_{rm s}$ relation. This relation develops in disk galaxies […]


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Accretion Disk Size Measurements of Active Galactic Nuclei Monitored by the Zwicky Transient Facility

Kavli Affiliate: Luis C. Ho | First 5 Authors: Wei-Jian Guo, Yan-Rong Li, Zhi-Xiang Zhang, Luis C. Ho, Jian-Min Wan | Summary: We compile a sample of 92 active galactic nuclei (AGNs) at z<0.75 with $gri$ photometric light curves from the archival data of the Zwicky Transient Facility and measure the accretion disk sizes via […]


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Photochemical Runaway in Exoplanet Atmospheres: Implications for Biosignatures

Kavli Affiliate: Sara Seager | First 5 Authors: Sukrit Ranjan, Sara Seager, Zhuchang Zhan, Daniel D. B. Koll, William Bains | Summary: About 2.5 billion years ago, microbes learned to harness plentiful Solar energy to reduce CO$_2$ with H$_2$O, extracting energy and producing O$_2$ as waste. O$_2$ production from this metabolic process was so vigorous […]


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Comparing weak lensing peak counts in baryonic correction models to hydrodynamical simulations

Kavli Affiliate: Jia Liu | First 5 Authors: Max E. Lee, Tianhuan Lu, Zoltán Haiman, Jia Liu, Ken Osato | Summary: Next-generation weak lensing (WL) surveys, such as by the Vera Rubin Observatory’s LSST, the $textit{Roman}$ Space Telescope, and the $textit{Euclid}$ space mission, will supply vast amounts of data probing small, highly nonlinear scales. Extracting […]


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