JWST-TST High Contrast: Asymmetries, dust populations and hints of a collision in the $β$ Pictoris disk with NIRCam and MIRI

Posted by dbos MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Isabel Rebollido, Christopher C. Stark, Jens Kammerer, Marshall D. Perrin, Kellen Lawson | Summary: We present the first JWST MIRI and NIRCam observations of the prominent debris disk around Beta Pictoris. Coronagraphic observations in 8 filters spanning from 1.8 to 23~$mu$m provide an unprecedentedly clear view of […]


Continue.. JWST-TST High Contrast: Asymmetries, dust populations and hints of a collision in the $β$ Pictoris disk with NIRCam and MIRI

Nonparametric worst-case bounds for publication bias on the summary receiver operating characteristic curve

Posted by dbos UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Yi Zhou, Ao Huang, Satoshi Hattori, , | Summary: The summary receiver operating characteristic (SROC) curve has been recommended as one important meta-analytical summary to represent the accuracy of a diagnostic test in the presence of heterogeneous cutoff values. However, selective publication of diagnostic studies for meta-analysis […]


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The Kinematic and Chemical Properties of the Close-in Planet Host Star 8 UMi

Posted by dbos Peking

Kavli Affiliate: Huawei Zhang | First 5 Authors: Huiling Chen, Yang Huang, Wei Zhu, Timothy C. Beers, Renjing Xie | Summary: A recent study by Hon et al. reported that a close-in planet around the red clump star, 8 UMi, should have been engulfed during the expansion phase of its parent star’s evolution. They explained […]


Continue.. The Kinematic and Chemical Properties of the Close-in Planet Host Star 8 UMi

The Kinematic and Chemical Properties of the Close-in Planet Host Star 8 UMi

Posted by dbos Peking

Kavli Affiliate: Huawei Zhang | First 5 Authors: Huiling Chen, Yang Huang, Wei Zhu, Timothy C. Beers, Renjing Xie | Summary: A recent study by Hon et al. reported that a close-in planet around the red clump star, 8 UMi, should have been engulfed during the expansion phase of the stellar evolution. They explained the […]


Continue.. The Kinematic and Chemical Properties of the Close-in Planet Host Star 8 UMi

EEG responses to rapidly unfolding stochastic sounds reflect precision tracking

Posted by dbos Hopkins

Kavli Affiliate: Mounya Elhilali | Authors: Sijia Zhao, Benjamin Skerritt-Davis, Mounya Elhilali, Frederic Dick and Maria Chait | Summary: The brain is increasingly viewed as a statistical learning machine, where our sensations and decisions arise from the intricate interplay between bottom-up sensory signals and constantly changing expectations regarding the surrounding world. Which statistics does the […]


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On the Physical Nature of Ly$α$ Transmission Spikes in High Redshift Quasar Spectra

Posted by dbos Chicago

Kavli Affiliate: Nickolay Gnedin | First 5 Authors: Hanjue Zhu, Nickolay Gnedin, Camille Avestruz, , | Summary: We investigate Lyman-alpha (Ly$alpha$) transmission spikes at $5.2 < z < 6.8$ using synthetic quasar spectra from the “Cosmic Reionization On Computers" simulations. We focus on understanding the relationship between these spikes and the properties of the intergalactic […]


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AstroInformatics: Recommendations for Global Cooperation

Posted by dbos Caltech

Kavli Affiliate: Rana Adhikari | First 5 Authors: Ashish Mahabal, Pranav Sharma, Rana Adhikari, Mark Allen, Stefano Andreon | Summary: Policy Brief on "AstroInformatics, Recommendations for Global Collaboration", distilled from panel discussions during S20 Policy Webinar on Astroinformatics for Sustainable Development held on 6-7 July 2023. The deliberations encompassed a wide array of topics, including […]


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Diverse molecular gas excitations in quasar host galaxies at z sim 6

Posted by dbos Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Jianan Li, Ran Wang, Antonio Pensabene, Fabian Walter, Bram P. Venemans | Summary: We present observations using the NOrthern Extended Millimetre Array (NOEMA) of CO and $rm H_{2}O$ emission lines, and the underlying dust continuum in two quasars at $z sim 6$, i.e., P215-16 at $z$ = […]


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Electric field-induced nonreciprocal spin current due to chiral phonons in chiral-structure superconductors

Posted by dbos UCAS

Kavli Affiliate: Mamoru Matsuo | First 5 Authors: Dapeng Yao, Mamoru Matsuo, Takehito Yokoyama, , | Summary: The recent experiment [R. Nakajima, et al., Nature 613, 479 (2023)] has reported a pair of oppositely polarized spins under an alternating electric current in a superconductor with a chiral structure. However, these behaviors cannot be explained by […]


Continue.. Electric field-induced nonreciprocal spin current due to chiral phonons in chiral-structure superconductors

Electric field-induced nonreciprocal spin current due to chiral phonons in chiral-structure superconductors

Posted by dbos UCAS

Kavli Affiliate: Mamoru Matsuo | First 5 Authors: Dapeng Yao, Mamoru Matsuo, Takehito Yokoyama, , | Summary: The recent experiment [R. Nakajima, et al., Nature 613, 479 (2023)] has reported a pair of oppositely polarized spins under an alternating electric current in a superconductor with a chiral structure. However, these behaviors cannot be explained by […]


Continue.. Electric field-induced nonreciprocal spin current due to chiral phonons in chiral-structure superconductors