Results 121 to 130 of about 31,620 (294)

Two-stage formation of the Moon from accreting fragmentation and resonance captures

Astronomy & Astrophysics
Context. In the canonical Moon-forming model, a Mars-sized object collided with Earth to produce a disk of debris from which the Moon is believed to have accreted. Aims.
Couturier Jérémy, Quillen Alice C., Nakajima Miki   +2 more
doaj   +1 more source

Hidden No More: Spotlight on Tidal Disruption Events in Active Galactic Nuclei

Astronomische Nachrichten, EarlyView.
ABSTRACT Tidal disruption events (TDEs) are typically discovered in previously quiescent galaxies. However, earlier studies have revealed a handful of TDEs occurring in pre‐existing active galactic nuclei (AGN). We discuss AT2019aalc, a promising TDE candidate in an AGN, and compare it to similar sources.
Patrik Milán Veres
wiley   +1 more source

Probing the Spectrum of the Magnetar 4U 0142+61 with JWST

The Astrophysical Journal
JWST observed the magnetar 4U 0142+61 with the Mid-Infrared Instrument (MIRI) and Near Infrared Camera (NIRCam) instruments within a 77 minute time interval on 2022 September 20–21.
Jeremy Hare, George G. Pavlov, Bettina Posselt, Oleg Kargaltsev, Tea Temim, Steven Chen   +5 more
doaj   +1 more source

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

Deep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu, Jiancheng Xiao, Hui Zhou, Xiao Ma, Congcong Hou, Jian Cui, Fujian Yang   +6 more
wiley   +1 more source

MINDS: Detection of an Inner Gas Disk Caused by Evaporating Bodies around HD 172555

The Astrophysical Journal
Mechanisms such as collisions of rocky bodies or cometary activity give rise to dusty debris disks. Debris disks trace the leftover building blocks of planets, and thus also planetary composition.
Matthias Samland, Thomas Henning, Alessio Caratti o Garatti, Teresa Giannini, Jeroen Bouwman, Benoît Tabone, Aditya M. Arabhavi, Göran Olofsson, Manuel Güdel, Nicole Pawellek, Inga Kamp, L. B. F. M. Waters, Dmitry Semenov, Ewine F. van Dishoeck, Olivier Absil, David Barrado, Anthony Boccaletti, Valentin Christiaens, Danny Gasman, Sierra L. Grant, Hyerin Jang, Till Kaeufer, Jayatee Kanwar, Giulia Perotti, Kamber Schwarz, Milou Temmink   +25 more
doaj   +1 more source

Harnessing the power of machine and deep learning for transferring joint species distribution models considering the structure of biotic interactions

Ecography, EarlyView.
The transferability of single or joint species distribution models ((j)SDMs) depends on their ability to predict beyond the observed environmental range and to remain consistent despite shifts in biotic interactions. Transfer accuracy may be improved by recent advances in the application of deep learning that provide greater flexibility and potentially
Marco Basile, Maximilian Pichler, Francesco Valerio, Lorenzo Balducci, Francesco Chianucci, Sérgio Godinho, Francesco Rota, Frédéric Archaux, Christophe Bouget, Gediminas Brazaitis, Thomas Campagnaro, Ettore D'Andrea, Luc De Keersmaeker, Wouter Dekoninck, Pallieter De Smedt, Zoltán Elek, Itziar García‐ Mijangos, Frédéric Gosselin, Marion Gosselin, Andrin Gross, Elena Haeler, Sebastian Kepfer‐ Rojas, Nathalie Korboulewsky, Daniel Kozák, Thibault Lachat, Carlos Miguel Landivar Albis, Anja Leyman, Xiang Liu, Anders Mårell, Radim Matula, Martin Mikoláš, Péter Ódor, Yoan Paillet, Kastytis Šimkevičius, Tommaso Sitzia, Silvia Stofer, Nicolas Strebel, Miroslav Svoboda, Flóra Tinya, Mariana Ujházyová, Kris Vandekerkhove, Kris Verheyen, Michael Wohlwend, Fotios Xystrakis, Sabina Burrascano   +44 more
wiley   +1 more source

The role of the host—Neutrophil biology

Periodontology 2000, EarlyView., 2023
Abstract Neutrophilic polymorphonuclear leukocytes (neutrophils) are myeloid cells packed with lysosomal granules (hence also called granulocytes) that contain a formidable antimicrobial arsenal. They are terminally differentiated cells that play a critical role in acute and chronic inflammation, as well as in the resolution of inflammation and wound ...
Iain L. C. Chapple, Josefine Hirschfeld, Alpdogan Kantarci, Asaf Wilensky, Lior Shapira   +4 more
wiley   +1 more source

The Search for Disk Perturbing Planets Around the Asymmetrical Debris Disk System HD 111520 Using REBOUND

The Astrophysical Journal
Debris disks, which are optically thin, dusty disks around main-sequence stars, are often found to have structures and/or asymmetries associated with planet–disk interactions.
Katie A. Crotts, Brenda C. Matthews
doaj   +1 more source

Enhancing Anode‐Free Lithium Metal Batteries: A Lightweight MPTS‐MXene Current Collector for Superior Performance and Energy Density

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces an MPTS‐modified MXene current collector for anode‐free lithium metal batteries (AFLMBs). A key advantage of MPTS‐MXene is its ultralight weight, only 15% as heavy as standard copper per unit volume. Its special layered structure and Si‐O rich surface help lithium deposit smoothly and flat, while forming a protective layer that ...
Jiawei Ren, Jiayi Zhang, Jingchao Zhang, Jianbo Li, Yonas Tsegaye Megra, Jianchuan Wang, Yong Du, Rong Huang, Yi Cui, Chenguang Liu, Li Yang   +10 more
wiley   +1 more source

Extending the ALMA Census of Circumstellar Disks in the Upper Scorpius OB Association

The Astrophysical Journal
We present Atacama Large Millimeter/submillimeter Array (ALMA) Band 7 continuum (340 GHz) and carbon monoxide (CO) J = 3–2 observations for an extended sample of disks in the Upper Scorpius OB Association (Upper Sco, age ∼10 Myr).
John M. Carpenter, Taran L. Esplin, Kevin L. Luhman, Eric E. Mamajek, Sean M. Andrews   +4 more
doaj   +1 more source