Results 171 to 180 of about 323,430 (318)

Thermal Spectra of Warped and Broken Accretion Disks

The Astrophysical Journal
Black holes may accrete gas with angular momentum vectors misaligned with the black hole spin axis. The resulting accretion disks are subject to Lense–Thirring precession, and hence torque. Analytical calculations and simulations show that Lense–Thirring
J. Speicher, O. Blaes
doaj   +1 more source

Stellar Black Holes Can “Stretch” Supermassive Black Hole Accretion Disks

The Astrophysical Journal Letters
Abstract Stellar black holes (sBHs) are widely believed to exist in the accretion disks of active galactic nuclei (AGNs). Previous studies often focus on the transient emission produced by embedded sBHs. Here, we explore the possible observational consequences of an AGN accretion disk that contains a population of accreting sBHs ...
Shuying Zhou, Mouyuan Sun, Tong Liu, Jian-Min Wang, Jun-Xian Wang, Yongquan Xue   +5 more
openaire   +3 more sources

Flexible Tactile Actuator Arrays With Integrated Electroosmotic Pumps for Wearable Haptic Systems

Advanced Materials Technologies, EarlyView.
1 ×$\times$ 9 and 4 ×$\times$ 4 flexible tactile actuator arrays integrating electroosmotic pumps are developed to deliver pressure and vibration feedback on wearable platforms. Their thin, compliant structure conforms seamlessly to curved body surfaces, providing intimate contact and enhanced haptic sensations.
Heejin Yu, Joonbum Bae
wiley   +1 more source

Accretion-powered stellar winds as a solution to the stellar angular momentum problem [PDF]

, 2005
We compare the angular momentum extracted by a wind from a pre-main-sequence star to the torques arising from the interaction between the star and its Keplerian accretion disk.
Sean P. Matt (21829835), Ralph E. Pudritz (6383960)   +1 more
core   +1 more source

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). VI. Comparison of Dust Evolution Models to AGE-PRO Observations

The Astrophysical Journal
The potential for planet formation of a circumstellar disk depends on the dust and gas reservoirs, which evolve as a function of the disk age. The Atacama Large Millimeter/submillimeter Array AGE-PRO Large Program has measured several disk properties ...
Nicolás T. Kurtovic, Matías Gárate, Paola Pinilla, Ke Zhang, Giovanni P. Rosotti, Rossella Anania, Ilaria Pascucci, Benoît Tabone, Leon Trapman, Dingshan Deng, Miguel Vioque, John Carpenter, Lucas A. Cieza, Laura M. Pérez, Carolina Agurto-Gangas, Anibal Sierra, Dary A. Ruiz-Rodriguez, James Miley, Camilo González-Ruilova, Estephani Torres-Villanueva, Aleksandra Kuznetsova   +20 more
doaj   +1 more source

In Situ Two‐Dimensional Residual Stress Characterization of Thin Films

Advanced Materials Technologies, EarlyView.
An integrated in situ curvature metrology platform combining speckle‐based curvature optical metrology (SCOM) with multi‐beam optical sensors (MOS) enables spatially resolved two‐dimensional curvature mapping of thick sputtered coatings. The SCOM technique provides excellent agreement with MOS while providing an extended measurable curvature range ...
Wai Jue Tan, Wadwan Singhapong, Arindam Majhi, Chris Bowen, Alexander J.G. Lunt, Hongchang Wang, Kawal Sawhney   +6 more
wiley   +1 more source

Simulating supernova feedback in galaxy disks [PDF]

, 2012
In this thesis I examine supernova feedback in hydrodynamical simulations of galaxy disks. Understanding this process entails the numerical evaluation of cooling in radiative shocks, and we present a set of simulations using two widely used numerical ...
CREASEY, PETER,EDWARD, Creasey, Peter Edward   +1 more
core  

exoALMA. XII. Weighing and Sizing exoALMA Disks with Rotation Curve Modelling

The Astrophysical Journal Letters
The exoALMA large program offers a unique opportunity to investigate the fundamental properties of protoplanetary disks, such as their masses and sizes, providing important insights into the mechanism responsible for the transport of angular momentum. In
Cristiano Longarini, Giuseppe Lodato, Giovanni Rosotti, Sean Andrews, Andrew Winter, Jochen Stadler, Andrés Izquierdo, Maria Galloway-Sprietsma, Stefano Facchini, Pietro Curone, Myriam Benisty, Richard Teague, Jaehan Bae, Marcelo Barraza-Alfaro, Gianni Cataldi, Ian Czekala, Nicolás Cuello, Daniele Fasano, Mario Flock, Misato Fukagawa, Himanshi Garg, Cassandra Hall, Iain Hammond, Caitlyn Hardiman, Thomas Hilder, Jane Huang, John D. Ilee, Andrea Isella, Kazuhiro Kanagawa, Geoffroy Lesur, Ryan A. Loomis, Francois Ménard, Ryuta Orihara, Christophe Pinte, Daniel Price, Leonardo Testi, Gaylor Wafflard- Fernandez, Lisa Wölfer, Hsi-Wei Yen, Tomohiro C. Yoshida, Brianna Zawadzki   +40 more
doaj   +1 more source

Environmental interactions in class II systems and their impact on the disk-planet architecture

Astronomy & Astrophysics
Context. Protoplanetary disks evolve in clustered environments where interactions with nearby stars and interstellar gas are common. Such environmental processes, including stellar flybys and gas infall, can significantly perturb disk structures over a ...
Poblete Pedro P., Cuello Nicolás, Pearce Tim D., Alaguero Antoine, Calcino Josh, Price Daniel J., Kuffmeier Michael   +6 more
doaj   +1 more source

Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors

Advanced Materials Technologies, EarlyView.
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang, Imran Khan, Jhen‐De You, Fan‐Hua Kong, Chang‐Mou Wu, Po‐Kai Chiu, Ray‐Hua Horng, Jinn P. Chu   +7 more
wiley   +1 more source