Results 111 to 120 of about 1,499,205 (291)

An Anomalous Symmetric Flare Observed in the Single-lined Spectroscopic Binary TIC 380907942: Assessing Self-lensing and Alternative Hypotheses

The Astrophysical Journal
We report the observation of an anomalous flare in the Transiting Exoplanet Survey Satellite light curve of TIC 380907942 (HD 10443), a known single-lined spectroscopic binary.
Nicholas M. Sorabella, Silas G. T. Laycock, Tansu Daylan, Bailey Scott, Dimitris M. Christodoulou, Sayantan Bhattacharya   +5 more
doaj   +1 more source

Massive Stars and their Compact Remnants in High-mass X-ray Binaries

, 2005
In a high-mass X-ray binary (HMXB) a massive star interacts with a neutron-star or black-hole companion in various ways. The gravitational interaction enables the measurement of fundamental parameters such as the mass of both binary components, providing important constraints on the evolutionary history of the system, the equation of state of matter at
Kaper, L., van der Meer, A.
openaire   +3 more sources

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

Advanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu, Hao Jiang, Xingsi Liu, Fakun Wang, Yang Peng, Qi Jie Wang, Weibo Gao, Xingzhan Wei, Cheng‐Wei Qiu   +8 more
wiley   +1 more source

Enhanced magnetic activity in rapidly rotating binary stars

Stellar activity is fundamental to stellar evolution and the formation and habitability of exoplanets. Magnetic surface activity is driven by the interaction between convective motions and rotation in cool stars, resulting in a dynamo process.
Gizon, Laurent, Gehan, Charlotte, Nordhaus, Jason, Tayar, Jamie, Chen, Yajie, Gaulme, Patrick, Ting, Yuan-Sen, Murphy, Simon J., Bedding, Timothy R., Han, Zhanwen, Cameron, Robert H., Hekker, Saskia, Yu, Jie, Bi, Shaolan, Bazot, Michäel   +14 more
core   +1 more source

The First TESS Self-lensing Pulses: Revisiting KIC 12254688

The Astrophysical Journal Letters
We report the observations of two self-lensing pulses from KIC 12254688 in Transiting Exoplanet Survey Satellite (TESS) light curves. This system, containing an F2V star and white-dwarf companion, was among the first self-lensing binary systems ...
Nicholas M. Sorabella, Silas G. T. Laycock, Dimitris M. Christodoulou, Sayantan Bhattacharya   +3 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

The Evolution of Aerosol Jet Printing, A Review: Enhancing Material Versatility and Improvements for Next‐Generation Applications

Advanced Materials Technologies, EarlyView.
Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee, Rocco Lupoi, Michael J. Gibbons   +2 more
wiley   +1 more source

Mapeamento espectral de discos de acréscimo em variáveis cataclísmicas [PDF]

, 2008
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Física.Esta tese de doutorado é a continuação da dissertação de mestrado defendida em 2004. Nosso projeto visa analisar, com
Saito, Roberto Kalbusch
core  

New Potential Ultracompact X-Ray Binaries for Space-based Gravitational-wave Detectors from a Low-mass Main-sequence Companion Channel

The Astrophysical Journal
We investigate the formation and evolution of ultracompact X-ray binaries (UCXBs) using the COMPAS binary evolution code, starting from the zero-age main sequence (MS).
Minghua Chen, Jinzhong Liu
doaj   +1 more source

In Situ Integrated Titanium Oxide Synaptic Phototransistor Enabling Multimodal Plasticity and Noise‐Robust Selective Attention

Advanced Materials Technologies, EarlyView.
An in situ integrated TiO2/SiOx/Al2O3 synaptic phototransistor couples ultraviolet and electrical stimuli within a scalable, CMOS‐compatible oxide stack. Multimodal plasticity, spike‐timing‐dependent learning, and bee‐inspired associative conditioning are achieved through trap‐mediated temporal dynamics.
Youngbin Yoon, Jaehee Lee, Jeongwook Kwon, Yongki Kim, Myunghun Shin, Jung Wook Lim   +5 more
wiley   +1 more source