Results 121 to 130 of about 5,111 (331)
New Symbiotic Stars from LAMOST DR10 Spectra and Multiband Photometry
The Astrophysical JournalThe Symbiotic star (SySt) is a long-period interacting binary system, typically consisting of a white dwarf (WD) and a red giant surrounded by a nebula. These systems are natural astrophysical laboratories for investigating binary star evolution. In this
Jing Chen +7 more
doaj +1 more source
Observational evidence for enhanced magnetic activity of superflare stars
Nature Communications, 2016 Superflares are large explosive events on stellar surfaces, much larger than solar flares, but it remains unclear whether they share the same origin. Here, the authors analysed 48 superflare stars and determine the relation between their chromospheric ...
Christoffer Karoff +13 more
doaj +1 more source
Modelling astronomical adaptive optics - I. The software package caos [PDF]
, 2005 M. Carbillet +4 more
openalex +1 more source
PyAstroPol: A Python package for the instrumental polarization analysis of the astronomical optics. [PDF]
, 2020 Hemanth Pruthvi
openalex +1 more source
Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction
Advanced Science, EarlyView.Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen +5 more
wiley +1 more source
Identifying ∼20,000 Li-rich Giants in the LAMOST Low-resolution Survey
The Astrophysical Journal Supplement SeriesLi-rich giants serve as valuable tracers of stellar evolution and surface enrichment processes, for which a statistically large and homogeneous sample is crucial. Using the massive low-resolution ( R ∼ 1800) spectroscopic dataset from the Large Sky Area
Ming-Yi Ding +10 more
doaj +1 more source
Advanced Science, EarlyView.This study employs cryogenic magneto‐terahertz nanoscopy to reveal the real‐space electrodynamics of the colossal magnetoresistance transition. By capturing the terahertz electrodynamic evolution of field‐driven spin switching, the work unveils the dissipative dynamics of emergent metallic states, providing a high‐frequency view of coupled spin‐charge ...
Samuel Haeuser +6 more
wiley +1 more source
MEMS deformable mirrors in astronomical adaptive optics [PDF]
, 2010 We report on the development of microelectromechanical (MEMS) deformable mirrors designed for ground and space-based astronomical instruments using adaptive optics. These light-weight, low power deformable mirrors will have an active aperture of up to 25.
T. Bifano, P. Bierden, S. Cornelissen
core +1 more source
Advanced Science, EarlyView.Ultraviolet (UV) imagers are important for a variety of applications but often require dedicated semiconductor process flows. Here, a versatile capacitive CMOS platform is transformed into a visible‐blind, multispectral UV imager through post‐CMOS functionalization with solution‐processed metal‐oxide nanoparticles. The UV‐induced photodielectric effect
Suman Kundu +5 more
wiley +1 more source
Ag Nanowire‐Integrated MoS2/ZnO Heterojunctions for Highly Efficient Photogenerated Charge Transfer
Advanced Electronic Materials, Volume 11, Issue 6, May 2025.A versatile strategy is reported for fabricating multi‐dimensional heterojunctions with significantly improved charge transfer capability. By integrating Ag nanowires with a MoS2/ZnO heterojunction, a fourfold increase in surface photovoltage is achieved, reaching 200 mV under visible light illumination.
Anh Thi Nguyen +8 more
wiley +1 more source