Results 111 to 120 of about 843,058 (298)
MoonBEAM: A Beyond Earth-orbit Gamma-ray Burst Detector for Multi-Messenger Astronomy [PDF]
MoonBEAM is a SmallSat concept of deploying gamma-ray detectors in cislunar space to increase gamma-ray burst detections and improve localization precision with the timing triangulation technique.
Hui, Chiumun M.
core +1 more source
Advanced Science, EarlyView.A thin topological insulator (Bi2Te3) inserted between two single magnetic septuple layers of MnBi2Te4 is shown to convert the intrinsic antiferromagnetic interlayer coupling into robust ferromagnetism. As the Bi2Te3 spacer thickness increases from 1 to 4 quintuple layers, the weakening coercivity, Curie temperature, and interlayer coupling reveal ...
Enayet Hossain +10 more
wiley +1 more source
How Can the Optical Variation Properties of Active Galactic Nuclei Be Unbiasedly Measured?
The Astrophysical JournalThe variability of active galactic nuclei (AGNs) is ubiquitous, but has not yet been understood. Measuring the optical variation properties of AGNs, such as the variation timescale and amplitude, and then correlating them with their fundamental physical ...
Xu-Fan Hu, Zhen-Yi Cai, Jun-Xian Wang
doaj +1 more source
Advanced Science, EarlyView.Resonance Raman spectroscopy is used in combination with other spectroscopic and morphology characterization techniques to unveil the mechanistic origin of the shift in synthetic strategy to alkylthienyl peripheral groups for high‐performing organic photovoltaics.
Hristo Ivov Gonev +13 more
wiley +1 more source
Imperfection in Semiconductors Leading to High Performance Devices
Advanced Science, EarlyView.Crystalline perfection is typically pursued in semiconductors to enhance device performance. However, through modeling and experimental work, we show that defects can be strategically employed in a specific detection regime to increase sensitivity to extreme values. GaN diodes are demonstrated to effectively detect high‐energy proton beams at fluxes as
Jean‐Yves Duboz +8 more
wiley +1 more source
No Evidence for Accretion around the Intermediate-mass Black Hole in Omega Centauri
The Astrophysical JournalFor over a decade, both theoretical predictions and observational studies have suggested that ω Centauri ( ω Cen), the most massive Milky Way globular cluster, might harbor an intermediate-mass black hole (IMBH).
Angiraben D. Mahida +7 more
doaj +1 more source
6U CubeSat for Ultraviolet Time-Domain Astronomy
, 2019 A wide-field ultraviolet observatory for time-domain astronomy utilizing 6U CubeSat is presented. Ultraviolet waveband is one of the unexplored fields in astronomy. Potential targets are short duration transient sources in UV-band: early-phase emission from gravitational wave sources, supernovae shock-breakouts, tidal disruption events around super ...
Yatsu, Yoichi +7 more
openaire +1 more source
Wafer‐Scale Room‐Temperature Processing of Lead‐Free Perovskites for Optoelectronic Applications
Advanced Science, EarlyView.We present the first wafer‐scale, room‐temperature synthesis of lead‐free Cs3Sb2X9 (X = Br, I) perovskite films via solvent‐free magnetron sputtering. The resulting high‐performance photodetectors achieve benchmark responsivity, bandwidth, and detectivity, enabling scalable manufacturing for next‐generation optoelectronics.
Rosanna Mastria +12 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesHigh-quality Extragalactic Legacy-field Monitoring (HELM) is a long-term observing program that photometrically monitors several well-studied extragalactic legacy fields with the Dark Energy Camera (DECam) imager on the CTIO 4 m Blanco telescope.
Ming-Yang Zhuang +48 more
doaj +1 more source
What can Joint Survey Processing Do For Time-Domain Astronomy?
, 2022 Joint Survey Processing (JSP) is the pixel level combination of ground- and space-based datasets. It is particularly important for mitigating source confusion which affects 50% of the sources in deep seeing-limited datasets such as those that will be taken by Rubin/LSST.
openaire +1 more source