Results 61 to 70 of about 5,905 (257)

Polarization Sensitivity of Chiral Manganese Halide Scintillators Enables High‐Resolution X‐Ray Imaging

open access: yesAdvanced Functional Materials, EarlyView.
Highly luminescent chiral manganese halide crystals are synthesized using chiral ligands, and they exhibit dissymmetry factors up to 1.4 × 10−2 and show X‐ray detection scintillation capability with a light yield of 43 380 photons/MeV and a low detection limit of 0.05198 µGyair·s−1.
Yue Han   +9 more
wiley   +1 more source

A Unified Model of Kilonovae and Gamma-Ray Bursts in Binary Mergers Establishes Neutron Stars as the Central Engines of Short GRBs

open access: yesThe Astrophysical Journal
We expand the theoretical framework by O. Gottlieb et al., which connects binary merger populations with long and short binary gamma-ray bursts (lbGRBs and sbGRBs, respectively), incorporating kilonovae (KNe) as a key diagnostic tool. We show that lbGRBs,
Ore Gottlieb   +3 more
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu   +9 more
wiley   +1 more source

AGILE Observations of a Sample of Repeating Fast Radio Burst Sources

open access: yesThe Astrophysical Journal
Fast radio bursts (FRBs) are millisecond-duration bursts originating from distant sources. They are classified into two categories: non-repeating FRBs, which manifest as singular events, and repeater FRBs (R-FRBs), which emit multiple bursts over time ...
Claudio Casentini   +4 more
doaj   +1 more source

Sensipy: simulate gamma-ray observations of transient astrophysical sources

open access: yes
We present sensipy, an open-source Python toolkit for simulating observations of transient astrophysical sources, particularly in the high-energy (HE, keV-GeV) and very-high-energy (VHE, GeV-TeV) gamma-ray ranges. The most explosive events in our universe are often short-lived, emitting the bulk of their energy in a relatively narrow time window.
Green, Jarred G.   +3 more
openaire   +2 more sources

Discovery of a Nonblazar Gamma-Ray Transient Source Near the Galactic Plane: GRO J1838−04

open access: yesThe Astrophysical Journal, 1997
15 pages, 4 postscript files with figures Accepted for publication in Astrophys. J. Letters, Feb.
Tavani, M.   +8 more
openaire   +2 more sources

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao   +6 more
wiley   +1 more source

Engine-fed Kilonovae (Mergernovae). II. Radiation

open access: yesThe Astrophysical Journal
The radioactive power generated by materials within the ejecta of a binary-neutron-star (BNS) merger powers an optical transient known as a kilonova. When the central remnant of a BNS merger is a long-lived magnetar, it continuously produces a highly ...
Shunke Ai, He Gao, Bing Zhang
doaj   +1 more source

Nanoplatforms for Sentinel and Tumor‐Draining Lymph Node Mapping: From Visualization to Pathway‐Informed Staging

open access: yesAdvanced Healthcare Materials, EarlyView.
Lymphotropic nanoplatforms integrate multimodal imaging with therapeutic guidance to map sentinel and tumor‐draining lymph nodes, revealing functional drainage, metastatic involvement, and nodal accessibility, while providing mechanistic insight to support precision surgical and therapeutic interventions.
Xu Chen   +7 more
wiley   +1 more source

An 11 yr Catalog of Gamma-Ray Transients: A Comprehensive Search with Fermi Gamma-Ray Burst Monitor Data

open access: yesThe Astrophysical Journal Supplement Series
The Gamma-ray Burst Monitor (GBM) on board the Fermi Gamma-ray Space Telescope has produced the largest database of all-sky observations in gamma rays with its continuous data with high time and energy resolutions.
Yuki Kaneko   +5 more
doaj   +1 more source

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