Results 111 to 120 of about 243,781 (346)

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

open access: yesAdvanced Materials, EarlyView.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner   +4 more
wiley   +1 more source

Multipoint Detection of GRB221009A’s Propagation through the Heliosphere

open access: yesThe Astrophysical Journal Letters, 2023
We present the results of processing the effects of the powerful gamma-ray burst GRB221009A captured by the charged particle detectors (electrostatic analyzers and solid-state detectors) on board spacecraft at different points in the heliosphere on 2022 ...
Andrii Voshchepynets   +11 more
doaj   +1 more source

Choked Jets and Low-Luminosity Gamma-Ray Bursts as Hidden Neutrino Sources [PDF]

open access: yes, 2015
We consider gamma-ray burst (GRB) jets that are choked by extended material as sources of high-energy cosmic neutrinos. We take into account the jet propagation physics both inside the progenitor star and the surrounding dense medium.
Nicholas Senno, K. Murase, P. Mészáros
semanticscholar   +1 more source

Reclassification of gamma-ray bursts [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
We have applied two different automatic classifier algorithms to the BATSE Current GRB Catalog data and we obtain three different classes of GRBs. Our results confirm the existence of a third, intermediate class of GRBs, with mean duration \sim 25-50 s, as deduced from a cluster analysis and from a neural network algorithm.
Ramon Canal   +3 more
openaire   +4 more sources

Ultrafast Laser Synthesis of Zeolites

open access: yesAdvanced Materials, EarlyView.
The study presents a novel ultrafast laser‐driven synthesis technique for zeolites directly in liquid. Laser pulses create a microscopic reactor that controls reaction kinetics at femto‐ and picosecond timescales. Nonlinear light‐matter interactions drive nucleation and growth, allowing the process to be paused at any stage of self‐assembly.
Sezin Galioglu   +11 more
wiley   +1 more source

A Cosmological Fireball with 16% Gamma-Ray Radiative Efficiency

open access: yesThe Astrophysical Journal Letters, 2023
Gamma-ray bursts (GRBs) are the most powerful explosions in the universe. How efficiently the jet converts its energy to radiation is a long-standing problem, which is poorly constrained.
Liang Li   +11 more
doaj   +1 more source

Photospheric Emission of Gamma-Ray Bursts [PDF]

open access: yes, 2017
We review the physics of GRB production by relativistic jets that start highly opaque near the central source and then expand to transparency. We discuss dissipative and radiative processes in the jet and how radiative transfer shapes the observed ...
A. Beloborodov, P. Mészáros
semanticscholar   +1 more source

Gamma-ray bursts as hypernovae [PDF]

open access: yesFourth Huntsville gamma-ray burst symposium, 1998
12 pages, latex, uses aaspp4.sty, no figures, submitted to ApJ ...
openaire   +3 more sources

Advances in Photonic Materials and Integrated Devices for Smart and Digital Healthcare: Bridging the Gap Between Materials and Systems

open access: yesAdvanced Materials, EarlyView.
This article summarizes significant technological advancements in materials, photonic devices, and bio‐interfaced systems, which demonstrate successful applications for impacting human healthcare via improved therapies, advanced diagnostics, and on‐skin health monitoring.
Seunghyeb Ban   +5 more
wiley   +1 more source

Synchrotron Radiation Dominates the Extremely Bright GRB 221009A

open access: yesThe Astrophysical Journal Letters, 2023
The brightest gamma-ray burst, GRB 221009A, has spurred numerous theoretical investigations, with particular attention paid to the origins of ultrahigh-energy TeV photons during the prompt phase.
Jun Yang   +32 more
doaj   +1 more source

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