Results 91 to 100 of about 255,861 (341)

Gamma-ray bursts and bursters [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2000
Invited talk at the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, Paris, Dec. 1998. To appear in Nuclear Phys. B, (Proceedings Supplements), Elsevier Science; latex file, 15 pages, 6 figures, uses espcrc2.sty, included; minor ...
openaire   +4 more sources

Ultrahigh‐resolution (λ/10) Femtosecond Laser Writing of Polymer‐Encapsulated Multicolor Perovskite Patterns Beyond the Diffraction Limit

open access: yesAdvanced Functional Materials, EarlyView.
Fabrication of in situ polymer‐encapsulated stable perovskite patterns of arbitrary shapes and pixel arrays with a resolution of 80 nm is reported by the femtosecond (fs) laser (800 nm) super‐resolution writing technique. The two‐photon absorption‐induced laser ablation is attributed to the achieved feature sizes as small as λ/10.
Xuebing Wen   +8 more
wiley   +1 more source

COMPTEL observations of cosmic gamma‐ray bursts [PDF]

open access: yes, 1991
The imaging γ‐ray telescope COMPTEL on board NASA’s Compton Gamma‐Ray Observatory (GRO) has observed many cosmic gamma‐ray bursts during the early mission phase of GRO. COMPTEL records time‐resolved burst spectra over 0.1 MeV to 10 MeV energies, and, for
Bennett, K   +26 more
core   +2 more sources

The impact of star formation and gamma-ray burst rates at high redshift on cosmic chemical evolution and reionization [PDF]

open access: yes, 2014
Recent observations in the total luminosity density have led to significant progress in establishing the star formation rate (SFR) at high redshift. Concurrently observed gamma-ray burst rates have also been used to extract the SFR at high redshift.
E. Vangioni   +6 more
semanticscholar   +1 more source

Gamma-Ray Burst Energetics [PDF]

open access: yesThe Astrophysical Journal, 1999
We estimate the fraction of the total energy in a Gamma-Ray Burst (GRB) that is radiated in photons during the main burst. Random internal collisions among different shells limit the efficiency for converting bulk kinetic energy to photons. About 1% of the energy of explosion is converted to radiation, in 10-1000 kev energy band in the observer frame ...
openaire   +4 more sources

Anionic Citrate‐Based 3D‐Printed Scaffolds for Tunable and Sustained Orthobiologic Delivery to Enhance Tissue Regeneration

open access: yesAdvanced Functional Materials, EarlyView.
A potent anionic citric acid‐based 3D‐printed scaffold is developed for the sustained and controlled release of orthobiologics to enhance orthopedic therapeutic efficacy. Comprehensive in vivo studies demonstrated effective bone fusion and high safety at a low dose of BMP‐2 delivered by the system, establishing it as a promising platform for safe ...
Se‐Hwan Lee   +12 more
wiley   +1 more source

Limits on Fast Radio Burst–like Counterparts to Gamma-Ray Bursts Using CHIME/FRB

open access: yesThe Astrophysical Journal, 2023
Fast radio bursts (FRBs) are a class of highly energetic, mostly extragalactic radio transients lasting for ∼milliseconds. While over 600 FRBs have been published so far, their origins are presently unclear, with some theories for extragalactic FRBs ...
Alice P. Curtin   +23 more
doaj   +1 more source

Afterglows as Diagnostics of Gamma Ray Burst Beaming [PDF]

open access: yes, 1997
If gamma ray bursts are highly collimated, radiating into only a small fraction of the sky, the energy requirements of each event may be reduced by several (up to 4 - 6) orders of magnitude, and the event rate increased correspondingly. The large Lorentz
Rhoads, James E.
core   +3 more sources

LOCALIZATION OF GAMMA-RAY BURSTS USING THE FERMI GAMMA-RAY BURST MONITOR [PDF]

open access: yes, 2014
The Fermi Gamma-ray Burst Monitor (GBM) has detected over 1400 gamma-ray bursts (GRBs) since it began science operations in 2008 July. We use a subset of over 300 GRBs localized by instruments such as Swift, the Fermi Large Area Telescope, INTEGRAL, and ...
V. Connaughton   +27 more
semanticscholar   +1 more source

Multifunctional Polyfluoride Ionogel‐Encapsulated Lithium Anodes for Durable and Safe Pouch Cells under Harsh Conditions

open access: yesAdvanced Functional Materials, EarlyView.
In this work, it is developed a multifunctional polyfluoride ionogel via in situ thermal polymerization to encapsulate lithium metal anodes, integrating flame‐retardant capability, hydrophobicity, dynamic self‐healing behavior, and high ionic conductivity.
Ting Li   +10 more
wiley   +1 more source

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