Results 71 to 80 of about 6,394 (163)

GALACTIC AND EXTRAGALACTIC SUPERNOVA REMNANTS AS SITES OF PARTICLE ACCELERATION

open access: yesActa Polytechnica, 2013
Supernova remnants, owing to their strong shock waves, are likely sources of Galactic cosmic rays. Studies of supernova remnants in X-rays and gamma rays provide us with new insights into the acceleration of particles to high energies. This paper reviews
Manami Sasaki
doaj   +1 more source

Evaluation of Sealing Strength in Multilayer LLDPE Packaging for Impact-Resistant Rice Pouches

open access: yesJurnal Kimia Sains dan Aplikasi
In this study, we evaluate the mechanical integrity, thermal stability, and impact resilience of three different laminated polymer materials—PA/LLDPE, MDO-PE/LLDPE, and BOPE/LLDPE—to assess their suitability for rice packaging applications.
Bayu Krisnamurti   +3 more
doaj   +1 more source

Presupernova Eruptions Triggered by Sudden Energy Deposition in Low-mass Core-collapse Supernova Progenitors

open access: yesThe Astrophysical Journal
In low-mass core-collapse supernova (SN) progenitors, nuclear burning beyond oxygen can become explosive under degenerate conditions, triggering eruptive mass loss before the final explosion.
Shuai Zha   +3 more
doaj   +1 more source

Supernova theory and supernova 1987A

open access: yesThe Astrophysical Journal, 1987
The implications of Supernova 1987A are examined and compared with theoretical expectations. The relatively low luminosity follows from the progenitor having lower than solar abundances. The explosion energy is (1.0-2.0) x 10 to the 51st ergs for a 15 solar mass star.
openaire   +1 more source

The Binary Fraction of B-type Runaway Stars from LAMOST DR8

open access: yesThe Astrophysical Journal
Runaway stars are defined as stars that depart from their birth clusters at high peculiar velocities. There are two main mechanisms for the formation of runaway stars, i.e., the binary-supernova scenario (BSS) and the dynamical ejection scenario (DES ...
Kun Chen   +4 more
doaj   +1 more source

Physics of Neutron Star Crusts

open access: yesLiving Reviews in Relativity, 2008
The physics of neutron star crusts is vast, involving many different research fields, from nuclear and condensed matter physics to general relativity.
Chamel Nicolas, Haensel Pawel
doaj  

Charged-Current Neutrino-Nucleus Scattering off the Even Molybdenum Isotopes

open access: yesAdvances in High Energy Physics, 2012
Neutrinos from supernovae constitute important probes of both the currently unknown supernova mechanisms and of neutrino properties. Reliable information about the nuclear responses to supernova neutrinos is therefore crucial.
E. Ydrefors, J. Suhonen
doaj   +1 more source

Supernova Burst and Diffuse Supernova Neutrino Background Simulator for Water Cherenkov Detectors

open access: yesThe Astrophysical Journal
If a Galactic core-collapse supernova explosion occurs in the future, it will be critical to rapidly alert the community to the direction of the supernova by utilizing neutrino signals in order to enable the initiation of follow-up optical observations ...
Fumi Nakanishi   +3 more
doaj   +1 more source

Performance of SK-Gd’s Upgraded Real-time Supernova Monitoring System

open access: yesThe Astrophysical Journal
Among multimessenger observations of the next Galactic core-collapse supernova, Super-Kamiokande (SK) plays a critical role in detecting the emitted supernova neutrinos, determining the direction to the supernova (SN), and notifying the astronomical ...
Y. Kashiwagi   +239 more
doaj   +1 more source

The demographics of core-collapse supernovae

open access: yesAstronomy & Astrophysics
Context. The observational properties of core-collapse supernovae are shaped by the envelopes of their progenitors. In massive binary systems, mass-transfer drastically alters the pre-supernova structures compared to single stars, which leads to a ...
Ercolino Andrea   +5 more
doaj   +1 more source

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