Results 41 to 50 of about 146,178 (259)
Neue Computermodelle erklären Sternexplosionen
Physik in unserer Zeit, Volume 54, Issue 6, Page 274-282, November 2023., 2023 Massereiche Sterne können am Ende ihres Lebens als Supernova explodieren, während ihr Kern zu einem Neutronenstern oder Schwarzen Loch kollabiert. Stetig verbesserte Computermodelle und die Entdeckung seltener Arten von Explosionen eröffnen immer tiefere Einblicke in die komplexen Phänomene beim Sternentod.
Hans‐Thomas Janka
wiley +1 more source
Constraining neutrino-DM interactions with Milky Way dwarf spheroidals and supernova neutrinos [PDF]
Physical Review DWe constrain the neutrino-dark matter cross section using properties of the dark matter density profiles of Milky Way dwarf spheroidal galaxies. The constraint arises from core-collapse supernova neutrinos scattering on dark matter as a form of energy ...
S. Heston, S. Horiuchi, Satoshi Shirai
semanticscholar +1 more source
Supernovae and neutrinos [PDF]
Nuclear Physics B - Proceedings Supplements, 2003 Invited talk at the XXth International Conference on Neutrino Physics and Astrophysics (Neutrino 2002), Munich, Germany, May 25-30 ...
openaire +2 more sources
Die Geheimnisse hochdichter Materie
Physik in unserer Zeit, Volume 54, Issue 5, Page 238-245, September 2023., 2023 Neutronensterne gehören neben Schwarzen Löchern zu den extremsten Objekten des Universums. Wenn sie mit rund 20 % der Lichtgeschwindigkeit miteinander kollidieren, wird ein Teil ihrer Materie mit hoher Geschwindigkeit ausgestoßen. Dies und die Analyse von Gravitationswellen erlauben tiefe Einblicke in die Eigenschaften extrem dichter Materie in ihrem ...
Andreas Bauswein
wiley +1 more source
Topics in Core-Collapse Supernova Theory: The Formation of Black Holes and the Transport of Neutrinos [PDF]
, 2012 Core-Collapse Supernovae are one of the most complex astrophysical systems in the universe. They deeply entwine aspects of physics and astrophysics that are rarely side by side in nature.
O'Connor, Evan Patrick
core +1 more source
Boosted dark matter driven by cosmic rays and diffuse supernova neutrinos [PDF]
Physical Review DDirect detection of light dark matter can be significantly enhanced by upscattering of dark matter with energetic particles in the cosmic ambient. This boosted dark matter flux can reach kinetic energies up to tens of MeV, while the typical kinetic ...
Dilip Kumar Ghosh +4 more
semanticscholar +1 more source
Simple method of diagnosing fast flavor conversions of supernova neutrinos [PDF]
Physical Review D, 2018 Neutrinos emitted from a supernova may undergo flavor conversions almost immediately above the core, with possible consequences for supernova dynamics and nucleosynthesis.
B. Dasgupta, A. Mirizzi, M. Sen
semanticscholar +1 more source
Space Weather, Volume 21, Issue 7, July 2023., 2023 Abstract The National Oceanic and Atmospheric Administration's Space Weather Prediction Center (NOAA/SWPC) issues several solar radiation storm products: the long standing proton Warnings and Alerts that are based on particle intensity levels observed by the Geostationary Operational Environmental Satellites; and the more recent International Civil ...
H. M. Bain +3 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 128, Issue 2, February 2023., 2023 Abstract We present long‐term density trends of the Earth's upper atmosphere at altitudes between 71 and 116 km, based on atmospheric occultations of the Crab Nebula observed with X‐ray astronomy satellites, ASCA, RXTE, Suzaku, NuSTAR, and Hitomi. The combination of the five satellites provides a time period of 28 years from 1994 to 2022.
Satoru Katsuda +11 more
wiley +1 more source
Neutrino treatment in multidimensional astrophysical simulations : a new spectral scheme [PDF]
, 2014 Neutrinos play a central role in modern physics and astrophysics. Their extremely weak interaction rate with baryons and other leptons makes their detection on the Earth difficult and challenging.
Perego, Albino
core +1 more source