Results 121 to 130 of about 62,844 (248)
A Simple Bipolar Jet Model for the Polarization of Core-Collapse Supernovae [PDF]
We propose a bipolar jet model for supernova polarization. Light from the main component of the supernova (which we call the bulk supernova for short) scatters off electrons in the jets and is polarized: this polarized light is added to the direct emission from the bulk supernova and causes the overall supernova emission to be polarized. The motivation
arxiv
Photoinduced Hydrogen Evolution Catalyzed by Co(II) Complexes of N5‐Donor Ligands
Cobalt(II) complexes of three related pentadentate ligands have been investigated as photoelectrochemical catalysts for proton reduction/hydrogen gas evolution in the presence of ruthenium, iridium, or copper‐based photosensitizers. Potential mechanisms for hydrogen evolution have been investigated by time‐resolved transient absorption spectroscopy and
Chuanshuai Li+14 more
wiley +1 more source
Supernova Burst and Diffuse Supernova Neutrino Background Simulator for Water Cherenkov Detectors
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
Charged-Current Neutrino-Nucleus Scattering off the Even Molybdenum Isotopes
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 theory and supernova 1987A
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 +2 more sources
Supernova 1604, Kepler’s Supernova, and Its Remnant [PDF]
Supernova 1604 is the last Galactic supernova for which historical records exist. Johannes Kepler's name is attached to it, as he published a detailed account of the observations made by himself and European colleagues. Supernova 1604 was very likely a Type Ia supernova, which exploded 350 pc to 750 pc above the Galactic plane.
openaire +6 more sources
Young Core‐Collapse Supernova Remnants and Their Supernovae [PDF]
43 pages, ApJ, revised, discussion of 3C58 changed, in press for Feb.
openaire +4 more sources
Performance of SK-Gd’s Upgraded Real-time Supernova Monitoring System
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