Results 121 to 130 of about 62,844 (248)

A Simple Bipolar Jet Model for the Polarization of Core-Collapse Supernovae [PDF]

open access: yesarXiv, 2004
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

open access: yesChemistry – A European Journal, Volume 31, Issue 28, May 19, 2025.
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

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

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 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   +2 more sources

Supernova 1604, Kepler’s Supernova, and Its Remnant [PDF]

open access: yes, 2016
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]

open access: yesThe Astrophysical Journal, 2005
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

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

Home - About - Disclaimer - Privacy