Results 111 to 120 of about 130,560 (227)

Quark nova imprint in the extreme supernova explosion SN 2006gy

open access: yes
The extremely luminous supernova 2006gy (SN 2006gy) is among the most energetic ever observed. The peak brightness was 100 times that of a typical supernova and it spent an unheard of 250 days at magnitude -19 or brighter.
Agnoletto   +36 more
core   +2 more sources

The Search for Supernova-produced Radionuclides in Terrestrial Deep-sea Archives

open access: yes
An enhanced concentration of 60Fe was found in a deep ocean's crust in 2004 in a layer corresponding to an age of ~2 Myr. The confirmation of this signal in terrestrial archives as supernova-induced and detection of other supernova-produced radionuclides
A. Wallner   +37 more
core   +2 more sources

Shocks and Particle Acceleration in Supernova Remnants: Observational Features

open access: yes
The last ten years a number of observational advances have substantially increased our knowledge of shock phenomena in supernova remnants. This progress has mainly been made possible by the recent improvements in X-ray and Gamma-ray instrumentation.
Aharonian   +63 more
core   +2 more sources

Interacting supernovae and supernova impostors: Evidence of incoming supernova explosions? [PDF]

open access: yesAIP Conference Proceedings, 2015
Violent eruptions, and consequently major mass loss, are a common feature of the so–called Luminous Blue Variable (LBV) stars. During major eruptive episodes LBVs mimic the behavior of real type IIn supernovae (SNe), showing comparable radiated energy and similar spectroscopic properties.
openaire   +1 more source

Detection of a close supernova gravitational wave burst in a network of interferometers, neutrino and optical detectors

open access: yes
Trying to detect the gravitational wave (GW) signal emitted by a type II supernova is a main challenge for the GW community. Indeed, the corresponding waveform is not accurately modeled as the supernova physics is very complex; in addition, all the ...
Anderson   +57 more
core   +2 more sources

Reducing Zero-point Systematics in Dark Energy Supernova Experiments [PDF]

open access: yes
We study the effect of filter zero-point uncertainties on future supernova dark energy missions. Fitting for calibration parameters using simultaneous analysis of all Type Ia supernova standard candles achieves a significant improvement over more ...
A. Bonissent   +41 more
core   +1 more source

Understanding Supernova Neutrino Physics using Low-Energy Beta-Beams

open access: yes
We show that fitting linear combinations of low-energy beta-beam spectra to supernova-neutrino energy-distributions reconstructs the response of a nuclear target to a supernova flux in a very accurate way. This allows one to make direct predictions about
Jachowicz, N., McLaughlin, G. C.
core   +2 more sources

Radioactive Probes of the Supernova-Contaminated Solar Nebula: Evidence that the Sun was Born in a Cluster [PDF]

open access: yes
We construct a simple model for radioisotopic enrichment of the protosolar nebula by injection from a nearby supernova, based on the inverse square law for ejecta dispersion.
Brian D. Fields   +11 more
core   +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

Supernova remnant S147 and its associated neutron star(s)

open access: yes
The supernova remnant S147 harbors the pulsar PSR J0538+2817 whose characteristic age is more than an order of magnitude greater than the kinematic age of the system (inferred from the angular offset of the pulsar from the geometric center of the ...
Anderson   +48 more
core   +2 more sources

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