Results 161 to 170 of about 197,763 (248)

Acceleration and Transport of the Unstable Cosmic-Ray Isotope 60Fe in Supernova-enriched Environments

open access: yesThe Astrophysical Journal
The unstable isotope ^60 Fe, with a half-life of 2.6 million years, is produced primarily in supernova explosions. The observed presence of ^60 Fe in cosmic rays and its detection in deep-sea crusts and sediments suggest two possible scenarios: either ...
Xin-Yue Shi   +2 more
doaj   +1 more source

An X-ray and Radio Study of the Varying Expansion Velocities in Tycho's Supernova Remnant. [PDF]

open access: yesAstrophys J Lett, 2016
Williams BJ   +7 more
europepmc   +1 more source

New Radio Observations of the Supernova Remnant CTA 1

open access: yesThe Astrophysical Journal
We present new radio images of the supernova remnant (SNR) CTA 1 at 1420 and 408 MHz, and in the 21 cm line of H i observed with the Dominion Radio Astrophysical Observatory Synthesis Telescope and at 1420 MHz observed with the Effelsberg 100 m telescope.
Tam Do   +5 more
doaj   +1 more source

A nearby long gamma-ray burst from a merger of compact objects. [PDF]

open access: yesNature, 2022
Troja E   +23 more
europepmc   +1 more source

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