typically defined as having birth masses larger than\(M_{\mathrm{ini}} \gtrsim 8\)M⊙, end their lives as a violent supernova explosion before forming a neutron star or black hole. Hence massive stars are an important
There was a fatal explosion that has rocked Central New York State and has people shook up in nearby neighborhoods.
at first the exploding star appeared to be a Type Ic supernova — defined as one where there’s no detectable hydrogen in the spectrum. This is usually because the outer layers of hydrogen and helium around the massive star have been shed before the explosion. ...
while the60Fe/26Al ratio provides a direct connection to the evolution of the massive star, stellar winds, and supernova explosion mechanisms. In fact, because the contributions of the two isotopes come from different parts of the star, a robust model that...
Evolution and explosion of the most massive asymptotic giant branch stardoi:10.1063/1.4874060nuclear reactionsstars: AGBstars: evolutionstars: interiorssupernovae: generalThe most massive asymptotic giant branch (AGB) stars can form a critical mass of ONe core at its center. The collapse of such a...
A detailed study of the absorption pattern in the X-ray spectrum of GRB060218 reveals evidence of material highly enriched in low atomic number metals ejected before the SN/GRB explosion. We find that, within the current scenarios of stellar evolution, only a progenitor star characterized by a ...
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Here we present a new event, SN2016aps, offset from the centre of a low-mass galaxy, that radiated ≳5 × 1051 erg, necessitating a hyper-energetic supernova explosion. We find a total (supernova ejecta + CSM) mass likely exceeding 50−100 M⊙, with energy ≳1052...
and the rest of the matter spirals down onto the neutron star. There, it accumulates as a layer on the surface. As more and more material rains down onto the neutron star, the gravitational field compresses it until a runaway nuclear explosion is initiated. This creates a cataclysmic even...
“That is pretty fast and at the extreme end of how fast we think a neutron star can be moving, even if it got a kick from the supernova explosion,” Banovetz said. “More recent investigations call into question whether the object is actually the surviving neutron star of ...