have used an advanced software tool to analyze the signatures of this kilonova explosion, adding in data from radio and X-ray observations of other neutron stars, nuclear physics calculations and findings from collision experiments conducted in particle ...
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Millions of years from now, the team predicts that the two neutron stars will spiral slowly toward each other in a cosmic dance, ultimately colliding in a kilonova explosion. Such explosions are known to be a source of immense quantities of heavy elements like platinum, xenon, uranium and gold...
For more information on this research see: Mysterious Kilonova Explosion Afterglow Potentially Spotted for First Time Radioactive Kilonova Glow Suggests Rapid Spin Delayed Collapse of Neutron Stars Into Black Hole Reference: “The emergence of a new source of X-rays from the binary neutron star merge...
This allowed them to combinevery long baseline interferometry(VLBI) radio measurements with the afterglow's light curve and measurements of its relative motion since it was first detected. The combined data allowed them to pinpoint the explosion site, and debris created from the explosion was drawn...
M. et al. Rapidly decaying supernova 2010X: a candidate “.Ia” explosion. Astrophys. J. 723, L98–L102 (2010). Article ADS Google Scholar Zhong, S.-Q., Li, L. & Dai, Z.-G. GRB 211211A: a neutron star-white dwarf merger? Astrophys. J. 947, L21 (2023). Article ADS ...
2004). This could occur during the early supernova explosion phase (Winteler et al. 2012; Nishimura et al. 2015) as well as during the subsequent cooling phase of the proto-NS over several seconds (Thompson 2003; Metzger et al. 2007; Vlasov et al. 2014). Despite the promise of such ...
The neutrino-driven wind following a SN explosion accelerates matter from the proto-NS surface relatively gradually, in which case neutrino absorption reactions on nucleons have time to appreciably raise the electron fraction of the wind from its initial low value near the NS surface. By contrast,...
Thus, this mid-range stellar explosion was dubbed a 'kilonova'. However, when the name was coined in 2010, astronomers had yet to see one. It was in August 2017 that the first kilonova was spotted. In one moment, the light, high-energy particles,...
(2) the dilution effect from electron scattering opacity is likely negligible, (3) the explosion times are exactly known due to the GW detection, and (4) the ejecta geometry is, at least in some cases, highly spherical and can be constrained from line-shape analysis. We provide an ...