3 ms·
I dont understand, what significance does this star has? Why was it upvoded to front page? What was the original title? Now it only says "Przybylski's Star"
by urza 10y ago
I dont understand, what significance does this star has? Why was it upvoded to front page? What was the original title? Now it only says "Przybylski's Star"
- eddieh 10y agoIt is rapidly oscillating photometricly: https://en.m.wikipedia.org/wiki/Rapidly_oscillating_Ap_star https://en.m.wikipedia.org/wiki/Rapidly_oscillating_Ap_star And also chemically peculiar.
- ojiikun 10y agooriginal title was "a star that has plutonium in its spectra"
- parenthephobia 10y agoThe reason it's interesting is that the star appears to contain a variety of short-lived isotopes, not just of plutonium: e.g. promethium-145, with a half-life of just under 18 years. Some as-yet unidentified process is replenishing the star's isotopes. An idea I've seen[1] is that the radiation from its neutron star sibling, invisible to us, is powerful enough to trigger nuclear reactions in the star's ionosphere. 1. "A hypothesis for explaining the origin of Przybylski’s star (HD 101065)" http://link.springer.com/article/10.1007/s11963-008-1005-7 http://link.springer.com/article/10.1007/s11963-008-1005-7