448 citations · 2.8k across the 32 of their papers we have counts for
Showing 2014 · astro-ph.EPShow all
2 papers · 2 filters
astro-ph.EP2014★ 11 cited
Has the Earth been exposed to numerous supernovae within the last 300 kyr?
A. L. Melott, I. G. Usoskin, G. A Kovaltsov +1
Firestone (2014) asserted evidence for numerous (23) nearby (d<300 pc) supernovae within the Middle and Late Pleistocene. If true, this would have strong implications for the irrad…
astro-ph.EP2014★ 17 cited
A comet could not produce the carbon-14 spike in the 8th century
Ilya Usoskin, Gennady Kovaltsov
A mysterious increase of radiocarbon 14C ca. 775 AD in the Earth's atmosphere has been recently found by Miyake et al. (Nature, 486, 240, 2012). A possible source of this event has…