3 ms·
Consider the magnetar. https://en.wikipedia.org/wiki/Magnetar https://en.wikipedia.org/wiki/Magnetar "A magnetar's 10^10 tesla field, by contrast, has an ener
by srean 2mo ago
Consider the magnetar.
https://en.wikipedia.org/wiki/Magnetar https://en.wikipedia.org/wiki/Magnetar
"A magnetar's 10^10 tesla field, by contrast, has an energy density of 4.0×1025 J/m3, with an E/c2 mass density more than 10,000 times that of lead."
- 1970-01-01 2mo agoYes, magnetars are considerably more rare than black holes and considerably more interesting to study in terms of raw horsepower. Imagine a type-2 civilization using them as engines or launchers for spacecraft to zip around the galaxy.
- ck2 2mo agothe radiation from a magnetar exceeds any other star, overcoming that would seem implausible still trying to wrap my mind around kilonovas (colliding neutron stars) ie. they can pop out earth-sized chunks of gold, in theory, and since they aren't black holes that would be VISIBLE, albeit also "in theory" lol * https://www.nasa.gov/image-article/unfolding-story-of-kilonova-told-x-rays/ https://www.nasa.gov/image-article/unfolding-story-of-kilono... maybe Roman can spot one someday, that would be something
- pfdietz 2mo ago> they can pop out earth-sized chunks of gold The can produce Earth masses of gold, but of course not in the form of "chunks". The gold starts as atoms in a highly ionized gas and only much later cools enough to form solids (dust).