Betelguese getting some attention for dimming
Discussion
Scabutz said:
annodomini2 said:
Scabutz said:
dukeboy749r said:
It might still go super nova within all of our lifetimes, on the premise it might already have done so 600 odd years ago.
It’s fascinating that we are watching light from around the 1400s (in Earth time).
The vastness of space is too big to comprehend. The size of Betelguese its self is mad in comparison to your solar system. It’s fascinating that we are watching light from around the 1400s (in Earth time).
t, I've outed myself. Take me to your leader at once.Typo obvs
Bugger - goes to log back onto SETI....
at the sudden change of conversation.
Eric Mc said:
Any particular object that is causing alarm?
Betelgeuse?
If so, what are they seeing that’s causing alarm?
They are seeing an increase in neutrinos of an energy level associated with pre-nova eventsBetelgeuse?
If so, what are they seeing that’s causing alarm?
Unfortunately the detectors are not directional, so they can't nail it down to a particular object
808 Estate said:
What is the guess on time scale between pre nova and the main event?
This paper says that the SK machine can spot neutrinos created in the final silicon-fusing stage of a star before supernova, and that that phase lasts only a few days. Neutrinos travel very slightly slower than light, so over the 640 light years from Betelgeuse, the warning time is cut from a few days to around 7 hours. The paper is reasonably accessible, and has a good description of the steps leading up to supernova.
Gassing Station | Science! | Top of Page | What's New | My Stuff