Recent work seems to refute this. A "killer SN" needs to be within a few tens of light years. Search for "supernova danger Brian fields" (He has worked on this subject.)
@JeremysRants Yes! seems like a supernova radiation threat in near future (I mean millions of years :)) better to start to build a magnetic shield for the planet against the burst of high-energetic radiation.
@rottencranberry and find the page "APOD: 2011 April 30 - Tycho's Supernova Remnant" and look for the link on text "What exploding white dwarf star" there is the page of Chandra's good explanation about that sample supernova too
@05swanbe good question. that first flash must represent a different burning or fusion process of elements from the collapsed gas and then when this runs off, it contracts and the core gets hotter for the actual fusion process for the explosion. First trigger for carbon element and then gets hotter for burning (fusing) the oxygen and goes on for heavier elements. These are what told in the "Type Ia supernova" entry in wikipedia, and I guess this seconds in the animation represent that steps.
Recent work seems to refute this. A "killer SN" needs to be within a few tens of light years. Search for "supernova danger Brian fields" (He has worked on this subject.)
SuperGorpus 3 months ago
PTF11kly Super Nova IA in m101
thiagokeizo 5 months ago
@thiagokeizo exactly! :)
yoonoose 5 months ago
IK Pegasi is only 150 LY from us and this will most likely happen when the primary star goes red giant. We need to be 3000 ly or farther to be safe
JeremysRants 7 months ago
@JeremysRants Yes! seems like a supernova radiation threat in near future (I mean millions of years :)) better to start to build a magnetic shield for the planet against the burst of high-energetic radiation.
yoonoose 6 months ago
What happened to the other star? Could it survive?
rottencranberry 9 months ago
@rottencranberry google for "SN 1572" you'll find much information taken from a real sample :)
yoonoose 9 months ago
@rottencranberry and find the page "APOD: 2011 April 30 - Tycho's Supernova Remnant" and look for the link on text "What exploding white dwarf star" there is the page of Chandra's good explanation about that sample supernova too
yoonoose 9 months ago
@yoonoose Thank you, i't makes much more sense now. There is a whole universe out there you know...
Best regards.
rottencranberry 9 months ago
@rottencranberry :) my pleasure.
best wishes
yoonoose 9 months ago
@rottencranberry yes the other star survive only lost the serupefial area
thiagokeizo 5 months ago
Which caused which?
vap0rxt 1 year ago
@vap0rxt this is an example to the evolution of binary stars
yoonoose 1 year ago
@yoonoose I was wondering, as the white dwarf is exploding, it brightens, dims and THEN explodes. Why is there that dip in brightness?
05swanbe 6 months ago
@05swanbe good question. that first flash must represent a different burning or fusion process of elements from the collapsed gas and then when this runs off, it contracts and the core gets hotter for the actual fusion process for the explosion. First trigger for carbon element and then gets hotter for burning (fusing) the oxygen and goes on for heavier elements. These are what told in the "Type Ia supernova" entry in wikipedia, and I guess this seconds in the animation represent that steps.
yoonoose 6 months ago