Timeline for What is the safe distance to a supernova explosion?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2017 at 12:39 | history | edited | CommunityBot |
replaced http://physics.stackexchange.com/ with https://physics.stackexchange.com/
|
|
| Oct 21, 2016 at 0:03 | history | bounty ended | CommunityBot | ||
| Oct 14, 2016 at 5:32 | comment | added | ohwilleke | It bears noting that Proxima Centuri, the closest star to the solar system, is about 1.3 parsecs away, and that the inert gas Argon is not ecologically very important to life on Earth. There are at least 56 star systems, however, within 5 parsecs, so the CO2 number is the one that matters. en.wikipedia.org/wiki/List_of_nearest_stars_and_brown_dwarfs A recent evaluation of the risk of a extinction causing gamma ray burst risk can be found at arxiv.org/abs/1609.09355 | |
| Mar 5, 2016 at 12:29 | comment | added | honeste_vivere | @DanielSank - Ah, I see what you mean. Yes, you are correct. | |
| Mar 4, 2016 at 16:08 | comment | added | DanielSank | No mistake. I'm saying tha tthe whole analysis where you include the various different atmospheric gasses is not needed. | |
| Mar 4, 2016 at 14:27 | comment | added | honeste_vivere | @DanielSank - Did I make a mistake at some place and use only nitrogen? I apologize, I am not sure I understand your clarification. | |
| Mar 3, 2016 at 23:24 | comment | added | DanielSank | Just want to point out that the errors you would incur by treating the atmosphere as entirely nitrogen are completely irrelevant when making order of magnitude estimates like this. | |
| Mar 1, 2016 at 15:12 | history | edited | honeste_vivere | CC BY-SA 3.0 |
Added some caveats and extra notes
|
| Feb 28, 2016 at 14:01 | comment | added | honeste_vivere | @mmesser314 - Oh I am sure there are several other things that would kill life on Earth with much less energy input than the extreme examples I listed here. This was meant as an upper limit extreme. The other issues would be better answered by an atmospheric chemist/physicist. | |
| Feb 28, 2016 at 13:35 | comment | added | mmesser314 | While this is a great answer, is removing the atmosphere the mechanism by which a supernova would kill? E.G. raising the temperature of the atmosphere by 50 C would likely do it. Or raising the temperature of the ground. These would take much less energy than baking away the atmosphere. There may be other mechanisms. | |
| Feb 2, 2016 at 3:25 | vote | accept | CommunityBot | moved from User.Id=46925 by developer User.Id=2911 | |
| Feb 1, 2016 at 20:58 | comment | added | user46925 | TY for this great answer | |
| Feb 1, 2016 at 17:18 | history | answered | honeste_vivere | CC BY-SA 3.0 |