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tazmandevil3
2004-Jul-23, 06:05 PM
I have recently heard about these, and all I know about them is that they are "super supernovae", hence the name, "hypernovae". I am not sure if they actually exist in our galaxy, or in any galaxy at all, though. Does anyone know of any reliable (as in, non woo-woo) sources which delve into the characteristics and causes of these supposed phenomena?

DoktorGreg
2004-Jul-23, 06:13 PM
I found this Space.com article on it.

http://www.space.com/scienceastronomy/astronomy/milan_eta_carinae_000307.html

Looks like its time for a new disaster movie!

tazmandevil3
2004-Jul-23, 06:34 PM
"Looks like its time for a new disaster movie!"

The explosion of a hypernova could be the doomsday bringer for the sequel to The Day After Tomorrow, entitled The Day After The Day After Yesterday's Tomorrow! #-o

DoktorGreg
2004-Jul-23, 06:52 PM
"Looks like its time for a new disaster movie!"

The explosion of a hypernova could be the doomsday bringer for the sequel to The Day After Tomorrow, entitled The Day After The Day After Yesterday's Tomorrow! #-o

My only complaint with that movie was the lack of an attempt to blow it up with a nuke.

On edit, I gotta apologize to original poster. I did not mean to make fun of your post, it is a legitimate question, just the Space.com article made me think "movie!" right away.

tazmandevil3
2004-Jul-23, 06:58 PM
"On edit, I gotta apologize to original poster. I did not mean to make fun of your post, it is a legitimate question, just the Space.com article made me think "movie!" right away."

The notion that you could have been insulting my question never once crossed the dark recesses of my mind.

DoktorGreg
2004-Jul-23, 07:04 PM
"On edit, I gotta apologize to original poster. I did not mean to make fun of your post, it is a legitimate question, just the Space.com article made me think "movie!" right away."

The notion that you could have been insulting my question never once crossed the dark recesses of my mind.

Sorry again! Compensating for the "internet does not convey Sarcasm" thing. As I am a refugee here from political chat, which i can't take anymore, I have encounted lots of people who are overly sensitive to humor.

P.S. Apologies to those who think "overly sensitive" is a pejorative

tazmandevil3
2004-Jul-23, 09:18 PM
I was not being sarcastic, don't worry man! :)

Lycus
2004-Jul-23, 09:25 PM
Sorry again! Compensating for the "internet does not convey Sarcasm" thing. As I am a refugee here from political chat, which i can't take anymore, I have encounted lots of people who are overly sensitive to humor.

P.S. Apologies to those who think "overly sensitive" is a pejorative
That's no problem. All you have to do is master the art of smilies :P :wink: 8) and you shouldn't have any problems when being sarcastic.

beskeptical
2004-Jul-24, 02:54 AM
Dr G, we love sarcastic humor on this boardhttp://www.planetsmilies.com/smilies/character/4/character28.gif, and almost everyone is nice to almost everyone so most folk's first thoughts are not that they are being made fun of.

I thought your comment fit right in.http://www.planetsmilies.com/smilies/sign/1/sign16.gif

beskeptical
2004-Jul-24, 02:59 AM
Hypernova explained, (http://imagine.gsfc.nasa.gov/docs/features/news/20may99.html) in addition to DrG's link. And, APOD (http://antwrp.gsfc.nasa.gov/apod/ap990420.html)has the same image as the explanation link.

DoktorGreg
2004-Jul-24, 04:14 AM
:D :) :( :o
:-? 8) :lol: :x
:P :oops: :cry: :evil:
:roll: :wink: =D> #-o
:^o [-X 8-[ [-(

Mastered!

beskeptical
2004-Jul-24, 04:24 AM
:D :) :( :o
:-? 8) :lol: :x
:P :oops: :cry: :evil:
:roll: :wink: =D> #-o
:^o [-X 8-[ [-(

Mastered!Then you may be ready for the Big Leagues (http://planetsmilies.com/)http://www.planetsmilies.com/smilies/cool/1/cool10.gif

DoktorGreg
2004-Jul-24, 06:51 AM
http://www.planetsmilies.com/smilies/jumping/jumping05.gif


Hmmm seem to have it.

dvb
2004-Jul-24, 10:28 PM
Wow, that site is so cool! http://www.planetsmilies.com/smilies/fighting/1/fighting61.gif

beskeptical
2004-Jul-25, 03:24 AM
I just hope it doesn't waste bandwidth http://www.planetsmilies.com/smilies/character/2/character21.gifbut I prefer to be more expressive than pure verbal expression allows.http://www.planetsmilies.com/smilies/happy/3/happy04.gif

Jerry
2004-Jul-26, 05:41 PM
Hypernova explained, (http://imagine.gsfc.nasa.gov/docs/features/news/20may99.html) in addition to DrG's link. And, APOD (http://antwrp.gsfc.nasa.gov/apod/ap990420.html)has the same image as the explanation link.
I think http://arxiv.org/abs/astro-ph/0311484 Middleditch is offering a better explanation: A collision and explosion involving two pairs of white dwarfs or nearly white dwarf stars. This creates the geometry needed to shoot a beamed "gamma ray from hell".