What are the various types of cosmic explosions?

  • Context: High School 
  • Thread starter Thread starter Sundown444
  • Start date Start date
  • Tags Tags
    Explosions
Click For Summary

Discussion Overview

The discussion revolves around the various types of cosmic explosions, including supernovae and gamma ray bursts, as well as other phenomena that may be classified as explosions in space. Participants explore different types of cosmic events, their characteristics, and the nature of the term "explosion" in this context.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants mention supernovae and gamma ray bursts as known types of cosmic explosions, while also suggesting other events like novae, coronal mass ejections, solar flares, planetary collisions, and pulsars.
  • There is a discussion about the power of these explosions, with one participant suggesting that some stars undergo a slow explosion during their red giant phase, ejecting significant mass before becoming white dwarfs.
  • One participant questions whether gamma ray bursts should be classified as explosions, noting that they are focused energy from black holes and that some types do not accompany traditional explosive events.
  • Another participant expresses uncertainty about the classification of gamma ray bursts and mentions X-ray flashes, indicating doubts about whether they qualify as explosions.
  • It is noted that the term "burst" in gamma ray bursts refers to a spike of electromagnetic radiation rather than an explosive disintegration, with merging neutron stars or black holes suggested as potential causes.

Areas of Agreement / Disagreement

Participants exhibit a mix of agreement on the existence of various cosmic explosions but also express significant disagreement and uncertainty regarding the classification and nature of specific events like gamma ray bursts and quasars.

Contextual Notes

Some claims about the nature of gamma ray bursts and their classification as explosions remain unresolved, with participants offering differing interpretations and definitions of what constitutes an explosion in this context.

Sundown444
Messages
179
Reaction score
7
I have a question about cosmic explosions. Now, I know at least two kinds of explosions that can happen in space; supernovae and gamma ray bursts. I was wondering, what are the names of other types of cosmic explosions other than those two? I'd like to know.
 
Astronomy news on Phys.org
'Exposions' is a pretty broad term. There is virtually no limit on the kinds of things that can 'splode in space.

Novae (everyone forgets the supernova's more mild-mannered little brother), coronal mass ejections, solar flares, planetary collisions, pulsars, etc.
 
DaveC426913 said:
'Exposions' is a pretty broad term. There is virtually no limit on the kinds of things that can 'splode in space.

Novae (everyone forgets the supernova's more mild-mannered little brother), coronal mass ejections, solar flares, planetary collisions, pulsars, etc.

I see. How powerful are they?
 
Why don't you do some Googling around, maybe check out Wiki, and if you have specific questions, ask them here.
 
DaveC426913 said:
Why don't you do some Googling around, maybe check out Wiki, and if you have specific questions, ask them here.

Okay, will do.
 
Some stars at the end their lives undergo a kind of slow gentle explosion, but it is still nevertheless a process which involves the star 'blowing up' and ejecting a considerable part of it's mass. Sometimes they can do this repeatedly.
These are red giant stars and they are the final act of stars which are similar in mass to our Sun, (it's in the medium to small size range for most of it's life and yellowish).
Eventually only a small very dense hot core remains as a white dwarf star, and the outermost layers are lost.
The white dwarf remnant is 'dead', no longer generating any new energy, it's just retaining (most of) what it already has and very slowly cools.
When our Sun enters the red giant phase (in about 5bn years) it will certainly consume Mercury and very likely Venus too, the Earth may escape from being engulfed then it might not, but if it does escape being actually destroyed it will certainly be no longer habitable having lost all of it's oceans and most of it's atmosphere.
 
Last edited:
I would wonder if you could even consider a gamma ray burst to be an explosion in the same sense as a supernova. It's just heavily focused energy created by a black hole, and there are multiple types of gamma ray bursts, some don't really even accompany any sort of explosion, some help catalyst a hypernova.

Would a quasar be considered an explosion? They pump out far more energy than a supernova.
 
  • Like
Likes   Reactions: davenn
newjerseyrunner said:
I would wonder if you could even consider a gamma ray burst to be an explosion in the same sense as a supernova. It's just heavily focused energy created by a black hole, and there are multiple types of gamma ray bursts, some don't really even accompany any sort of explosion, some help catalyst a hypernova.

Would a quasar be considered an explosion? They pump out far more energy than a supernova.

Funny you should say that. Gamma ray bursts do have the word "burst" in them, but I have wondered myself if they were an actual explosion, despite what I may have said in the initial post. I looked it up on Google and some sites did say it was an explosion. I still don't know what to think.

I also read something about X-Ray flashes being an explosion as well, but I have my very strong doubts.
 
Last edited:
It remains uncertain what is the cause of gamma ray bursts, but the term 'burst' here is referring to a sudden dramatic but short spike of EM radiation, not necessarly implying that something has disintegrated explosively.
In fact one of the primary suspects for their origin is that of very massive objects such as neutron stars or black holes merging.
 

Similar threads

  • · Replies 12 ·
Replies
12
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 0 ·
Replies
0
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 9 ·
Replies
9
Views
1K
  • · Replies 0 ·
Replies
0
Views
1K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 24 ·
Replies
24
Views
3K
  • · Replies 24 ·
Replies
24
Views
4K