Will the Sun end as a Type 1a supernova?

Click For Summary

Discussion Overview

The discussion centers on the fate of the Sun and whether it could end as a Type Ia supernova, with participants examining a specific figure from Wikipedia that suggests otherwise. The scope includes theoretical astrophysics and stellar evolution.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants assert that the Sun will become a white dwarf and eventually cool to a black dwarf, rather than going supernova.
  • Others argue that the figure in question does not support the claim that the Sun will go supernova, emphasizing that it refers to sun-like stars, not the Sun itself.
  • One participant highlights the need for careful interpretation of general images and suggests that the graphic is misleading.
  • Another participant points out that a Type Ia supernova requires a binary star system, indicating that the Sun alone cannot produce such an event without a companion star.
  • There is a suggestion that the graphic's dashed line between the white dwarf and Type Ia supernova could imply uncertainty or a conditional relationship.

Areas of Agreement / Disagreement

Participants generally disagree on the interpretation of the graphic and the implications for the Sun's fate. There is no consensus on whether the figure accurately represents the Sun's evolutionary path.

Contextual Notes

Some participants note that the source material is sub-standard and that the graphic does not clearly indicate stellar evolution, leading to confusion.

swampwiz
Messages
567
Reaction score
83
Astronomy news on Phys.org
swampwiz said:
but this figure at Wikipedia says it will go supernova.

It most certainly does not.
 
First of all, extrapolating conclusions from a general image is never a good idea.
(Btw even the image is not telling you what you think it's telling you: it says a sun-like star not Sun)

Second, it literally took me less than 1 min to find these two links:
https://en.wikipedia.org/wiki/Sun#After_core_hydrogen_exhaustion
https://en.wikipedia.org/wiki/Type_Ia_supernova

Isn't it a better practice to take a few minutes to research something, than to quickly open a thread and then spend a couple of hours waiting for a response?
 
  • Like
Likes   Reactions: BillTre, phinds, jim mcnamara and 1 other person
Motore said:
First of all, extrapolating conclusions from a general image is never a good idea.
(Btw even the image is not telling you what you think it's telling you: it says a sun-like star not Sun)

Second, it literally took me less than 1 min to find these two links:
https://en.wikipedia.org/wiki/Sun#After_core_hydrogen_exhaustion
https://en.wikipedia.org/wiki/Type_Ia_supernova

Isn't it a better practice to take a few minutes to research something, than to quickly open a thread and then spend a couple of hours waiting for a response?
I had read before that the Sun will not go supernova, but only asked the question because this figure says otherwise (which is what I had mentioned in the original posting). Are you trying to say that the figure is incorrect? Or perhaps the Sun is very close to being large enough to go supernova, but will barely not, etc.? Perhaps the Sun has a very non-normal composition of metals so that it will not go supernova, but that typical stars of the Sun's size do go supernova? I would hope that the confusion is appreciated here.
 
swampwiz said:
I had read before that the Sun will not go supernova, but only asked the question because this figure says otherwise (which is what I had mentioned in the original posting). Are you trying to say that the figure is incorrect?
They are saying you are misinterpreting the figure. In fairness, it's not a great graphic.
 
  • Like
Likes   Reactions: Motore
swampwiz said:
I had read before that the Sun will not go supernova, but only asked the question because this figure says otherwise (which is what I had mentioned in the original posting). Are you trying to say that the figure is incorrect? Or perhaps the Sun is very close to being large enough to go supernova, but will barely not, etc.? Perhaps the Sun has a very non-normal composition of metals so that it will not go supernova, but that typical stars of the Sun's size do go supernova? I would hope that the confusion is appreciated here.
For a Type 1A supernova, you need to have at least a binary star system. The white dwarf accretes matter from the other star until it builds up enough mass to trigger the supernova.
So for a Sun like star to ever produce a type 1A supernova, it has to have a companion star.
 
  • Like
Likes   Reactions: swampwiz and Bandersnatch
The picture is utterly confusing. It does not indicate evolution, just lists cases.
 
swampwiz said:
I had read before that the Sun will not go supernova, but only asked the question because this figure says otherwise

No, it doesn't. It really doesn't. This is your interpretation, not anything in the picture - which is illustrating another point entirely.
 
russ_watters said:
They are saying you are misinterpreting the figure. In fairness, it's not a great graphic.
mathman said:
The picture is utterly confusing. It does not indicate evolution, just lists cases.
Since the source material for this thread is very sub-standard (not the OP's fault), this thread is closed.
@swampwiz -- Please use the links posted by @Motore to answer your question. Thanks.
Motore said:
 
  • #10
I know this is locked, but to be more specific; the graphic appears to have a dashed line between the White Dwarf and 1a supernova, like this: ////// That, to me, says "maybe".
 
  • Like
Likes   Reactions: swampwiz, Motore and DaveC426913

Similar threads

  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 0 ·
Replies
0
Views
2K
  • · Replies 20 ·
Replies
20
Views
5K
Replies
17
Views
4K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 49 ·
2
Replies
49
Views
5K
  • · Replies 20 ·
Replies
20
Views
3K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K