<p>I know that SN 1604 is a Type Ia supernova. But was it formed from two white dwarfs colliding in a double degenerate scenario, or in a single white dwarf accreting matter? I have seen supporters of both theories.</p>

CC BY-SA 4.0
2024-10-18T19:20:41.027Z
can you show and link where you have seen support for either hypothesis?
planetmaker
CC BY-SA 4.0
2024-10-18T23:45:21.873Z
Note that double-degenerate also results from a white-dwarf accreting matter-- it's just accreting from a white-dwarf companion.  It's unlikely to be an actual collision.
antlersoft
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2024-10-19T19:23:34.620Z
As posed, this question would appear to be seeking an opinion.
ProfRob
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2024-10-25T13:04:58.137Z
There is no consensus on this issue for any of the Type Ia supernovae.
eshaya
<supernova><white-dwarf><type-ia-supernova>
Is Kepler's Supernova a double degenerate or single degenerate supernova?
Astrovis
# Is Kepler's Supernova a double degenerate or single degenerate supernova?

(Asked by: username_0 on 2024-10-18)

I know that SN 1604 is a Type Ia supernova. But was it formed from two white dwarfs colliding in a double degenerate scenario, or in a single white dwarf accreting matter? I have seen supporters of both theories.

**Tags:** supernova, white-dwarf, type-ia-supernova

> **Comments:**
> **username_1**: can you show and link where you have seen support for either hypothesis?  
> **username_2**: Note that double-degenerate also results from a white-dwarf accreting matter-- it's just accreting from a white-dwarf companion.  It's unlikely to be an actual collision.  
> **username_3**: As posed, this question would appear to be seeking an opinion.  
> **username_4**: There is no consensus on this issue for any of the Type Ia supernovae.  

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## 0 answers

