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Feb 27, 2016 at 14:52 comment added HDE 226868 Type Ia supernovae require a white dwarf and a binary system. They are not core collapse supernovae.
Feb 18, 2016 at 15:20 comment added Sobrique Yes. It's kinda vague, and ... well, somewhat offends my engineeering sensibilities - the equations predicting the 'hidden' mass is surprisingly consistent, which gives a reasonable basis to think it must be there. Maybe the gravity wave detectors give us some potential for 'finding' it.
Feb 18, 2016 at 15:08 comment added Jake @Sobrique Based on something I read on the physics se, apparently dark matter is a catch all term for gravity without observed mass. That's where I read the Neptune example.
Feb 18, 2016 at 15:06 history edited Jake CC BY-SA 3.0
edited body
Feb 18, 2016 at 15:06 comment added Jake @Yakk Good catch. Edited.
Feb 17, 2016 at 22:53 comment added Yakk 1a supernova only require ~1.4 solar masses total.
Feb 17, 2016 at 18:57 comment added thanby Good point about the reference frames
Feb 17, 2016 at 11:52 comment added Sobrique Dark matter is weird stuff because no one really knows if it exists or what it is. It's just all the equations 'work' if you apply a particular fudge factor, that is consistent with a particular quantity of 'missing' mass. So as a Sci-fi 'thing' dark matter could be practically anything, and thus really well suited for 'putting out' stars.
Feb 17, 2016 at 4:17 history answered Jake CC BY-SA 3.0