Dark matter adds additional mass that causes small white dwarfs to supernova?

[PB666]

http://physicsworld.com/cws/article/news/2015/oct/07/dark-matter-may-power-supernovae

The problem I have with this is the following:

1. Distilled to its essense Dark matter is actually an unknown source of graviational acceleration.

2. Supposing these are wimps they accelerate from interstellar space approach and whiz backed into space without interaction, if each of these is following elliptical orbit they would spend most of thier time distal to the star

3. As the stars mass originally blows away some of the dark matter will follow the lost mass, there is no reason that new dark matter would approach.

So i don't think this is a proper explanation, but if it is the case that these nova progenitors do lack adequate mass then this is something that needs to be investigated, maybe mass estimates are wrong.

Edited October 10, 2015 by PB666

[problemecium]

Indeed.

I've always wondered this: how do we know that dark matter really is Mysterious Invisible Stuff^TM?

What we've observed is that, based on the motions of stars and galaxies, there is something out there that has mass and which doesn't glow or block light strongly.

So it could just be a bunch of rocks. Or Pez. Or, if it turns out that we were wrong about photons and they have mass, light itself.

And I suspect there's more than enough ordinary matter around, even if dark matter really is mystery goo, for white dwarfs to accrete mass and explode on their own.

[YNM]

It is possible for SN IA to happen below Chandrasekhar limit or higher than the limit. It's only recently realized in highly magnetized white dwarf, which previously any other force have never been considered. Even so, variations in light curve have been detected, and these variations have been linked to variations in absolute magnitude directly. Dark matter related... Think this is more along the Double Disk Dark Matter (DDDM) hypothesis, which also says that dark matter could be trapped in sun and other things, including your body, solely by gravitation.

[PB666]

It is possible for SN IA to happen below Chandrasekhar limit or higher than the limit. It's only recently realized in highly magnetized white dwarf, which previously any other force have never been considered. Even so, variations in light curve have been detected, and these variations have been linked to variations in absolute magnitude directly. Dark matter related... Think this is more along the Double Disk Dark Matter (DDDM) hypothesis, which also says that dark matter could be trapped in sun and other things, including your body, solely by gravitation.

But the accretion of material into celestials is driven by physical inteactions and resistence, neither of which dark matter would have. Where fernions would interact and slow down releasing heat DM would just fly between them and head back into space. Even accretion for fermionic matter is not easy to trigger, for dark matter its almot impossible unless its self interacting.

[YNM]

The DDDM theory makes that within dark matter, a new kind of interaction that we don't observe in any other matter-energy occur. Forgot about what is it though - the paper I've read about DDDM shows some feynmann diagram at the end (which I'm not fully understand how to read it).