Dark Matter

[neutralino]

Neutralino;
An article in the August issue of the “Journal Of Science” seems to think you don’t exist. It looks like scientist may give up on the dark matter particle idea in favor of a variance in the value of “g”. I think they’re right! You may need to choose another name or become a has-been.

Could you provide a link? I'd like to read about my possible non-existence.

[dleviwing]

Could you provide a link? I'd like to read about my possible non-existence.

You would need to be a subscriber to the online JS to get the actual article but here is another reference by the Science Channel web site.
http://dsc.discovery.com/news/2007/08/03/darkmatter_spa.html?category=space&guid=2007080310 3030

FYI other members: neutrallino is the name of the theoretical dark matter particle scientist are currently spending mega buck to find.

[neutralino]

You would need to be a subscriber to the online JS to get the actual article but here is another reference by the Science Channel web site.
http://dsc.discovery.com/news/2007/08/03/darkmatter_spa.html?category=space&guid=2007080310 3030

FYI other members: neutrallino is the name of the theoretical dark matter particle scientist are currently spending mega buck to find.

Ok, I've found the article in science (my university subscribes to most journals), and I see that it is describing modified newtonian dynamics. This theory, as the name suggests, modifies Newton's second law of dynamics, f=ma. Instead, it suggests the formula is f=m mu(a/a_0)a, where mu(x) is an undetermined function, and a_0 is a newly proposed fundamental constant. Of course, mu is chosen so that the equation reduces to newtons second law in the small limit.

There are newer theories of newtonian gravity which modify general relativity, called tensor vector scalar theories, which, in this case, reduce to GR in the appropriate limit. (If anyone knows anything about GR, these theories basically change the Einstein Hilbert action from R to R+(some other stuff)).

These are obviously just theories, but are worth pursuing to see what happens.