Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

Explanations of spiral galaxies

0 views
Skip to first unread message

Mike Helland

unread,
Dec 11, 2004, 4:08:12 AM12/11/04
to
Uncle Al wrote:
> Mike Helland wrote:
> [snip]
>
> > Just one question, wouldn't the persistence of spiral galaxies be
> > explained for those who don't beleive in the Big Bang, or does it go
> > deeper than that?
>
> The visible and inferred ordinary mass distribution and its velocity
> vs. radius are incompatible with the observed shape and its
> persistence over time. The Big Bang is irrelevant. Two approaches to
> explain spiral galaxies are
>
> 1) That there is indeed the necessary spherical distribution of
> matter required by classical gravitation theories. It's curve fit to
> be "dark matter," axions and/or neutralinos from supersymmetry beyond
> the Standard Model.
>
> 2) That gravitation has a weak distance-dependent component,
> so-called MOND theories.

Correct me if I'm wrong, but plainly stated we have:

1) missing matter
2) gravity gets weaker by distance (beyond the inverse square law,
naturally)

It seems slightly obvious that a third conjecture would be something
like:

3) missing distance

In other words, the distance from the center of the galaxy to the tip
of the spiral arm is far greater than what is measured.

We know there is a black hole at the center of the galaxy.

We also assume that black holes look like a big black hole, with all
sorts of light coming from around the edges.

But we don't see that in the center of the galaxy, do we? I know, I
know, there is alot of light covering it up, in the way, right?

Maybe our picture of black holes is wrong, and the surface area of the
event horizon is essentially equal to zero. Instead of a black hole
with light around it, like a nice big halo, maybe a black hole
including the event horizon really is a single point, and the light
coming from around the edges of a zero-dimensional point, obviously now
just looks like light.

That would mean... in addition to the black hole "hiding" mass in the
center of the galaxy, it is also "hiding" distance?

It seems like something worth at least worth refuting anyways.

In any case, it is a testable hypothesis. If we directly measure the
surface area of the event horizon, we should affirm General
Relativity's prediction, or affirm the zero prediction and explain the
spiral galaxies at the same time?

Message has been deleted
Message has been deleted

abstract

unread,
Dec 14, 2004, 11:18:19 AM12/14/04
to

I understand that it's the interstellar dust "covering up" the galactic
center. Not to mention the crowding at the galactic plane.
Looking up from near the edge of the foam on your beer is "easier" than
trying to look through all the bubbles.
PHM

0 new messages