posted on Nov, 11 2012 @ 02:41 PM
Originally posted by theDarthvader
Xploder, if these lenses are causing a distortion, then presumably the 'lens' of our own solar system, or at least our own galaxy, is impacting every
other galaxy we look at. Theoretically if this lens was expanding outwards, which is reasonably likely, then do you think this would cause everything
outside our galaxy to appear to be moving away? Or do you think this is not possible.
If that was happening, that would change physics in a big way! Am I getting the wrong idea here?
here is what we are looking at, when looking at galaxy scale "halos" and "lenses"
The left image, taken by the Hubble Space Telescope, shows a ring of light from a distant galaxy surrounding a closer or foreground galaxy (galaxy
SDSS J1631 + 1854), which is at the center of the left image. The closer galaxy is called a gravitational lens because its gravity bends light
from the more distant galaxy to form the ring of light, named an Einstein ring, as seen from the telescope. The image on the right has been adjusted
to remove the lens galaxy and show the ring more clearly. In a new study, University of Utah astronomer Adam Bolton and colleagues measured these
Einstein rings to determine the mass of 79 lens galaxies that are massive elliptical galaxies, the largest kind of galaxy with 100 billion stars. The
study found the centers of these big galaxies are getting denser over time, evidence of repeated collisions between massive galaxies. Credit: Joel
Brownstein, University of Utah, for NASA/ESA and the Sloan Digital Sky Survey
Read more at: phys.org...
there is a difference in apparent motion depending on a few factors,
1/ the galactic "halo" around the galaxy
2/ the "lensing galaxy" at its centre
3/ the surrounding density and refractivity
4/ the angle we encounter the lens at "incidence angle"
so from the example if we were "inside" the galaxy portion of the diagram (coloured centre region)
and the lens portion inflated in area, while the "halo" portion stayed the same overall volume,
there would be some interesting "optical effects" (optical illusions)
including apparent velocity,
in this context we are looking at star sized lenses and trying to explain a method to quantify what the distortions are from within a "heliosphere"
when measuring distance (or perceived distance)
from the changing shape (apparent) depending on our position relative to centre of the bubble.
edit on 11-11-2012 by XPLodER because: add pic