reply to post by nenothtu
i will try to show how the lenses inside lenses interacte with one another in the ISM and IGM
at Inter Stella scales the two star lenses are focusing on each other in the ISM
these lenses are inside a larger a galaxy lense.
when the two star lenses move in relation to one another they act like a telescope with a shifting lense
imagine how a microscope works the magnification is because two lenses are focused on each other and by shifting the distence between the two lenses
(closer and further away) the image increases or decreases size and focus
this is like fig A in the diagram the two lenses interacte and factor into each other.the effect of the two lenses is like a microscope in that
everything is magnifyed including its perceived velocity so the effect is different in the ISM than in IGM
in figuar Z
the smaller sun lenses are inside the larger gravity lenses
the effect of the two galaxies lenses factor into each other and the shifting distences inside the galaxies
(between the star lens and the galaxy lens) and between the two galaxies directly
allow a range of effects
example if we were to look at an ant under the microscope
it looks bigger than it acually is and in distence terms moves too fast
so image a magnifying glass with a smaller magnifying lens inside it.
if you move the outter lens you can increase magnifycation
if you move the inner lense you can get magnifycation
but what happens if the inner lens is moving away from you while the outter lens is moving toward you.
then factor in the effect of having two lenses with lenses inside them magnifying off each other
(like a telescope) depending on which lense is moving and in what direction will depend on the magnification or the effect encounterd
the posabilities are
both galaxies are stationary in relation to one another and only one star lens is moving
both galaxies are stationary in relation to one another and both stars are moving in their lenses
the galaxies are moving away from one another and the stars are stationary inside their lenses
the galaxies are moving away from one another and the stars are moving inside their lenses
now depending on what lense is shifting and in what direction there are over twenty combinations of how individual lenses can be effecting the
observations
depending on whats acually moving its like looking through binoculars at a pair of binoculars
you can shift focus to see the lense of the second pair of binoculars and the second pair of binoculars can shift focus as well and you can increase
or decrease the acual distence between the binoculars
depending which focus is shifting or weather the distence between the binoculars is shifting will decide what the effects observed are
xploder
edit on 10-3-2011 by XPLodER because: spelling