Originally posted by CLPrime
reply to post by XPLodER
I went back and read your thread from last year on gravitational microscoping, and
I'd love to see more observational examples of the effect, to see what sort of merit it truly has. You have at least two examples, but all galaxies
have observationally hidden mass. Can gravitational microscoping be applied to all galaxies under all circumstances? And are there more than two cases
where the proposed phenomenon is demonstrated more explicitly (as is the case with Hoag's object)?
Of course, I know the answer to both of those questions. I just want to be fair and see how you answer them.
the short answer is no, not all galaxies would display microscoping
gravitational microscoping is dependant on a number of factors
angle of incidence to the lense,
distence between our galaxy and the galaxy under observance,
magnification power of the "host" and our galaxies,
refractive properties of the "medium" inside the galaxy under observence,
strength of gravity around the central buldge
but the largest factor on the galaxy scale would be size and shape of the galaxy "buldge" in the center
the effect on stars in our own galaxy would be noticable,
much smaller distences provide for much larger microscoping effects,
again dependant on angle of incidence,
strength of gravity a center of host star,
refractive properties of the medium inside the star bubble compaired to the exterior medium,
there has been no "official" conformation of gravitational microscoping to date,
in reply to your request for more instances of gravitational microscoping,
these following images are considered by me to be "suspect" of microscoping
the first image is a infra red image of the bullet cluster (as in thread you linked)
but showing the lensing components
link to nasa pdf on bullet cluster lensing
i would contend that a small increase of magnification happens to most galaxies and we are viewing an image artifact of the galaxy in a much larger
image than would be seen without lensing.
the galaxy rotational curves if scaled down may fall back within acceptable limits.
the short answer is if some galaxies side on look to "thick" in the disc or plane
and if some look like the middle is missing directy down ontop
then the predictions would be confirmed
i would expect to see a disproportionate number of side on galaxies with "thick rims"
and any galaxy that is exactly "face on" (angle of incidence) to the observer would look to have its middle missing.
i had found the side on pictures but did not mark the link
now i have the "face on" shots hoags objecti can say that most if not all galaxies are lensed, and with some
angles of incidence providing much larger magnificational properties.
we would only see the out of perspective size scale