Posted on 09/24/2018 10:21:20 AM PDT by ETL
SDSS J1050+0017, also known as ClG J1050+0017, is approximately 6 billion light-years away from Earth.
The gigantic mass of this galaxy cluster creates the fascinating phenomenon of strong gravitational lensing.
SDSS J1050+0017’s gravity bends light coming from behind it in a similar way to how the base of a wine glass bends light.
The effects of this lensing can be clearly seen as curved streaks forming a circular shape around the center of the Hubble image.
Astronomers can use these distorted galaxies to calculate the mass of the cluster — including the mass of the dark matter within it — and to peer deeper into the Universe as otherwise possible.
Gravitational lensing does not only distort the views of galaxies, it also enlarges their appearance on the sky and magnifies their light.
Hubble has viewed gravitational lensing many times, and produced truly stunning images.
Scientists even set up a dedicated program to study different galaxy clusters which show a great number of lensed galaxies: the Frontier Fields Program.
This way some of the most distant galaxies in the Universe — including an extremely distant galaxy lensed by SDSS J1050+0017 — were found.
With each additional cluster being observed some more distant galaxies are added to this list, slowly completing our picture of how galaxies looked and evolved in the early Universe.
(Excerpt) Read more at sci-news.com ...
A gravitational lens is a distribution of matter (such as a cluster of galaxies) between a distant light source and an observer, that is capable of bending the light from the source as the light travels towards the observer.
This effect is known as gravitational lensing, and the amount of bending is one of the predictions of Albert Einstein’s general theory of relativity.[1][2] (Classical physics also predicts the bending of light, but only half that predicted by general relativity.[3])
Although Einstein made unpublished calculations on the subject in 1912,[4] Orest Khvolson (1924)[5] and Frantisek Link (1936)[citation needed] are generally credited with being the first to discuss the effect in print. However, this effect is more commonly associated with Einstein, who published a more famous article on the subject in 1936.[6]
Fritz Zwicky posited in 1937 that the effect could allow galaxy clusters to act as gravitational lenses. It was not until 1979 that this effect was confirmed by observation of the so-called “Twin QSO” SBS 0957+561.
Wow, an optical telescope can actually look back in time to see the Ebola administration?? Impressive!
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Below, 3 images of same galaxy, 5 of the quazar
In this Hubble Space Telescope image, the many red galaxies are members of the massive MACS J1149.6+2223 cluster, which creates distorted
and highly magnified images of the galaxies behind it. A large cluster galaxy (center of the box) has split the light from an exploding supernova
in a magnified background galaxy into four yellow images (arrows) to form an Einstein Cross. Image credit: NASA, ESA, and S. Rodney (JHU)
and the FrontierSN team; T. Treu (UCLA), P. Kelly (UC Berkeley) and the GLASS team; J. Lotz (STScI) and the Frontier Fields Team; M. Postman
(STScI) and the CLASH team; and Z. Levay (STScI)
https://astronomynow.com/2015/03/05/distant-supernova-split-four-ways-by-gravitational-lens/
The Hubble telescope was then directed earthward and a giant cluster was seen in the District of Columbia.
Gravitational lensing is predicted by Albert Einstein's theory of general relativity. Instead of light from a source traveling in a straight
line (in three dimensions), it is bent by the presence of a massive body, which distorts spacetime. An Einstein Ring is a special case of
gravitational lensing, caused by the exact alignment of the source, lens, and observer. This results in a symmetry around the lens, causing
a ring-like structure.
So the Hubble Space Telescope has caught a giant cluster. So what’s it going to do with it now?
Yes. We can make the pictures as pretty as we want.
No. This is not a valid reason for your double vision and subsequent moving violations.
Hmmm, gravitational bending. To bend is to curve, to curve starts a circle. Is there a chance Hubble is looking at itself and therefore ourselves? Just a stupid wild a** thought.
Oh, I thought we were talkin’ the Kavanaugh fiasco. Don’t need Hubble to see that.
That is cosmic man!
Cosmic!
FAR OUT!!
Thanks ETL.
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