Hubble weighs in on mass of three million billion suns

January 16, 2018 by Karl Hille, NASA's Goddard Space Flight Center
Credit: ESA/Hubble & NASA, RELICS

In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion suns—so it's little wonder that it has earned the nickname of "El Gordo" ("the Fat One" in Spanish)! Known officially as ACT-CLJ0102-4915, it is the largest, hottest, and brightest X-ray galaxy cluster ever discovered in the distant Universe.

Galaxy clusters are the largest objects in the Universe that are bound together by gravity. They form over billions of years as smaller groups of galaxies slowly come together. In 2012, observations from ESO's Very Large Telescope, NASA's Chandra X-ray Observatory and the Atacama Cosmology Telescope showed that El Gordo is actually composed of two colliding at millions of kilometers per hour.

The formation of galaxy clusters depends heavily on and dark energy; studying such clusters can therefore help shed light on these elusive phenomena. In 2014, Hubble found that most of El Gordo's mass is concealed in the form of dark matter. Evidence suggests that El Gordo's "normal" matter—largely composed of hot gas that is bright in the X-ray wavelength domain—is being torn from the dark matter in the collision. The hot gas is slowing down, while the dark matter is not.

This image was taken by Hubble's Advanced Camera for Surveys and Wide-Field Camera 3 as part of an observing program called RELICS (Reionization Lensing Cluster Survey). RELICS imaged 41 massive galaxy clusters with the aim of finding the brightest distant galaxies for the forthcoming James Webb Space Telescope to study.

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1 / 5 (7) Jan 16, 2018
You lost me at Dark Matter!
4.5 / 5 (8) Jan 16, 2018
Hey buddy! Careful where your hands go, while you're groping around in the Dark!
5 / 5 (5) Jan 16, 2018
You lost me at Dark Matter!

Hey buddy! Careful where your hands go, while you're groping around in the Dark!

ROTFL ! Thank you @rrwillsj, you totally made my day.
1.4 / 5 (10) Jan 16, 2018
"El Gordo is actually composed of two galaxy clusters colliding at millions of kilometers per hour."

...........meanwhile the remainder of the universe is flying apart so fast that we're told most of it will disappear & the sky will one day turn black, well except for in this corner of the Universe.
1 / 5 (6) Jan 16, 2018
The universe is not falling apart. That's a flaw by repetition. The speed of a wavelet is Initial_Wavelength/Measured_Period; also, correcting another repetition, matter is composed of only the charge, not quarks, et al charge is composed of only its field. So yeah, ya need a computer to define the matter streams, in this case matter is measured in galaxies. Typically the center of mass of the galaxies combined, are moving with the stream. You can do the dynamics of the collisions. Don't forget, you can see behind you looking forward, in all directions. Complexity comes when defining the acceleration vector. You must decide wither the stream is forming, has been formed, no events to squatter the perimeter of our vision, and an understanding that the polarization and the velocity vector are combined. So that's a real calculation made over many bodies; which, should follow Coulomb and Maxwell. Maybe if we knew how to make measurements based on fact, not idea
1 / 5 (5) Jan 16, 2018
The correct Poynting Vector should show the changing location of the charge and the charge has the oscillating vector easily removed, the directional vector is typically the vector of the container of the oscillator. Also we are moving, so get a computer, this sounds tiresome! You might be required to do a few simulations in order to properly define the source relative to ... it's ok to use multiple references, given the reference can be properly referenced. But how do you get the things you need? It's a dark intellect, not dark matter! The charge has the velocity of the container + c + osc.
1 / 5 (5) Jan 16, 2018
But the directional vector is relative to the center of the field and the center is moving, else no ripple. Do we understand the internal shielding of a lump of matter? Transformation from any point in/on matter? If you "ain't" got that, meh, dark matter?
1 / 5 (5) Jan 16, 2018
My thinking, we're moving toward a place larger and brighter than anything we've ever seen. If you see it, well do the math.
5 / 5 (3) Jan 17, 2018
You lost me at Dark Matter!

Many wish it was that easy.....
2.3 / 5 (3) Jan 21, 2018
3.10 ^ 15 suns! What are the two galaxies that collide, like two goats on a log? That's what they do, to put more strain on our wise men to figure out this puzzle. Again let some dark matter, the gasses go headless, chaos in the universe. Again, we see that the universe is violently saturated, without laws and rules. She does not know what comes from, a pure disaster. !!
Again, gravity is the one who collected it all into so many bundles of celestial bodies. Well, that's all right, just need to know how this gravity creates and what its role is in the universe. But how could they measure such a mass, when they still do not know how to determine the true paths and movements of celestial bodies. They even do not know why our moon has a curved one side facing the Earth.
When they understand this, they will change both themselves and their telescopes.

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