The command to turn off the instruments of the Hubble Space Telescope did not damage its instruments and after the instruments returned to work the legacy of Hubble continues astronomical research
A few days after the space observatory lit up, its main camera WFPC2 (known in professional parlance as Wide Field Planetary Camera 2) aimed at a new target - the pair of galaxies Arp 147 that are bound to each other by gravitational forces.
From a technical point of view, the image is evidence that turning off the telescope's instruments did not damage Hubble's camera, and from a scientific point of view, the image teaches astronomers new things about the unique structure of the pair of galaxies in this region of the sky.
According to the image you can see that the left galaxy looks like a normal galaxy that has not been affected by the gravitational forces, while the blue galaxy on the right has a different structure with a bright blue ring of stars.
The unique structure hides the violent past of the pair of galaxies. The blue galaxy on the right got its blue rings when the left galaxy passed through it, leaving it in the circular structure.
At the time of the impact, the gravitational forces created suitable conditions for the creation of new stars at the expense of the old stars. The red area at the bottom of the blue ring probably contains the galactic center that flew away as a result of the impact.
The image was taken on October 27-28, 2008 by the Hubble Space Telescope operated by NASA and the European Space Agency. The pair of galaxies Arp 147 resides in the constellation Leviathan (at a distance of 400 million light years from Earth). The image was taken by a WFPC2 camera on 3-color filters. The colors blue, green, and red represent the blue light, visible light, and infrared filters respectively.
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We are all a little too serious….
Even in my eyes, the connection between the picture and the explanation sounds somewhat suspicious, so I researched a bit...
These are the conclusions and I don't sign them: this is the same telescope that from day one made quite a few scandals... Shamefully, the software change also turned a tens of billions telescope into a serial glitch (like a handheld computer, only much more expensive). The whole purpose of the picture is to say with a smile "all ten", the red galaxy is the "1" and the blue is the "0" and together "10" - we are back to functioning, everything is fine! (Or in other words: the graphic artist contributed more to the image than the telescope)
This is 147 ARP, which in real pictures is far from showing as in the "corrected" picture (search on Google). The more scientific claim is that when galaxies "collide", due to the sparseness of the stars relative to the volume, there is no physical collision of stars. There is a gravitational wave that spreads like a ripple in a pond. The gravitational wave distorts the galaxies, compresses gas clouds and ignites the creation of new galaxies.
From what you see
Apparently the galaxy that appears intact has passed by the blue galaxy in its upper part,
There the damage is more significant.
The central part of the left galaxy passed near the top of the right galaxy,
And since the mass in the center of the left galaxy is much greater than the edge of the right galaxy
So obviously most of the damage is done in the right galaxy.
Of course this is a hypothesis.
Why does the central part of the "damaged" galaxy which is supposed to concentrate more mass and therefore more energy emit red light which is less energetic, while the ring is blue even though it is supposed to contain less energy?
Or is there no connection between the light emitted from a certain area and the amount of energy and mass density it contains?
Indeed, there is no doubt that the blue galaxy looks in the worst condition. The results of the collision are clearly visible in it, broken and scattered everywhere.
The pink one, on the other hand, is smooth and glowing, like a bride in her canopy. And as said, ready for another round.
It could also be that quite a long time has passed (in galaxy terms) since the collision, and since then the galaxy has had time to restore itself with the help of corrective gravitational forces
The truth is that you see red remnants at the bottom of the left galaxy, which correspond to the bright galaxy segmentation theory.
For Yehuda and Danny -
Yehuda - It is difficult to tell from the picture whether the left galaxy is perfect in its shape, because it faces us on its side.
Danny - 400 million light years is their distance from us and not from each other. I did not understand how a measurement error of 1% constitutes a distance of 4 million light years between the galaxies.
It would have been good if the article had actually referred to the distance between the two galaxies and perhaps their relative speed according to the theory of their "violent" past.
Interesting.
And perhaps another explanation: assuming a measurement error of 1%, the (shortest) distance between the galaxies could be 4 million light years (twice the distance between the Milky Way and Andromeda). My feeling stems from the difference in the sharpness in which the galaxies are seen, or in photography terms - depth of field. There could also be a play of lighting, a super nova that casts a powerful light on the blue galaxy.
From previous images of galaxy collisions, distortions were seen in the two colliding galaxies, the red galaxy is too 'perfect'.
Is there a slightly more detailed and convincing explanation for the article's claim?
What bothers me about the "explanation of the collision" is that the second galaxy emerged unscathed from the collision and is a completely perfect circle. I would expect that since the left galaxy appears to have a red "wound" at the bottom, this "wound" will have an effect in at least one area in the second galaxy as well. It was an excellent sign that the above galaxies had a common event. The lack of it bothers me.
Good night
and anxiously awaits the collision with Andromeda
Sabdarmish Yehuda
I jurk off to pictures like that
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