ESA/Hubble & NASA, S. Jha
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The narrow galaxy that curves gracefully around its spherical companion in this image is a fantastic example of a truly strange and extremely rare phenomenon. This image, taken with the NASA/ESA Hubble Space Telescope, depicts GAL-CLUS-022058, located in the southern hemisphere constellation Fornax (The Furnace).
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Nationalgeographic.co.id—An amazing view of space has been captured by the ESA/NASA team through the Hubble Space Telescope recently. The image shows one of what is known as a ‘ring Einstein‘ most complete ever found.
Scientists are using these observations in an attempt to develop a lensing model that will be used to study the physical properties of galaxy with a lens. In this way scientists have effectively been able to change Hubble’s observation capability to the equivalent of a 48 -meter telescope, as they have successfully measured the distance to an object and determined its magnification factor to 20.
Hubble has successfully published images in the series Picture of the Week, which features images from GAL-CLUS-022058, is located in the southern hemisphere’s constellation Fornax (The Furnace). The picture is a ring Einstein the largest and most comprehensive ever discovered by scientists. The Principal Investigator of the Hubble observations gave it the nickname “Molten Ring” This refers to the appearance and constellation of its parent.
Galaxy This narrow band that curves gracefully around its round companion is a fantastic example of a truly strange and extremely rare phenomenon.
First theorized by Einstein in his general theory of relativity, where the shape of these unusual objects can be explained through a process called gravitational lensing. Light shining from afar is bent and pulled by the gravity of an object between its source and the observer.
Reporting from Tech Explorist, principal investigator Anastasio Díaz-Sánchez of the Universidad Politécnica de Cartagena in Spain, said, “To obtain the physical properties galaxy lens, lens model required. Such a model can only be obtained with Hubble imaging. ”
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NASA
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This is the first ‘Einstein Ring’ in the NASA archive data.
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He also added, “Specifically, Hubble helped us identify four counter-images and star clusters from the lensed galaxy, which were used for the image. Picture of the Week.”
In this case, the light from the background galaxy has been distorted into the curve we see by the gravity of the galaxy cluster sitting in front of it. The nearly exact alignment of the background galaxy to the center of the galaxy cluster, seen in the center of this image, has warped and enlarged the background galaxy image into an almost perfect ring. The gravity of the galaxies in the cluster will immediately cause additional distortion.
“The lensed galaxy is one of the brightest galaxies in the millimeter wavelength regime,” said Helmut Dannerbauer of the Institute for Astrophysics of the Canary Islands in Spain and a member of the investigative team.
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A team of astronomers from Europe has now used a multi-wavelength dataset, which includes input from the NASA/ESA Hubble Space Telescope, to study Einstein’s rings in detail. Archive data of the instrument FORS Very Large Telescope (VLT) The European Southern Observatory determined the redshift value of the lensed galaxy. While the results of this study have been published in Research Paper on September 23, 2021 entitled The Einstein ring GAL-CLUS-022058s: a Lensed Ultrabright Submillimeter Galaxy at z=1.4796.
In the study, the team attempted to calculate the amplification factor, which is a valuable effect of gravitational lensing. This factor will allow the team to study the intrinsic physical properties of lens galaxies.
Nikolaus Sulzenauer, mahasiswa PhD Max Plank Institute for Radio Astronomy in Germany, explains, “The detection of molecular gas, the birthplace of new stars, allows us to calculate precise redshifts and thus gives us confidence that we are actually seeing very distant galaxies.”
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Philip Charles Yock/ResearchGate
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The formation of Einstein rings when light from a distant ‘source’ star is deflected by the gravitational field of a closer but collinear ‘lens’ star. Similar lensing is caused by the only planets in interstellar space, but they produce smaller Einstein rings because they are less massive.
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In this study the most interesting is the determination of the distance of the galaxy, where the light of the galaxy has traveled a distance of about 9.4 billion light years.
“Our research also shows that these were normal star-forming galaxies (the so-called main sequence galaxies) at the peak of star formation in the universe.” said Helmut Dannerbauer.
“We can clearly see the spiral arms and central bulge of the galaxy in the Hubble image. This will help us to better understand star formation in distant galaxies using planned observations,” added team member Susana Iglesias-Groth of the Institute for Astrophysics of the Canary Islands in Spain.
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