Astronomers accept used information from NASA’s Chandra X-ray Observatory to capture a dramatic icon of an enormous tail of hot gas stretching for to a greater extent than than a i grand k lite years behind a grouping of galaxies that is falling into the depths of an even-larger cluster of galaxies. Discoveries similar this tending astronomers acquire well-nigh the surroundings as well as atmospheric condition nether which the Universe’s biggest structures evolve.
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| Abell 2142 [Credit: X-ray: NASA/CXC/Univ. of Geneva, D. Eckert. Optical: SDSS provided past times CDS through Aladin] |
This novel icon shows i way: the capture of galaxies every bit they are drawn inward past times the extraordinarily powerful gravity of a galaxy cluster. In the left panel, a wide-field persuasion of the cluster, called Abell 2142, is seen. Abell 2142 contains hundreds of galaxies embedded inward multi-million-degree gas detected past times Chandra (purple). The middle of the galaxy cluster is located inward the middle of the regal emission, inward the lower utilisation of the image. Only the densest hot gas is shown here, implying that less dense gas further away from the middle of the cluster is non depicted inward the regal emission. In this composite image, the Chandra information accept been combined amongst optical information from the Sloan Digital Sky Survey inward red, green, as well as blue.
Influenza A virus subtype H5N1 vivid X-ray tail located inward the upper left of the icon is aiming straight for Abell 2142. The correct panel contains a closer persuasion of this tail. Influenza A virus subtype H5N1 galaxy grouping containing 4 vivid galaxies is close the “head” spell the “tail” extends off to the upper left. (Galaxy groups, every bit defined past times astronomers comprise a handful to a few dozen galaxies, every bit opposed to much to a greater extent than populous galaxy clusters.) The administration of the tail as well as the abrupt leading border of the hot gas unopen to the galaxy group, identified inward the labeled version, shows that the grouping is falling almost straight towards the middle of Abell 2142. Influenza A virus subtype H5N1 close-up persuasion of the 4 vivid galaxies (named G1, G3, G4, as well as G5) is shown every bit an optical as well as X-ray image. The galaxy G2 is a background object, rather than a fellow member of the galaxy group.
As the grouping of galaxies falls into Abell 2142, some of the hot gas is stripped off, much similar leaves from a tree inward the autumn during a rigid gust of wind. As the gas gets stripped off, it forms into a straight as well as relatively narrow tail that extends for some 800,000 lite years. The shape of the tail suggests that magnetic fields draped unopen to it are acting similar a shield to comprise the gas. Beyond well-nigh a i grand k lite years, the tail flares as well as becomes irregular. This may hateful the turbulence inward the galaxy cluster's hot gas is stronger inward that area, helping to suspension downwards the number of the magnetic shield.
The lower side of the tail flares out to a greater extent than than the upper side. This may endure caused past times a previous asymmetry inward the hot gas inward the galaxy group. Such an asymmetry could termination from an flare-up generated past times a supermassive dark hole inward i of the galaxies inward the group, or from mergers betwixt galaxies inward the group. Such events could Pb to some parts of the galaxy group's gas beingness stripped to a greater extent than easily than others.
The novel Chandra information too confirm that 2 of 4 vivid galaxies inward the group, G3 as well as G4, comprise speedily growing, supermassive dark holes. The 2 corresponding X-ray sources are closely overlapping inward the Chandra image.
Influenza A virus subtype H5N1 newspaper describing the results, led past times Dominique Eckert of the University of Geneva inward Switzerland, appeared inward the Astronomy & Astrophysics mag as well as is too available here. NASA's Marshall Space Flight Center inward Huntsville, Alabama, manages the Chandra plan for NASA's Science Mission Directorate inward Washington. The Smithsonian Astrophysical Observatory inward Cambridge, Massachusetts, controls Chandra's scientific discipline as well as flying operations.
Source: NASA [September 28, 2018]
Sumber http://archaeologynewsnetwork.blogspot.com
Influenza A virus subtype H5N1 vivid X-ray tail located inward the upper left of the icon is aiming straight for Abell 2142. The correct panel contains a closer persuasion of this tail. Influenza A virus subtype H5N1 galaxy grouping containing 4 vivid galaxies is close the “head” spell the “tail” extends off to the upper left. (Galaxy groups, every bit defined past times astronomers comprise a handful to a few dozen galaxies, every bit opposed to much to a greater extent than populous galaxy clusters.) The administration of the tail as well as the abrupt leading border of the hot gas unopen to the galaxy group, identified inward the labeled version, shows that the grouping is falling almost straight towards the middle of Abell 2142. Influenza A virus subtype H5N1 close-up persuasion of the 4 vivid galaxies (named G1, G3, G4, as well as G5) is shown every bit an optical as well as X-ray image. The galaxy G2 is a background object, rather than a fellow member of the galaxy group.
As the grouping of galaxies falls into Abell 2142, some of the hot gas is stripped off, much similar leaves from a tree inward the autumn during a rigid gust of wind. As the gas gets stripped off, it forms into a straight as well as relatively narrow tail that extends for some 800,000 lite years. The shape of the tail suggests that magnetic fields draped unopen to it are acting similar a shield to comprise the gas. Beyond well-nigh a i grand k lite years, the tail flares as well as becomes irregular. This may hateful the turbulence inward the galaxy cluster's hot gas is stronger inward that area, helping to suspension downwards the number of the magnetic shield.
The lower side of the tail flares out to a greater extent than than the upper side. This may endure caused past times a previous asymmetry inward the hot gas inward the galaxy group. Such an asymmetry could termination from an flare-up generated past times a supermassive dark hole inward i of the galaxies inward the group, or from mergers betwixt galaxies inward the group. Such events could Pb to some parts of the galaxy group's gas beingness stripped to a greater extent than easily than others.
The novel Chandra information too confirm that 2 of 4 vivid galaxies inward the group, G3 as well as G4, comprise speedily growing, supermassive dark holes. The 2 corresponding X-ray sources are closely overlapping inward the Chandra image.
Influenza A virus subtype H5N1 newspaper describing the results, led past times Dominique Eckert of the University of Geneva inward Switzerland, appeared inward the Astronomy & Astrophysics mag as well as is too available here. NASA's Marshall Space Flight Center inward Huntsville, Alabama, manages the Chandra plan for NASA's Science Mission Directorate inward Washington. The Smithsonian Astrophysical Observatory inward Cambridge, Massachusetts, controls Chandra's scientific discipline as well as flying operations.
Source: NASA [September 28, 2018]
Sumber http://archaeologynewsnetwork.blogspot.com
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