This 2010 Chandra X-ray Observatory image shows a view of NGC 1068, one of the nearest and brightest galaxies containing a rapidly growing supermassive black hole. NGC 1068 is located about 50 million light years from Earth and contains a supermassive black hole about twice as massive as the one in the middle of the Milky Way Galaxy.
Image credit: NASA/CXC/MIT/C.Canizares, D.Evans et al.
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Happy #StarWarsDay! A long time ago, in a galaxy far, far away, a giant black hole at the center of a massive elliptical galaxy made a mark on its surroundings! An “H”-shaped structure is found in a detailed new X-ray map from Chandra X-ray Observatory of the multimillion-degree gas around the galaxy Messier 84 (M84).
As gas is captured by the gravitational force of the black hole, some of it will fall into the abyss, never to be seen again. Some of the gas, however, avoids this fate and instead gets blasted away from the black hole in the form of jets of particles. These jets can push out cavities, in the hot gas surrounding the black hole. Given the orientation of the jets to Earth and the profile of the hot gas, the cavities in M84 form what appears to resemble the letter “H.” The H-shaped structure in the gas is an example of pareidolia, which is when people see familiar shapes or patterns in random data. Pareidolia can occur in all kinds of data from clouds to rocks and astronomical images.
Image credit: X-ray: NASA/CXC/Princeton Univ/C. Bambic et al.; Optical: SDSS; Radio: NSF/NRAO/VLA/ESO; Image processing: NASA/CXC/SAO/N.Wolk
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The galaxy Centaurus A (Cen A) shines bright in this image combining data from multiple observatories. In the center of this galaxy is a supermassive black hole feeding off the gas and dust encircling it, and large jets of high-energy particles and other material spewing out. The jet shown at the upper left of this image extends for about 13,000 light-years away from the black hole. Also visible is a dust lane, wrapping around the middle of the galaxy, which may have resulted from a collision with a smaller galaxy millions of years ago.
Colors in this image have been chosen to reflect the sources of data. Blue shows X-ray light captured by NASA’s Chandra X-ray Observatory, orange represents X-rays detected by NASA’s Imaging X-ray Polarimetry Explorer (IXPE) satellite, and optical light seen by the European Southern Observatory in Chile is colored white and gray.
Cen A has been studied extensively since the launch of Chandra in 1999. With IXPE, which launched in 2021, scientists can understand the mysteries of this object in a new way. IXPE is specialized to look at a property of X-ray light called polarization, which relates to the organization of electromagnetic waves. This specialized measurement is helping scientists study how particles become accelerated to high energies and speeds — nearly the speed of light — at extreme cosmic objects like this one.
At Cen A, researchers using IXPE seek to understand what causes the X-ray emission in the jets. So far, scientists have not detected X-ray polarization at Cen A, indicating that particles much heavier than electrons, such as protons, are not producing the X-rays. More insights are to come as scientists analyze the data.
Cen A is found 12 million light-years from Earth in the constellation Centaurus and represents the fifth brightest galaxy in the sky.
Image credit: X-ray: (IXPE): NASA/MSFC/IXPE/S. Ehlert et al.; (Chandra): NASA/CXC/SAO; Optical: ESO/WFI; Image processing: NASA/CXC/SAO/J.Schmidt
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Two spectacular tails of X-ray emission was seen in this 2010 image trailing behind a galaxy using the Chandra X-ray Observatory. At the front of the tail is the galaxy ESO 137-001. The brighter of the two tails has been seen before and extends for about 260,000 light years. The detection of the second, fainter tail, however, was a surprise to the scientists. At the front of the tail is the galaxy ESO 137-001. The brighter of the two tails has been seen before and extends for about 260,000 light years. The detection of the second, fainter tail, however, was a surprise to the scientists.
Image credit: NASA/CXC/UVa/M. Sun, et al; H-alpha
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X-rays detected by the Chandra X-ray Observatory expose a wealth of exotic objects and high-energy features. In this 2009 image of the region around the Galactic Center, pink represents lower energy X-rays and blue indicates higher energy. Hundreds of small dots show emission from material around black holes and other dense stellar objects. A supermassive black hole - some four million times more massive than the Sun - resides within the bright region in the lower right. The diffuse X-ray light comes from gas heated to millions of degrees by outflows from the supermassive black hole, winds from giant stars, and stellar explosions. This central region is the most energetic place in our galaxy.
Image credit: NASA/CXC/UMass/D. Wang et al.
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