File:M31 Core in X-rays.jpg
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M31_Core_in_X-rays.jpg (640 × 539 pixels, file size: 148 KB, MIME type: image/jpeg)
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DescriptionM31 Core in X-rays.jpg |
English: Using the newly unleashed observing power of the orbiting Chandra X-ray telescope, astronomers have now imaged the center of our near-twin island universe, finding evidence for an object so bizarre it would have impressed many 60s science fiction writers (and readers). Like the Milky Way, Andromeda's galactic center appears to harbor an X-ray source characteristic of a black hole of a million or more solar masses. Seen above, the false-color X-ray picture shows a number of X-ray sources, likely X-ray binary stars, within Andromeda's central region as yellowish dots. The blue source located right at the galaxy's center is coincident with the position of the suspected massive black hole. While the X-rays are produced as material falls into the black hole and heats up, estimates from the X-ray data show Andromeda's central source to be surprisingly cool - only a million degrees or so compared to the tens of millions of degrees indicated for Andromeda's X-ray binaries. |
Date | |
Source | Astronomy Picture of the Day, url=http://apod.nasa.gov/apod/ap000121.html |
Author | S. Murray, M. Garcia, et al., Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA) NASA Technical Rep.: Jay Norris. |
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Images produced by NASA are usually free of copyright [...] |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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current | 20:30, 25 April 2019 | 640 × 539 (148 KB) | FriedrichKieferer (talk | contribs) | Better resolution and quality. | |
21:33, 6 November 2009 | 512 × 431 (15 KB) | Marshallsumter (talk | contribs) | {{Information |Description={{en|1=Using the newly unleashed observing power of the orbiting Chandra X-ray telescope, astronomers have now imaged the center of our near-twin island universe, finding evidence for an object so bizarre it would have impressed |
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