File:An Active Centre ESO 021-G004.jpg
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Summary
[edit]DescriptionAn Active Centre ESO 021-G004.jpg |
English: This swirling mass of celestial gas, dust, and stars is a moderately luminous spiral galaxy named ESO 021-G004, located just under 130 million light-years away.
This galaxy has something known as an active galactic nucleus. While this phrase sounds complex, this simply means that astronomers measure a lot of radiation at all wavelengths coming from the centre of the galaxy. This radiation is generated by material falling inwards into the very central region of ESO 021-G004, and meeting the behemoth lurking there — a supermassive black hole. As material falls towards this black hole it is dragged into orbit as part of an accretion disc; it becomes superheated as it swirls around and around, emitting characteristic high-energy radiation until it is eventually devoured. The data comprising this image were gathered by the Wide Field Camera 3 aboard the NASA/ESA Hubble Space Telescope. |
Date | |
Source | https://www.spacetelescope.org/images/potw1951a/ |
Author | ESA/Hubble & NASA, D. Rosario et al. |
Licensing
[edit]ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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Credit/Provider | ESA/Hubble & NASA, D. Rosario et al. |
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Source | ESA/Hubble |
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Date and time of data generation | 06:00, 23 December 2019 |
Software used | Adobe Photoshop CC (Windows) |
File change date and time | 09:57, 30 September 2019 |
Date and time of digitizing | 12:05, 28 July 2019 |
Date metadata was last modified | 11:57, 30 September 2019 |
Unique ID of original document | xmp.did:ef6e6ac8-cf30-9641-9afd-7e1beeef855c |
Keywords | ESO 021-G004 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |