File:An active centre ESA21537595.tiff
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[edit]DescriptionAn active centre ESA21537595.tiff |
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 | 23 December 2019 (upload date) |
Source | An active centre |
Author | European Space Agency |
Other versions |
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Activity InfoField | Space Science |
Mission InfoField | Hubble Space Telescope |
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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This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ESA/Hubble & NASA, D. Rosario et al.; CC BY 4.0
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current | 01:43, 21 August 2024 | 3,553 × 3,472 (21.37 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/12/an_active_centre/21537585-1-eng-GB/An_active_centre.tif via Commons:Spacemedia |
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Width | 3,553 px |
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Height | 3,472 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 24 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CC (Windows) |
File change date and time | 09:57, 30 September 2019 |
Color space | Uncalibrated |