File:A black hole of puzzling lightness.jpg
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Summary[edit]
DescriptionA black hole of puzzling lightness.jpg |
English: This image taken with the Advanced Camera for Surveys (ACS) onboard the NASA/ESA Hubble Space Telescope captures a galaxy in the Virgo constellation. This camera was installed in 2002, and its wide field of view is double that of its predecessor, capturing superb images with sharp image quality and enhanced sensitivity that can be seen here.
The beautiful spiral galaxy visible in the centre of the image is catchily known as RX J1140.1+0307, and it presents an interesting puzzle. At first glance, this galaxy appears to be a normal spiral galaxy, much like the Milky Way, but first appearances can be deceptive! The Milky Way galaxy, like most large galaxies, has a supermassive black hole at its centre, but some galaxies are centred on lighter, intermediate-mass black holes. RX J1140.1+0307 is such a galaxy — in fact, it is centred on one of the lowest black hole masses known in any luminous galactic core. What puzzles scientists about this particular galaxy is that the calculations don’t add up. With such a relatively low mass for the central black hole, models for the emission from the object cannot explain the observed spectrum; unless there are other mechanisms at play in the interactions between the inner and outer parts of the accretion disc surrounding the black hole. |
Date | |
Source | https://www.spacetelescope.org/images/potw1702a/ |
Author | ESA/Hubble & NASA. Acknowledgement: Judy Schmidt |
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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 Acknowledgement: Judy Schmidt |
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Source | ESA/Hubble |
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Image title |
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Usage terms |
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Date and time of data generation | 06:00, 9 January 2017 |
Software used | Adobe Photoshop CC 2015 (Windows) |
File change date and time | 14:47, 8 July 2016 |
Date and time of digitizing | 21:07, 1 June 2016 |
Date metadata was last modified | 16:47, 8 July 2016 |
Unique ID of original document | xmp.did:3c8157e7-904b-2340-8fc5-a583af5c61f9 |
Keywords | RX J1140.1+0307 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |