File:Gemini Focuses on a Mid-sized Galactic Black Hole (gemini1904a).jpg
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DescriptionGemini Focuses on a Mid-sized Galactic Black Hole (gemini1904a).jpg |
English: Light echo measured from the central black hole in a dwarf galaxy NGC 4395. The time delay between the continuum from the black hole’s accretion disk (blue light curve) and the hydrogen emission from orbiting gas clouds (red light curve) is measured as ~80 min., providing the light travel time from the black hole to the gas emission region. |
Date | 6 June 2019, 11:14:00 (upload date) |
Source | Gemini Focuses on a Mid-sized Galactic Black Hole |
Author | Credit for NGC 4395 image: Adam Block/Mount Lemmon SkyCenter/University of Arizona. Credit for accretion disk illustration: NASA/Chandra X-ray Observatory/M. Weiss. |
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This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 19:37, 27 October 2023 | 2,362 × 1,885 (907 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/gemini1904a.jpg via Commons:Spacemedia |
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Credit/Provider | Credit for NGC 4395 image: Adam Block/Mount Lemmon SkyCenter/University of Arizona. Credit for accretion disk illustration: NASA/Chandra X-ray Observatory/M. Weiss. |
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Source | NSF's NOIRLab |
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Date and time of data generation | 11:14, 6 June 2019 |
Software used | Adobe Illustrator CC 23.0 (Windows) |
File change date and time | 23:31, 6 June 2020 |
Date and time of digitizing | 02:36, 28 May 2019 |
Date metadata was last modified | 01:31, 7 June 2020 |
Unique ID of original document | uuid:65E6390686CF11DBA6E2D887CEACB407 |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |