File:Gemini Focuses on a Mid-sized Galactic Black Hole (gemini1904a).tiff
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this JPG preview of this TIF file: 751 × 599 pixels. Other resolutions: 301 × 240 pixels | 602 × 480 pixels | 962 × 768 pixels | 1,280 × 1,022 pixels | 2,362 × 1,885 pixels.
Original file (2,362 × 1,885 pixels, file size: 5.45 MB, MIME type: image/tiff)
File information
Structured data
Captions
Summary[edit]
DescriptionGemini Focuses on a Mid-sized Galactic Black Hole (gemini1904a).tiff |
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. |
Other versions |
|
Licensing[edit]
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.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 19:37, 27 October 2023 | 2,362 × 1,885 (5.45 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/gemini1904a.tif via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 2,362 px |
---|---|
Height | 1,885 px |
Bits per component |
|
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 36 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 21.1 (Windows) |
File change date and time | 23:31, 6 June 2020 |
Exif version | 2.31 |
Color space | sRGB |