File:The M-L versus velocity dispersion (geminiann13002a).jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this preview: 392 × 599 pixels. Other resolutions: 157 × 240 pixels | 500 × 764 pixels.
Original file (500 × 764 pixels, file size: 141 KB, MIME type: image/jpeg)
File information
Structured data
Captions
Summary
[edit]DescriptionThe M-L versus velocity dispersion (geminiann13002a).jpg |
English: The dynamical mass-to-light (M/L) ratio and the strength of the higher order Balmer lines Hδ and Hγ versus the velocity dispersion of the galaxy. The M/L versus velocity dispersion relation is a representation of the Fundamental Plane. The solid blue line shows the best fit to the low-redshift samples (Coma, Perseus and A194), while the dot-dashed lines show models for formation redshifts dependent on the velocity dispersions, color-coded for each of the clusters. The M/L ratios are modeled reasonably well by these models. However, the strength of the Balmer lines is significantly weaker than expected from the models, indicating that the M/L ratios and the Balmer line measurements cannot be reconciled with a simple passive evolution model with a formation redshift depending on the galaxy velocity dispersion. |
Date | 1 February 2013, 15:28:00 (upload date) |
Source | The M/L versus velocity dispersion |
Author | NOIRLab/Gemini Observatory/AURA |
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 | 18:25, 23 October 2023 | 500 × 764 (141 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/geminiann13002a.jpg 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.
Credit/Provider | NOIRLab/Gemini Observatory/AURA |
---|---|
Source | NSF's NOIRLab |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 15:28, 1 February 2013 |
Software used | Adobe Photoshop 21.2 (Windows) |
File change date and time | 15:28, 27 July 2020 |
Date and time of digitizing | 01:31, 30 January 2013 |
Date metadata was last modified | 10:28, 27 July 2020 |
Unique ID of original document | uuid:9192FD93626CE211868FA24538C7EB9A |
Copyright status | Copyright status not set |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |