File:The velocity dispersion slope against The central velocity dispersion (geminiann18003b).tiff
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[edit]DescriptionThe velocity dispersion slope against The central velocity dispersion (geminiann18003b).tiff |
English: The slope η of the velocity dispersion profile is plotted against the central velocity dispersion σ0 for galaxies in multiple different samples. The blue points represent brightest galaxies in groups (BGGs) of high (square) and low (circles) density, while the green, red, and yellow points represent brightest cluster galaxies (BCGs) in various samples of galaxy clusters. The grey points indicate generic “early-type galaxies” (ETGs). The slope η is negative if the velocity dispersion decreases with radius and positive if it rises. Thus, massive BCGs tend to have rising profiles, with the stellar velocities responding to the cluster potential at larger radii. [Reproduced from Loubser et al. 2018, MNRAS, in press.] |
Date | 3 May 2018, 15:15:00 (upload date) |
Source | The velocity dispersion slope against The central velocity dispersion |
Author | International Gemini Observatory/NOIRLab/NSF/AURA |
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[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.
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current | 21:12, 20 October 2023 | 1,458 × 1,041 (909 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/geminiann18003b.tif via Commons:Spacemedia |
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Height | 1,041 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 59 |
Horizontal resolution | 150 dpi |
Vertical resolution | 150 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 21.2 (Windows) |
File change date and time | 09:51, 22 July 2020 |
Exif version | 2.31 |
Color space | Uncalibrated |