File:RO19 rerun Fig6a.png
Jump to navigation
Jump to search
Size of this preview: 763 × 599 pixels. Other resolutions: 306 × 240 pixels | 611 × 480 pixels | 978 × 768 pixels | 1,280 × 1,005 pixels | 2,560 × 2,011 pixels | 4,257 × 3,344 pixels.
Original file (4,257 × 3,344 pixels, file size: 494 KB, MIME type: image/png)
Captions
Captions
Diagram showing that at the turnaround epoch when an overdensity stops expanding and starts collapsing, it almost certainly must occupy a positively curved region of space
Summary[edit]
| Description |
English: Galaxies and their dark matter haloes form from small density perturbations in the expanding Universe. These overdense regions expand more slowly than the rest of the Universe and eventually "turn around" – start collapsing instead of expanding. The blue dots in this figure (for a standard LCDM reference model) show that at this turnaround epoch, these galaxy formation regions are positively curved. If the Universe were or remained flat, then galaxies could not be formed. Roukema & Ostrowski “Does spatial flatness forbid the turnaround epoch of collapsing structures?”, in Journal of Cosmology and Astroparticle Physics (in en), volume 2019, issue 12, (Please provide a date or year), DOI:, ISSN 1475-7516, Wikidata Q96692319, pages 049-049 |
| Date | |
| Source | Own work |
| Author | Boud |
| Other versions | File:RO19 rerun Fig6a.xcf |
This figure was produced from a fresh run of the reproducibility script for the paper at https://codeberg.org/boud/1902.09064 .
Licensing[edit]
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:02, 10 August 2023 | | 4,257 × 3,344 (494 KB) | Boud (talk | contribs) | write 'FLAT' at both sides of the line indicating flatness |
| 18:01, 10 August 2023 |  | 4,257 × 3,344 (463 KB) | Boud (talk | contribs) | Uploaded own work with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
