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Summary
| Description |
English: This rendering shows a snapshot from a cosmological simulation of a Lyman-alpha Blob similar to LAB-1. This simulation tracks the evolution of gas and dark matter using one of the latest models for galaxy formation running on the NASA Pleiades supercomputer. This view shows the distribution of gas within the dark matter halo, colour coded so that cold gas (mainly neutral hydrogen) appears red and hot gas appears white. Embedded at the centre of this system are two strongly star-forming galaxies, but these are surrounded by hot gas and many smaller satellite galaxies that appear as small red clumps of gas here. Lyman-alpha photons escape from the central galaxies and scatter off the cold gas associated with these satellites to give rise to an extended Lyman-alpha Blob.
Español: Esta renderización muestra una instantánea de una simulación cosmológica de una mancha Lyman-alfa similar a LAB-1. Esta simulación rastrea la evolución del gas y de la materia oscura usando uno de los últimos modelos de formación de galaxias en el superordenador Pleiades de la NASA. Esta imagen muestra la distribución del gas dentro del halo de materia oscura codificada en colores, de manera que el gas frío (principalmente hidrógeno neutro) aparece rojo y el gas caliente se ve en color blanco. Incrustadas en el centro de este sistema hay dos galaxias con fuerte formación estelar, pero están rodeadas por gas caliente y por muchas galaxias satélite más pequeñas que aquí aparecen como pequeñas manchas rojas de gas. Los fotones lyman-alfa escapan de las galaxias centrales y dispersan el gas frío asociado a estos satélites para dar lugar a una mancha extendida de Lyman-alfa. |
| Date | |
| Source | http://www.eso.org/public/images/eso1632a/ |
| Author | J.Geach/D.Narayanan/R.Crain |
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This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts 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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:52, 14 February 2024 | | 6,000 × 4,000 (1.54 MB) | C messier | full size |
| 09:04, 23 September 2016 |  | 1,280 × 853 (56 KB) | Jmencisom | User created page with UploadWizard |
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