File:M87 Super-Volcano.jpg
Jump to navigation
Jump to search
Size of this preview: 632 × 600 pixels. Other resolutions: 253 × 240 pixels | 506 × 480 pixels | 809 × 768 pixels | 1,079 × 1,024 pixels | 2,158 × 2,048 pixels | 4,932 × 4,680 pixels.
Original file (4,932 × 4,680 pixels, file size: 719 KB, MIME type: image/jpeg)
|
This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: This image shows the eruption of a galactic “super-volcano” in the massive galaxy M87, as witnessed by NASA's Chandra X-ray Observatory and NSF's Very Large Array (VLA).
The cluster surrounding M87 is filled with hot gas glowing in X-ray light (and shown in blue) that is detected by Chandra. As this gas cools, it can fall toward the galaxy's centre where it should continue to cool even faster and form new stars. However, radio observations with the VLA (red) suggest that in M87 jets of very energetic particles produced by the black hole interrupt this process. These jets lift up the relatively cool gas near the centre of the galaxy and produce shock waves in the galaxy's atmosphere because of their supersonic speed.Čeština: Tento snímek ukazuje obří galaktický „vulkán“ v obří galaxii M87, jak jej zachytily rentgenový dalekohled Rentgenová observatoř Chandra agentury NASA a observatoř Very Large Array (VLA) Národní vědecké nadace.
Kupa galaxií v okolí M87 je vyplněna horkým plynem, který na snímku Chandry září rentgenovým zářením (na obrázku modře). Při vychladnutí může plyn padat zpět do jádra galaxie, tam se mnohem rychleji ochlazuje a může tvořit nové hvězdy. Rádiová pozorování observatoří VLA (červeně) ovšem naznačují, že vysoce energické částice výtrysku v M87, který je poháněn černou dírou, tento vývoj narušují. Výtrysk s sebou strhává poměrně chladný plyn uprostřed galaxie a svou nadzvukovou rychlostí v galaktickém prostředí vytváří rázové vlny. |
| Date | |
| Source | NASA Image of the Day |
| Author | X-ray: NASA/CXC/KIPAC/N. Werner et al Radio: NSF/NRAO/AUI/W. Cotton |
Licensing
|
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
 |
Warnings:
|
|
This file, which was originally posted to
http://www.nasa.gov/multimedia/imagegallery/image_feature_1743.html, was reviewed on 7 June 2016 by reviewer Shizhao, who confirmed that it was available there under the stated license on that date.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:25, 20 August 2010 | | 4,932 × 4,680 (719 KB) | Originalwana | {{Information |Description={{en|1=This image shows the eruption of a galactic “super-volcano” in the massive galaxy M87, as witnessed by NASA's Chandra X-ray Observatory and NSF's [[:Category:Very L |
File usage
The following page uses this file:
Global file usage
The following other wikis use this file:
- Usage on cs.wikipedia.org
- Usage on de.wikipedia.org
- Usage on en.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on vi.wikipedia.org
- Usage on zh.wikipedia.org
