File:Spring Cleaning in an Infant Star System.jpg
Original file (2,000 × 2,000 pixels, file size: 179 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionSpring Cleaning in an Infant Star System.jpg |
English: This image depicts the dusty disc encircling the young, isolated star HD 169142. The Atacama Large Millimeter/submillimeter Array (ALMA) imaged this disc in high resolution by picking up faint signals from its constituent millimetre-sized dust grains. The vivid rings are thick bands of dust, separated by deep gaps.
Optimised to study the cold gas and dust of systems like HD 169142, ALMA’s sharp eyes have revealed the structure of many infant solar systems with similar cavities and gaps. A variety of theories have been proposed to explain them — such as turbulence caused by magnetorotational instability, or the fusing of dust grains — but the most plausible explanation is that these pronounced gaps were carved out by giant protoplanets. When solar systems form gas and dust coalesce into planets. These planets then effectively spring clean their orbits, clearing them of gas and dust and herding the remaining material into well-defined bands. The deep gaps seen in this image are consistent with the presence of multiple protoplanets — a finding that agrees with other optical and infrared studies of the same system. Observing such dusty protoplanetary discs with ALMA allows scientists to investigate the first steps of planet formation in a bid to unveil the evolutionary paths of these infant systems. |
Date | |
Source | https://www.eso.org/public/images/potw1714a/ |
Author | ALMA (ESO/NAOJ/NRAO)/ Fedele et al. |
Licensing
[edit]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.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 07:19, 10 August 2019 | 2,000 × 2,000 (179 KB) | BevinKacon (talk | contribs) | actual size from ESO original source | |
13:06, 3 April 2017 | 1,280 × 1,280 (60 KB) | Jmencisom (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
- File:Spring Cleaning in an Infant Star System (33684941831).jpg (file redirect)
File usage on other wikis
The following other wikis use this file:
- Usage on el.wikipedia.org
- Usage on en.wikipedia.org
- Usage on en.wikiversity.org
- Usage on ja.wikipedia.org
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 | ALMA (ESO/NAOJ/NRAO)/ Fedele et al. |
---|---|
Source | European Southern Observatory |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 06:00, 3 April 2017 |
Software used | The ESA/ESO/NASA FITS Liberator |
File change date and time | 15:36, 10 March 2017 |
Date and time of digitizing | 15:59, 10 March 2017 |
Date metadata was last modified | 16:36, 10 March 2017 |
Unique ID of original document | xmp.did:f9e9cb28-549a-254b-b7af-db66f75b631c |
Keywords | HD 169142 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |