File:Astronomy in action ESA23438306.tiff
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[edit]DescriptionAstronomy in action ESA23438306.tiff |
English: This striking image features a relatively rare celestial phenomenon known as a Herbig–Haro object. This particular Herbig–Haro object is named HH111, and was imaged by Hubble’s Wide Field Camera 3 (WFC3). These spectacular objects are formed under very specific circumstances. Newly formed stars are often very active, and in some cases they expel very narrow jets of rapidly moving ionised gas — gas that is so hot that its molecules and atoms have lost their electrons, making the gas highly charged. The streams of ionised gas then collide with the clouds of gas and dust surrounding newly-formed stars at speeds of hundreds of kilometres per second. It is these energetic collisions that create Herbig–Haro objects such as HH111. WFC3 takes images at optical and infrared wavelengths, which means that it observes objects at a wavelength range similar to the range that human eyes are sensitive to (optical) and a range of wavelengths that are slightly too long to be detected by human eyes (infrared). Herbig–Haro objects actually release a lot of light at optical wavelengths, but they are difficult to observe because their surrounding dust and gas absorb much of the visible light. Therefore, the WFC3’s ability to observe at infrared wavelengths — where observations are not as affected by gas and dust— is crucial to observing Herbo–Haro objects successfully. |
Date | 3 September 2021 (upload date) |
Source | Astronomy in action |
Author | European Space Agency |
Other versions |
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Activity InfoField | Space Science |
Mission InfoField | Hubble Space Telescope |
Licensing
[edit]ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ESA/Hubble & NASA, B. Nisini; CC BY 4.0
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:54, 21 August 2024 | 1,066 × 947 (5.81 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2021/09/astronomy_in_action/23438296-1-eng-GB/Astronomy_in_action.tif via Commons:Spacemedia |
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Width | 1,066 px |
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Height | 947 px |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 25,402 |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 947 |
Bytes per compressed strip | 6,057,012 |
Horizontal resolution | 25.4 dpi |
Vertical resolution | 25.4 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 22.4 (Windows) |
File change date and time | 21:53, 2 August 2021 |
Color space | Uncalibrated |