File:Sig05-020.jpg
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Captions
Summary
[edit]In the constellation Circinus, where previous visible-light observations by the Digital Sky Survey (left) saw only a faint hourglass-shaped patch of obscuring dust and gas, NASA's Spitzer Space Telescope's dust-piercing eyes see a big "Black Widow Nebula" teeming with clusters of massive young stars (right).
In the Spitzer image, the two opposing bubbles are being formed in opposite directions by the powerful outflows from massive groups of forming stars. The baby stars can be seen as specks of yellow where the two bubbles overlap.
When individual stars form from molecular clouds of gas and dust they produce intense radiation and very strong particle winds. Both the radiation and the stellar winds blow the dust outward from the star creating a cavity or, bubble.
In the case of the Black Widow Nebula, astronomers suspect that a large cloud of gas and dust condensed to create multiple clusters of massive star formation. The combined winds from these groups of large stars probably blew out bubbles into the direction of least resistance, forming a double bubble.
The infrared image was captured by the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) Legacy project. The Spitzer picture is a four-channel false-color composite, showing emission from wavelengths of 3.6 microns (blue), 4.5 microns (green), 5.8 microns (orange) and 8.0 microns (red).
File info
[edit]DescriptionSig05-020.jpg | Black Widow Nebula Hiding in the Dust |
Date | |
Source | http://www.spitzer.caltech.edu/images/2385-sig05-020-Black-Widow-Nebula-Hiding-in-the-Dust |
Author | NASA/JPL-Caltech/E. Churchwell (University of Wisconsin-Madison) and the GLIMPSE Team |
Permission (Reusing this file) |
http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml |
Individual images
[edit]see http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=sig05-020 High quality tif files also avaliable.
Licensing
[edit]Public domainPublic domainfalsefalse |
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.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:20, 10 July 2007 | 3,000 × 2,400 (3.79 MB) | Anzibanonzi (talk | contribs) | ==Summary== In the constellation Circinus, where previous visible-light observations by the Digital Sky Survey (left) saw only a faint hourglass-shaped patch of obscuring dust and gas, NASA's Spitzer Space Telescope's dust-piercing eyes see a big "Black W |
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Width | 3,000 px |
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Height | 2,400 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 14:52, 26 October 2005 |
Color space | Uncalibrated |
Image width | 3,000 px |
Image height | 2,400 px |
Date and time of digitizing | 07:52, 26 October 2005 |
Date metadata was last modified | 07:52, 26 October 2005 |
IIM version | 2 |