Saturday, March 9, 2013
The Eskimo Nebula X-ray
The XMM-Newton space observatory agree to us to look surrounded by the covering fuzzy Eskimo Nebula, instructive a warm face gas to 2 million degrees Celsius.
This image is a amalgam of data collected by XMM-Newton (blue) and the Hubble Space Telescope (red and green), and highlights the complex nature of terrestrial nebula, the swan song of stars like our Sun .
When these stars mature, they begin to shed their outer layers to expose its core, a high temperature.
The complex patterns that can be seen in the image are generated when ultraviolet radiation emitted by the star ionizes the previously ejected material, making it visible.
The Eskimo Nebula is about 4,000 light years from Earth in the constellation Gemini, and was discovered by William Herschel in 1787. This nebula began forming about 10,000 years ago, when its star began to emit high intensity winds.
The fragmented ring around it is composed of multiple comet-shaped objects, whose tails depart in the opposite direction to the star and extending a light year in space. These formations comprise the 'hood hairy' Eskimo, framing a small heart-shaped face. Thousands of years ago this dying star blew off its outer layers, forming a complex series of shells that surround it, illuminated in yellow in this picture.
The Eskimo face emits X-rays as a result of interaction between the strong winds of the star with ejector layers that surround it. In this region has temperature of around 2 million degrees Celsius, significantly higher than the temperature of their atmosphere, to about 14,000 ° C.
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