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主題: ALMA 拍獵戶座 作者: peter 於 2017-04-13 23:09:29 Stellar Fireworks in Orion
https://www.youtube.com/watch?v=Ej7pLgnyvVk (http://www.skyandtelescope.com/wp-content/uploads/ALMA_fireworks_600px.jpg) New ALMA observations of the Orion Nebula complex provide insights into explosions associated with starbirth. The colors in the ALMA data represent the relative Doppler shifting of the millimetre-wavelength light emitted by carbon monoxide gas. The blue colour in the ALMA data represents gas approaching at the highest speeds; the red colour is from gas moving toward us more slowly. ALMA (ESO / NAOJ / NRAO) / J. Bally This image from the Atacama Large Millimeter/submillimeter Array (ALMA) looks like an Independence Day display, but it’s not. These colorful streamers of gas are the remains of a centuries-old explosion, the concussive consequence of four (or perhaps more) stars that came together in a gravitational tussle. |