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Abstract

WATCHING STARBIRTH FROM THE ANTARCTIC PLATEAU

Nick Tothill
Smithsonian Astrophysical Observatory
Bio

The formation of stars out of gas and dust is one of the most important processes in the evolution of the universe. It is responsible for the production of elements such as carbon and oxygen, and for the formation of planets, and ultimately, life. This process takes place in the middle of giant dark clouds, and so is largely hidden from view. But infrared light from the forming stars and very high-frequency radio waves from the gas cloud can both escape the dark cloud; by observing this light, we can see and understand the formation of stars. The Antarctic Plateau is the best site on Earth from which to observe these wavelengths of light. Recently, the AST/RO telescope at the South Pole mapped out some of the nearest of these star-forming clouds, revealing them to be dynamic and turbulent structures, buffetted by nearby supernova explosions. New experiments and facilities are currently being planned and proposed for several Antarctic Plateau sites: radiotelescopes to map the formation of stars throughout the Milky Way; infrared telescopes whose ability to observe fine detail over wide fields of view with excellent sensitivity will reveal the population of stars currently being born; and optical experiments to search for the signatures of planets around nearby stars.

 

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