Witnessing the emergence of a carbon star
During the late stages of their evolution, Sun-like stars bring the products of nuclear burning to the surface. Most of the carbon in the Universe is believed to originate from stars with masses up to a few solar masses. Although there is a chemical dichotomy between oxygen-rich and carbon-rich evolved stars, the dredge-up itself has never been directly observed. In the last three decades, however, a few stars have been shown to display both carbon-and oxygen-rich material in their...[Show more]
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|Source:||Monthly Notices of the Royal Astronomical Society: Letters|
|01_Guzman-Ramirez_Witnessing_the_emergence_of_a_2015.pdf||946.58 kB||Adobe PDF||Request a copy|
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