Detection of Exocometary CO within the 440 Myr Old Fomalhaut Belt: A Similar CO+CO2Ice Abundance in Exocomets and Solar System Comets

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© 2017. The American Astronomical Society. All rights reserved. Recent Atacama Large Millimeter/submillimeter Array observations present mounting evidence for the presence of exocometary gas released within Kuiper Belt analogs around nearby main-sequence stars. This represents a unique opportunity to study their ice reservoir at the younger ages when volatile delivery to planets is most likely to occur. We here present the detection of CO J = 2-1 emission colocated with dust emission from the cometary...
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