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Paper: Gas in Debris Disks
Volume: 324, Debris Disks and the Formation of Planets: A Symposium in Memory of Fred Gillett
Page: 93
Authors: Jura, M.
Abstract: We consider current observations of gas within debris disks systems such as β Pic. While there is clearly some gas present, the evidence for molecular hydrogen is, at best, weak. It is possible that these systems have more mass in dust than in gas-very different from the interstellar dark clouds from which stars form, but similar to comets.
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