First direct H2 measurements in two CO-rich exocometary belts yield CO/H2 lower limits of >1.35e-3 and >3.09e-5, showing the gas is H2-poor and supporting secondary exocometary origin.
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High CO/H2 ratios supports an exocometary origin for a CO-rich debris disk
First direct H2 measurements in two CO-rich exocometary belts yield CO/H2 lower limits of >1.35e-3 and >3.09e-5, showing the gas is H2-poor and supporting secondary exocometary origin.