A major asymmetric ice trap in a planet-forming disk: II. prominent SO and SO2 pointing to C/O < 1
A. S. Booth,
N. van der Marel,
M. Leemker
et al.
Abstract:Gas-phase sulphur bearing volatiles appear to be severely depleted in protoplanetary disks. The detection of CS and non-detections of SO and SO 2 in many disks have shown that the gas in the warm molecular layer, where giant planets accrete their atmospheres, has a high C/O ratio. In this letter, we report the detection of SO and SO 2 in the Oph-IRS 48 disk using ALMA. This is the first case of prominent SO 2 emission detected from a protoplanetary disk. The molecular emissions of both molecules is spatially c… Show more
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