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Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa15

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arxiv astro-ph/0211440 v3 pith:3AVGQPLB submitted 2002-11-20 astro-ph

Yuri Aikawa , Munetake Momose , Wing-Fai Thi , Gerd-Jan van Zadelhoff , Chunhua Qi , Geoffrey A. Blake , Ewine F. van Dishoeck This is my paper
classification astro-ph
keywords disklkca15observedaroundarraybeenbehaviorcentrally
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abstract

Emission from the $2_{12}-1_{11}$ line of H$_2$CO has been detected and marginally resolved toward LkCa15 by the Nobeyama Millimeter Array. The column density of H$_2$CO is higher than that observed in DM Tau and than predicted by theoretical models of disk chemistry; also the line-intensity profile is less centrally peaked than that for CO. A similar behavior is observed in other organic gaseous molecules in the LkCa 15 disk.

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