Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa15

Details Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa15 Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa15

2002-11-20

arxiv.org/abs/astro-ph/0211440v3

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures. accepted to PASJ (Publication of Astronomical Society of Japan)

Scientific paper

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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