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Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa 15

Aikawa, Yuri and Momose, Munetake and Thi, Wing-Fai and van Zadelhoff, Gerd-Jan and Qi, Chunhua and Blake, Geoffrey A. and van Dishoeck, Ewine F. (2003) Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa 15. Publications of the Astronomical Society of Japan, 55 (1). pp. 11-15. ISSN 0004-6264. http://resolver.caltech.edu/CaltechAUTHORS:20120919-102643964

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Abstract

Emission from the 2_(12)–1_(11) line of H_2CO has been detected and marginally resolved toward LkCa 15 by the Nobeyama Millimeter Array. The column density of H_2CO 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://pasj.asj.or.jp/v55/n1/550103/550103a.htmlPublisherUNSPECIFIED
http://adsabs.harvard.edu//abs/2003PASJ...55...11APublisherUNSPECIFIED
Additional Information:© 2003 Astronomical Society of Japan. Received 2002 October 6; accepted 2002 December 13. We are grateful to the staff of the Nobeyama Radio Observatory (NRO) for both operating the Millimeter Array and helping us with data reduction. Y.A. is supported by the Grant-in-Aid for Scientific Research of the Ministry of Education, Culture, Sports, Science and Technology of Japan (14740130). Astrochemistry in Leiden is supported by a SPINOZA grant from the Netherlands Organization for Scientific Research (NWO). G.A.B. gratefully acknowledges support from the NASA Exobiology and Origins of Solar Systems programs.
Funders:
Funding AgencyGrant Number
Scientific Research of the Ministry of Education, Culture, Sports, Science and Technology of Japan, Grant-in-Aid14740130
Netherlands Organization for Scientific Research (NWO) Spinoza grantUNSPECIFIED
NASA Exobiology programUNSPECIFIED
Origins of Solar Systems ProgramUNSPECIFIED
Subject Keywords:circumstellar matter; ISM: molecules; stars: individual (LkCa 15); stars: pre-main-sequence
Record Number:CaltechAUTHORS:20120919-102643964
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120919-102643964
Official Citation:Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa 15 Y. Aikawa, M. Momose, W.-F. Thi, G.-J. van Zadelhoff, C. Qi, G. A. Blake, and E. F. van Dishoeck Publ. Astron. Soc. Japan 55, pp11-15 (2003)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34206
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:19 Sep 2012 18:25
Last Modified:19 Sep 2012 18:25

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