EAS Publications Series
Volume 41, 2010Physics and Astrophysics of Planetary Systems
|Page(s)||177 - 180|
|Published online||08 January 2010|
T. Montmerle, D. Ehrenreich and A.-M. Lagrange (eds)
EAS Publications Series, 41 (2010) 177-180
Distributions of hot molecules in young circumstellar disks
ARC, School of Maths. and Physics,
Queen's University Belfast, Belfast BT7 1NN, UK
2 Dept. of Earth and Planetary Sciences, Kobe University, Nada, Kobe 657-8501, Japan
We have studied the effect of the gas accretion flow on the distribution of molecules in hot inner regions of young circumstellar disks. The gas-phase reactions initiated by evaporation of icy mantle on dust grains are calculated along the accretion flow, and the molecular line emission is simulated using the obtained abundance profiles. Our results have shown that some evaporated molecules keep high abundances and emit strong transition lines only when the accretion velocity is high enough.
© EAS, EDP Sciences, 2010
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