EAS Publications Series
Volume 41, 2010Physics and Astrophysics of Planetary Systems
|Page(s)||181 - 184|
|Published online||08 January 2010|
T. Montmerle, D. Ehrenreich and A.-M. Lagrange (eds)
EAS Publications Series, 41 (2010) 181-184
Molecular hydrogen emission from protoplanetary disks: UV and X-ray irradiated disk model with dust evolution
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
3 Dept. of Astronomy and Astrophysics, Pennsylvania State University, PA 16802, USA
We have modelled a detailed physical structure of protoplanetary disks, taking into account X-ray and UV irradiation from a central star, as well as dust size growth and settling towards the disk midplane. In addition, we have calculated the level populations and line emission of molecular hydrogen in the disks. As a result, we reproduce the observed strong H2 line flux if the disks are influenced by strong UV and X-ray irradiation. Also, the dust evolution changes the physical properties of the disk, and thus the H2 line ratios.
© EAS, EDP Sciences, 2010
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