CHEMISTRY IN PROTOPLANETARY DISKS: ANALYSIS OF UNCERTAINTIES

Th. Henning (1) , E. Herbst (2, 3, 4) , D. Semenov (1) , A. M. Sobolev (5) , A. I. Vasyunin (1) , Valentine Wakelam (6, 7, 8)

1 MPIA - Max-Planck-Institut für Astronomie
2 OSU - Ohio State University [Columbus]
3 Department of Physics
4 Departments of Astronomy and Chemistry
5 Ural State University
6 L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux
7 OASU - Observatoire aquitain des sciences de l'univers
8 LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]

We identify those observable molecules in disks which modeled abundances are not greatly influenced by the uncertainties in the reaction rates of modern astrochemical networks. We demonstrate that the rate coefficients of only a handful of chemical reactions need to be determined more accurately in order to improve the reliability of disk astrochemical models.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Astrophysique [astro-ph]

Th. Henning, E. Herbst, D. Semenov, A. M. Sobolev, A. I. Vasyunin, et al.. CHEMISTRY IN PROTOPLANETARY DISKS: ANALYSIS OF UNCERTAINTIES. Molecules in Space and Laboratory International conference 14-18 May 2007, 2007, Paris, France. pp.112. ⟨hal-00261261⟩