Dust Grains and Circumstellar Motion: The Problem of the Henand the Egg |
| |
Authors: | Jean-Pierre J Lafon |
| |
Institution: | (1) Observatoire de Paris-Meudon, DASGAL, 92195 Meudon, France |
| |
Abstract: | In the last ten years, the number of models of circumstellar envelopes has exponentially increased, both concerning evolved
stars and forming stars with their planetary systems. The main progress was intoduction of chemistry and coupling with dynamics.
However, paradoxically, the nucleation theories did not evolve at the same rate; moreover, dynamics and nucleation are rarely
analysed at the same degree of accuracy: one is of them is always mostly drawing attention. At the same time observations
showed the presence of dust grains at a lot of sites where it could not be expected from usual quasi equilibrium theories.
Self consistent systems are omnipresent. Thus, it is important to distinguish causes and effects, even if the phenomena are
are strongly coupled.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|