4.6 Article

THE LACK OF CHEMICAL EQUILIBRIUM DOES NOT PRECLUDE THE USE OF CLASSICAL NUCLEATION THEORY IN CIRCUMSTELLAR OUTFLOWS

Journal

ASTROPHYSICAL JOURNAL LETTERS
Volume 737, Issue 1, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/737/1/L6

Keywords

astrochemistry; circumstellar matter; methods: numerical; stars: AGB and post-AGB; stars: winds, outflows

Funding

  1. NASA

Ask authors/readers for more resources

Classical nucleation theory (CNT) has been used in models of dust nucleation in circumstellar outflows around oxygen-rich asymptotic giant branch stars. One objection to the application of CNT to astrophysical systems of this sort is that an equilibrium distribution of clusters (assumed by CNT) is unlikely to exist in such conditions due to a low collision rate of condensable species. A model of silicate grain nucleation and growth was modified to evaluate the effect of a nucleation flux orders of magnitude below the equilibrium value. The results show that a lack of chemical equilibrium has only a small effect on the ultimate grain distribution.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available