Document Type
Article
Abstract
We present high-resolution, near-infrared NIRSPEC observations of CO absorption toward six class II T Tauri stars: AA Tau, DG Tau, IQ Tau, RY Tau, CW Tau, and Haro 6-5b. 12CO overtone absorption lines originating from the circumstellar disk of each object were used to calculate line-of-sight gas column densities toward each source. We measured the gas/dust ratio as a function of disk inclination, utilizing measured visual extinctions and inclinations for each star. The majority of our sources show further evidence for a correlation between the gas/dust column density ratio and disk inclination similar to that found by Rettig et al.
Publication Date
July 2012
Publication Title
The Astrophysical Journal
Volume
754
Issue
1
First Page
1
Last Page
10
DOI
10.1088/0004-637X/754/1/64
Recommended Citation
Horne, David; Gibb, Erika; Rettig, Terrence; Brittain, Sean; Tilley, David; and Balsara, Dinshaw, "The Gas/Dust Ratio of Circumstellar Disks: Testing Models of Planetesimal Formation" (2012). Physics Faculty Works. 15.
DOI: https://doi.org/10.1088/0004-637X/754/1/64
Available at:
https://irl.umsl.edu/physics-faculty/15
