Chemistry in Disks: the Effect of Central Stars

Details Chemistry in Disks: the Effect of Central Stars Chemistry in Disks: the Effect of Central Stars

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21537402q&link_type=abstract

American Astronomical Society, AAS Meeting #215, #374.02; Bulletin of the American Astronomical Society, Vol. 42, p.582

Astronomy and Astrophysics

Astronomy

Scientific paper

We present SMA observations of HCO+, DCO+, HCN 3-2 and CN 2-1 towards disks around TW Hya (a low-mass T Tauri star) and HD 163296 (an intermediate-mass Herbig Ae star). Remarkable morphology differences in the images of these lines between the two systems suggest that the nature of the central star strongly affects the chemistry in disks. We will compare with detailed chemical models to investigate the influence of the gas temperature structure, grain growth, and stellar X-ray/FUV emission on the radial and vertical distribution of the molecular abundances.

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