The chemistry of disks around T Tauri and Herbig Ae/Be stars.

ABSTRACT:

Context

Infrared and (sub-)mm observations of disks around T Tauri and Herbig Ae/Be stars point to a chemical differentiation between both types of disks, with a lower detection rate of molecules in disks around hotter stars.

Aims

To investigate the underlying causes of the chemical differentiation indicated by observations we perform a comparative study of the chemistry of T Tauri and Herbig Ae/Be disks. This is one of the first studies to compare chemistry in the outer regions of these two types of disks.

Methods

We developed a model to compute the chemical composition of a generic protoplanetary disk, with particular attention to the photochemistry, and applied it to a T Tauri and a Herbig Ae/Be disk. We compiled cross sections and computed photodissociation and ph

SUBMITTER: Agundez M 

PROVIDER: S-EPMC6120683 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature