Observational diagnostics of gas in protoplanetary disks

Details Observational diagnostics of gas in protoplanetary disks Observational diagnostics of gas in protoplanetary disks

2009-11-11

arxiv.org/abs/0911.2271v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Review written for the proceedings of the conference "Origin and Evolution of Planets 2008", Ascona, Switzerland, June 29 - Ju

Scientific paper

Protoplanetary disks are composed primarily of gas (99% of the mass). Nevertheless, relatively few observational constraints exist for the gas in disks. In this review, I discuss several observational diagnostics in the UV, optical, near-IR, mid-IR, and (sub)-mm wavelengths that have been employed to study the gas in the disks of young stellar objects. I concentrate in diagnostics that probe the inner 20 AU of the disk, the region where planets are expected to form. I discuss the potential and limitations of each gas tracer and present prospects for future research.

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