Organic Molecules and Water in the Planet Formation Region of Young Circumstellar Disks-Reference-Cited by-同舟云学术

Organic Molecules and Water in the Planet Formation Region of Young Circumstellar Disks

Published:2008-03-14 Issue:5869 Volume:319 Page:1504-1506
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Carr John S.¹²,Najita Joan R.¹²

Affiliation:

1. Remote Sensing Division, Naval Research Laboratory, Code 7210, Washington, DC 20375, USA.

2. National Optical Astronomy Observatory, Tucson, AZ85719, USA.

Abstract

The chemical composition of protoplanetary disks is expected to hold clues to the physical and chemical processes that influence the formation of planetary systems. However, characterizing the gas composition in the planet formation region of disks has been a challenge to date. We report here that the protoplanetary disk within 3 astronomical units of AA Tauri possesses a rich molecular emission spectrum in the mid-infrared, indicating a high abundance of simple organic molecules (HCN, C 2 H 2 , and CO 2 ), water vapor, and OH. These results suggest that water is abundant throughout the inner disk and that the disk supports an active organic chemistry.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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