"Spectro-Astrometry of Water in Dr Tauri" by Logan Brown, Matthew Troutman et al.
 

Document Type

Article

Abstract

We present high-resolution, near-infrared spectro-astrometric (SA) data for the T Tauri star DR Tau using NIRSPEC at the Keck II telescope. Spectro-astrometry obtains sub-seeing spatial information from emission lines originating in a non-point source object, such as a circumstellar disk. We report the first detection of water SA signatures in a protoplanetary disk. Three water features near 3 μm were averaged together to produce the total signal analyzed. Using a disk model, we constrained the position angle of the disk (~140°), the inclination of the disk (~13°), and the emitting region of the emission lines (~0.056-0.38 AU).

Publication Date

May 2013

Publication Title

The Astrophysical Journal Letters

Volume

770

Issue

1

First Page

L14

Last Page

L17

DOI

10.1088/2041-8205/770/1/L14

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