SIMBAD references

2020AJ....160...39U - Astron. J., 160, 39-39 (2020/July-0)

Spatially resolved velocity structures in jets of DF Tau and UY Aur A.


Abstract (from CDS):

Young stars accrete mass and angular momentum from their circumstellar disks. Some of them also drive outflows, which can be distinguished in optical forbidden emission lines. We analyze a sample of binary T Tauri stars observed with long-slit spectroscopy by the Hubble Space Telescope between 1998 and 2000, searching for spatially resolved outflows. We detect resolved [O I] emission in 2 cases out of 21. In DF Tau we resolve high- and medium-velocity outflows in a jet and counterjet out to 60 au. The outflows are accelerated within the inner 12 au and retain a constant speed thereafter. In UY Aur, we detect a blue- and a redshifted outflow from UY Aur A, as well as a blueshifted jet from UY Aur B. All of these features have been seen in [Fe II] with data taken 10 years apart indicating that the underlying outflow pattern is stable on these timescales.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Circumstellar gas - Stellar jets - Classical T Tauri stars - Star formation

Simbad objects: 25

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