Hubble Space Telescope Images of the Subarcsecond Jet in DG Tau

Details Hubble Space Telescope Images of the Subarcsecond Jet in DG Tau Hubble Space Telescope Images of the Subarcsecond Jet in DG Tau

1993-07-17

arxiv.org/abs/astro-ph/9307028v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures included. All in postscript, please read instructions at the beginning of the file. Accepted by the Ap.J. L

Scientific paper

10.1086/187047

We have applied a new restoration technique to archival [O~I], H$\alpha$, and continuum HST images of DG~Tau. The restored [O~I] and H$\alpha$ images show that DG~Tau has a jet with a projected length of 25~AU and width $\leq$10~AU, and is already collimated at a projected distance of $\sim$~40~AU (0\farcs25) from the star. Such a narrow width and short collimation distance for a stellar jet places important constraints on theoretical models of jet formation.

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