Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap%26ss.292..553c&link_type=abstract
Astrophysics and Space Science, v. 292, Issue 1, p. 553-558 (2004).
Astronomy and Astrophysics
Astrophysics
3
T Tauri Stars, Yso Jets, Rotation, Rw Aur, Th28, Lkhα321
Scientific paper
Whether jets from newly forming stars rotate is a fundamental question in star formation research. Theoretical models propose jet rotation as a means of removing angular momentum from the young star and disk system, thus allowing accretion. While widely accepted, this idea has not yet been tested observationally due to the high resolution requirement of examining jets close to their launching point. Previous findings from the Hubble Space Telescope Imaging Spectrograph (HST/STIS) and Owens Valley Radio Observatory (OVRO) give indications of same rotation of the jet and disk respectively, of T Tauri star DG Tau. We report preliminary findings from STIS data for 3 of 8 sources in a current survey to establish conclusively whether protostellar jets rotate. The results were positive, yielding evidence of radial velocity differences about the axis at the base of all three jets of 10 25 km s-1.
Bacciotti Francesca
Coffey Dane
Eislöffel Jochen
Ray Thomas P.
Woitas Jens
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