Other
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.8301c&link_type=abstract
American Astronomical Society Meeting 210, #83.01; Bulletin of the American Astronomical Society, Vol. 39, p.192
Other
Scientific paper
High resolution spectra of protostellar jets obtained by the Hubble Space Telescope (HST) during the past few years, especially those near the jet base, have made it possible for a direct comparison with jet simulation results. Using Zeus-MP code, we extend our three-dimensional time-dependent calculations of such jets launched from the surface of Keplerian accretion disks to physical scales that are probed by the HST observations. We produce velocity channel maps and other diagnostics of our jet simulations that can be directly compared with the observations. In particular, the observations of jet rotation and velocity structure on these larger scales (50 AU) can be used to constrain the physics of the disk wind at its source, including information about the magnetic field configuration on the disk as well as the mass loading of the jet by the underlying accretion disk. Our approach will ultimately allow the observations to put strong constraints on the nature of the central engine. This work is supported by a grant from NSERC. K.C. acknowledges support from a CITA National Fellowship.
Cai Kai
Niebergal B. P.
Ouyed Rachid
Pudritz Ralph E.
Staff Jan E.
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