New Observations of the High-Velocity Outflows of the Proto-Planetary Nebula Hen 3-1475

Bibcode
2002RMxAC..13..127R
Riera, A.; García-Lario, P.; Manchado, A.; Bobrowsky, M.; Estalella, R.
Bibliographical reference

Emission Lines from Jet Flows, Isla Mujeres, Q.R., México, November 13-17, 2000 (Eds. W. J. Henney, W. Steffen, A. C. Raga, and L. Binette) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 13, pp. 127-132 (2002) (http://www.astroscu.unam.mx/~rmaa/)

Advertised on:
6
2002
Number of authors
5
IAC number of authors
1
Citations
2
Refereed citations
2
Description
The proto-planetary nebula Hen 3-1475 shows a remarkable highly collimated optical jet with a S-shaped string of shock-excited knots. Moreover, extremely high velocities have been observed in the innermost regions of its jet. We present a detailed analysis of the kinematic structure, and the excitation conditions in the shock-excited knots based on ground-based high dispersion spectroscopy and high angular resolution images obtained with the HST WFPC2. We discuss the similarities between the jet of Hen 3-1475 and the HH jets. Both exhibit double-peaked and extremely wide profiles, a decrease of the radial velocities with distance to the source in a step-like fashion, and high tangential velocities. The overall picture of Hen 3-1475 supports the description of the system as the result of time-dependent ejection velocity variability.
Type
Non-refereed
Planetary nebulae

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