Bibcode
López-Martín, L.; Gonçalves, D. R.; Corradi, R. L. M.; Mampaso, A.
Bibliographical reference
Asymmetrical Planetary Nebulae III: Winds, Structure and the Thunderbird, Proceedings of the conference held 28 July - 1 August 2003 at Mt. Rainer, Washington, USA. Edited by Margaret Meixner, Joel H. Kastner, Bruce Balick and Noam Soker. ASP Conference Proceedings, Vol. 313. San Francisco: Astronomical Society of the Pacific, 2004., p.468
Advertised on:
7
2004
Citations
0
Refereed citations
0
Description
We present observations and 3D gasdynamic simulations of the jet and
knots of the K 4-47 planetary nebula (PN) with the purpose of comparing
the observed and predicted physical parameters. From the observations
we obtain physical properties of different regions of the K 4-47 PN. We
conclude that knots (K1 and K2) are produced by shocks while the
central shell is mainly photoionized by the radiation field of the
central star. From the models, we obtain predictions of densities of the
knots wich qualitatively reproduce their observed physical properties.
The model bullet ejection seems to reproduce best the observed knots,
but we can not eliminate the posibility of an ejected jet at similar
velocities.