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2004MNRAS.348.1047H - Mon. Not. R. Astron. Soc., 348, 1047-1054 (2004/March-1)
J320 (PN G190.3-17.7) as a poly-polar planetary nebula surrounded by point-symmetric knots.
HARMAN D.J., BRYCE M., LOPEZ J.A., MEABURN J. and HOLLOWAY A.J.
Abstract (from CDS):
Two and possibly three bipolar lobes, expanding at ~ 46 km/s but with different axial orientations, have been found to constitute the bright central nebula. These are found to be surrounded by two sets of point-symmetric, high-speed knots reminiscent of those that could be generated by a bipolar, rotating, episodic jet. Another isolated knot exists but without a counterpart.
The sequence and nature of the periodic ejections that have given rise to this complex structure are considered in view of the most recent theories of the shaping and evolution of planetary nebulae.
Abstract Copyright: 2004 RAS
Journal keyword(s): ISM: kinematics and dynamics - planetary nebulae: individual: J320 - planetary nebulae: individual: PN G190.3-17.7
Nomenclature: Fig.2, Table 2: [HBL2004] KNw (Nos K1-K3, K1s, K1n, K2s, K2n, K3w).
Simbad objects: 5
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