2004MNRAS.348.1047H

Query : 2004MNRAS.348.1047H

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):

Spatially resolved, long-slit spectra obtained with the Manchester echelle spectrometer of the planetary nebula J320 have been compared with Hubble Space Telescope and ground-based images. The morphology and kinematics of the nebular core have been convincingly modelled using the Xshape code.

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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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 Jonckheere 320 PN 05 05 34.2777790632 +10 42 22.924778148           O3V(f) 289 0
2 NGC 2440 PN 07 41 55.34603 -18 12 30.4117   11.469 10.104     ~ 665 2
3 IC 4634 PN 17 01 33.5816774904 -21 49 33.015515916   12.3 11.3     O3If 286 0
4 NGC 6302 PN 17 13 44.5 -37 06 11           O-rich 821 2
5 OH 017.7-02.0 pA* 18 30 30.703 -14 28 57.04           O-rich 145 1

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