J320 (PN G190.3-17.7) as a poly-polar planetary nebula surrounded by point-symmetric knots

D. J. Harman; M. Bryce; J. A. López; J. Meaburn; A. J. Holloway

doi:10.1111/j.1365-2966.2004.07427.x

J320 (PN G190.3-17.7) as a poly-polar planetary nebula surrounded by point-symmetric knots

D. J. Harman
, M. Bryce
, J. A. López
, J. Meaburn
, A. J. Holloway

Research output: Contribution to journal › Article › peer-review

Abstract

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−1 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.

Original language	English
Pages (from-to)	1047–1054
Number of pages	8
Journal	Monthly Notices of the Royal Astronomical Society
Volume	348
Issue number	3
DOIs	https://doi.org/10.1111/j.1365-2966.2004.07427.x
Publication status	Published - 1 Mar 2004

Keywords

ISM: kinematics and dynamics
planetary nebulae: individual: J320
planetary nebulae: individual: PN G190.3−17.7

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10.1111/j.1365-2966.2004.07427.x

Cite this

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title = "J320 (PN G190.3-17.7) as a poly-polar planetary nebula surrounded by point-symmetric knots",

abstract = "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−1 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.",

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year = "2004",

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doi = "10.1111/j.1365-2966.2004.07427.x",

language = "English",

volume = "348",

pages = "1047–1054",

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TY - JOUR

T1 - J320 (PN G190.3-17.7) as a poly-polar planetary nebula surrounded by point-symmetric knots

AU - Harman, D. J.

AU - Bryce, M.

AU - López, J. A.

AU - Meaburn, J.

AU - Holloway, A. J.

PY - 2004/3/1

Y1 - 2004/3/1

N2 - 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−1 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.

AB - 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−1 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.

KW - ISM: kinematics and dynamics

KW - planetary nebulae: individual: J320

KW - planetary nebulae: individual: PN G190.3−17.7

U2 - 10.1111/j.1365-2966.2004.07427.x

DO - 10.1111/j.1365-2966.2004.07427.x

M3 - Article

SN - 1365-2966

VL - 348

SP - 1047

EP - 1054

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

J320 (PN G190.3-17.7) as a poly-polar planetary nebula surrounded by point-symmetric knots

Abstract

Keywords

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