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High Resolution CO Imaging of the Molecular Disk around the jets in KjPN 8

Thierry Forveille·Patrick J. Huggins·Rafael Bachiller·Pierre Cox
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Abstract

We report high resolution (2.5 arcsec) CO J=1-0 line imaging which confirms the presence of a molecular disk around the origin of the spectacular, 14 arcmin times 4 arcmin, episodic jets in the planetary nebula KjPn 8. The disk is 30 arcsec in diameter with an expansion velocity of approximately 7 km/s. The axis of the disk is aligned with the youngest and fastest (approximately 300 km/s) of the bipolar jets, and there is evidence for interaction between the jets and the disk material. The inner 4 arcsec of the disk are photo-ionized by the central star. The disk-jet system dominates the environment of this young nebula, and should govern the morphology of KjPn 8 as it evolves to become fully ionized.

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Thierry Forveille, Patrick J. Huggins, Rafael Bachiller, Pierre Cox. 1998-01-11. High Resolution CO Imaging of the Molecular Disk around the jets in KjPN 8. https://doi.org/10.1086/311229

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