Astron. Astrophys. 357, 1031-1034 (2000)

4. Conclusions

Narrow band CCD images towards the PN M 2-48 were obtained, which reveal a pair of symmetric bow-shocks separated by and probably related to a bipolar jet ejection. The bow-shocks exhibit the ionization structure expected if they trace the working surface of highly collimated jets. An apparent off-center semi-circular shell (size ) is also detected surrounding the internal bipolar shell of the object. There is an enhancement of low-excitation emissions in this structure along the major nebular axis. This result can be interpreted in terms of a jet-shell interaction.

© European Southern Observatory (ESO) 2000

Online publication: June 5, 2000
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