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Newly discovered halos and outer features around southern planetary nebulae

Published online by Cambridge University Press:  30 August 2012

David J. Frew
Affiliation:
Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia Macquarie University Research Centre in Astronomy, Astrophysics & Astrophotonics
Ivan S. Bojičić
Affiliation:
Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia Macquarie University Research Centre in Astronomy, Astrophysics & Astrophotonics Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia email: [email protected]
Quentin A. Parker
Affiliation:
Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia Macquarie University Research Centre in Astronomy, Astrophysics & Astrophotonics Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia email: [email protected]
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Abstract

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We have used the SuperCOSMOS Hα Survey to look for faint outer structures such as halos, ansae and jets around known planetary nebulae across 4000 square degrees of the southern Milky Way. Our search will contribute to a more accurate census of these features in the Galactic PN population. Candidate common-envelope PNe have also been identified on the basis of their microstructures. We also intend to determine more reliable distances for these PNe, which should allow a much better statistical basis for the post-AGB total mass budget. Our survey offers fresh scope to address this important issue.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2012

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