Observing compact disks inside pre-PNe with the VLTI

Stacey N. Bright*, Orsola De Marco, Olivier Chesneau, Eric Lagadec, Hans Van Winckel, Bruce J. Hrivnak

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

AGB stars appear to lose mass spherically, but many PNe resulting from the AGB mass-loss have non-spherical morphologies. Compact disks have been found in some bipolar PNe, but their role in the shaping process remains unknown. Compact Keplerian disks are found to be common around post-AGB binaries, however, these objects may never develop into PNe. Another group of post-AGB stars, known as pre-PNe, are surrounded by collimated nebulae shining by reflected light or shock ionisation. We are observing the inner circumstellar regions of pre-PNe at high angular resolutions with the VLTI. We seek to compare pre-PNe disks to those around other post-AGB stars and PNe. New observations of the pre-PN, IRAS 16279-4757, show evidence for a disk similar to those seen in young PNe.

Original languageEnglish
Title of host publicationPlanetary nebulae
Subtitle of host publicationan eye to the future
EditorsArturo Manchado, Letizia Stanghellini, Detlef Schönberner
Place of PublicationCambridge
PublisherCambridge University Press
Pages115-118
Number of pages4
ISBN (Print)9781107019836
DOIs
Publication statusPublished - Jul 2011
Event283rd Symposium of the International Astronomical Union - Perto de la Cruz, Spain
Duration: 25 Jul 201129 Jul 2011

Publication series

NameProceedings of the International Astronomical Union
NumberS283
Volume7
ISSN (Print)17439213
ISSN (Electronic)17439221

Conference

Conference283rd Symposium of the International Astronomical Union
CountrySpain
CityPerto de la Cruz
Period25/07/1129/07/11

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  • Cite this

    Bright, S. N., De Marco, O., Chesneau, O., Lagadec, E., Van Winckel, H., & Hrivnak, B. J. (2011). Observing compact disks inside pre-PNe with the VLTI. In A. Manchado, L. Stanghellini, & D. Schönberner (Eds.), Planetary nebulae: an eye to the future (pp. 115-118). (Proceedings of the International Astronomical Union; Vol. 7, No. S283). Cambridge: Cambridge University Press. https://doi.org/10.1017/S1743921312010800