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 (CUP)
    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
    Country/TerritorySpain
    CityPerto de la Cruz
    Period25/07/1129/07/11

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