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ASYMMETRIC PLANETARY NEBULAE III

ASYMMETRIC PLANETARY NEBULAE III. Mt. Rainier National Park 28 July - 1 August 2003. Evidence of Bipolar Structures in Precursors of PNe. Dejan Vinkovi ć University of Kentucky (IAS, Princeton). M. Elitzur (University of Kentucky) G. Weigelt, K-H Hofmann (MPIfR, Bonn).

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ASYMMETRIC PLANETARY NEBULAE III

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  1. ASYMMETRIC PLANETARY NEBULAE III Mt. Rainier National Park 28 July - 1 August 2003 Evidence of Bipolar Structures in Precursors of PNe Dejan Vinković University of Kentucky (IAS, Princeton) M. Elitzur (University of Kentucky) G. Weigelt, K-H Hofmann (MPIfR, Bonn)

  2. Evidence for bipolar jets in late stages of AGB winds AGB winds spherical (?) recall the talk by Sahai PPNs asymmetric  PNs asymmetric 

  3. Evidence for bipolar jets in late stages of AGB winds ? ?

  4. IRC+10011 (CIT3) – the prototype OH/IR star Hofmann et al ‘01  = 1.24 m  = 1.65 m  = 2.12 m Vinković et al ‘03

  5. IRC+10011 (CIT3)

  6. IRC+10011 (CIT3) – bipolarity inside • Spherical on large scales • Asymmetry at ~ 100 AU • Density contrast of 100 – ram pressure! • Driving mechanism very close to the star High-velocity young jet ?

  7. IRC+10216 – the prototype C-star HCN J = 1 – 0 Dayal & Bieging ‘95

  8. IRC+10216 – K-band Weigelt et al. ‘02

  9. IRC+10216 – the bipolarity inside • Spherical at ~ 4,000 AU (molecules; Lindqvist et al ‘00) • Asymmetric at ~ 60 AU (K-band; Men'shchikov et al ’02) • ~ 10-5 Myr-1 3·10-4 Myr-1about 50 years ago talk by Fong: signature of bipolarity in molecular shells in the outer envelope?

  10. Scheuer 1974 Late phases of high develop bipolarity

  11. Jet evolution? ? IRC+10011 IRC+10216 V Hydrae: talk by Sahai

  12. IRC+30219 (CIT6) Schmidt et al. ApJ (2002)

  13. IRC+30219 (CIT6) Schmidt et al. ApJ (2002)

  14. IRC+30219 (CIT6) the bipolarity outside • Asymmetric at > 1,000 AU • A few hundred years old • The next phase of IRC+10216?

  15. W43A – the Jets are Out! upcoming talk by Claussen! talk by Aryal(?): large bipolar lobes interacting with the ISM and probably started already in the AGB phase talk by Schoenberner: asymmetry in NGC6826 started already in the end of AGB phase Imai et al ‘02

  16. post-AGB jets are out (and evolving) Hen 3-1475: talk & poster by A.Riera multiple outflows: talk by Sahai rotational disks: talk by Jura CO asymmetry: talk by Meixner bipolar in molecules: talk by Castro-Carrizo

  17. …and also in PN K3-35 jet masers: talk by Miranda ... and many other presentations Miranda et al ‘01

  18. > 1000 AU < 100 AU < 100 AU > 1000 AU ~ ~ ~ ~ jet evolution IRC+10011 J image IRC+10216 J & K image IRC+30219 large bipolarity W43A jet (masers)

  19. Conclusions • AGB wind phase ends with jets • Questions: - how prevalent? • time scales? • driving mechanism? • controlling parameters? + upcoming talks!

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