Post-AGB Objects as a Phase of Stellar Evolution

1. Front Matter

   Pages i-xxi

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2. Introductory Review

   1. Front Matter

      Pages 1-1

      PDF

   2. Proto-Planetary Nebulae as a Phase of Stellar Evolution

      • Sun Kwok

      Pages 3-10

3. Surveys and Observational Data

   1. Front Matter

      Pages 11-11

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   2. Observational Database and Statistical Properties of Proto-Planetary Nebulae

      • R. Szczerba, S. K. Górny, M. Zalfresso-Jundziłło

      Pages 13-20

   3. Optical Survey of Post-AGB Candidates

      • Arturo Manchado, Olga Suárez, Pedro García-Lario, Minia Manteiga, Stuart R. Pottasch

      Pages 21-27

   4. Hot Post-AGB Stars

      • M. Parthasarathy, G. Gauba, T. Fujii, Y. Nakada

      Pages 29-40

   5. Properties of Post-AGB Stars with Iras Colors Typical of Planetary Nebulae

      • Griet C. Van de Steene, Peter A. M. van Hoof, Peter R. Wood

      Pages 41-44

   6. BVRIJHK Photometry of Post-AGB Candidates

      • Takahiro Fujii, Yoshikazu Nakada, M. Parthasarathy

      Pages 45-48

   7. Near IR Observations of the Arecibo Sample of OH/IR Stars

      • F. Jiménez-Esteban, D. Engels, P. García-Lario

      Pages 49-52

   8. HST Imaging of Proto-Planetary Nebulae and Very Young Planetary Nebulae-Towards a New Understanding of Their Formation

      • Raghvendra Sahai

      Pages 53-63

   9. Morphological Properties of PPNS: Mid-IR and HST Imaging Surveys

      • Toshiya Ueta, Margaret Meixner

      Pages 65-70

   10. MSX Sources in the LMC

       • P. R. Wood, M. Cohen

       Pages 71-76

   11. Post-AGB Stars in Globular Clusters and Galactic Halos

       • Howard E. Bond, David R. Alves

       Pages 77-82

4. Stellar Evolution and Winds

   1. Front Matter

      Pages 83-83

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   2. The Evolution of AGB Stars Towards Planetary Nebulae

      • Detlef Schönberner, Matthias Steffen

      Pages 85-92

   3. Mass Loss Characteristics of Dust Forming Long-Period Variable Stars

      • Jan Martin Winters, Thibaut Le Bertre

      Pages 93-100

   4. Pulsations in Proto-Planetary Nebulae as Seen from Light Curve Studies

      • Bruce J. Hrivnak

      Pages 101-104

   5. Atmospheric Dynamics of Post-AGB Stars: New Results on the Nature of the Pulsation of HD 56126

      • A. Lèbre, A. Fokin, D. Barthès, D. Gillet, N. Mauron

      Pages 105-110

   6. Light Variability of Color Selected IRAS Sources

      • Takahiro Fujii, Yoshikazu Nakada, M. Parthasarathy

      Pages 111-114

The term proto-planetary nebulae (PPNe) in the context of the late stages of stellar evolution was created only slightly more than 20 years ago to express the belief that in the near future these objects will become planetary nebulae (PNe). The first proto-planetary nebulae (called also post-Asymptotic Giant Branch, or shortly post-AGB objects) AFGL 2688 and AFGL 618 were discovered in mid­ seventies in course of the Air Force Sky Survey. Investigation of this phase of stellar evolution developed very rapidly in 1980's after the IRAS mission when it became clear that proto-planetary nebulae emit a significant part of their energy in the mid-and far-infrared. Hundreds of new candidates have been proposed but the recognition of the real proto-planetary nebulae is not a simple task and needs a substantial effort to exclude cases that represent different evolutionary stages. High resolution spectroscopy of stellar atmospheres is of much importance in this respect. Surprisingly, only a small group of central stars, the so called 21 11m emitters, show chemical signatures of the 3 rd dredge­ up process. Very recently, a more detailed studies of mid-infrared spectra from the Infrared Space Observatory (ISO) allow for a better understanding of chemical composition and evolution of circumstellar material around these stars. A new impetus in the field of proto-planetary nebulae research was started in the 1990's with high spatial resolution imaging in mid-infrared and optical wavelength ranges.

• photometry
• planet
• smoothed-particle hydrodynamics (SPH)
• spectroscopy
• stars
• stellar
• stellar evolution

• Nicolaus Copernicus Astronomical Center, Toruń, Poland

  Ryszard Szczerba, Sławomir K. Górny

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