Proceedings of the 131st Symposium of the International Astronomical Union, held in Mexico City, Mexico, October 5-9, 1987
I. Observational Data on Nebulae: Invited presentations.- Recent UV and Optical Observations of Planetary Nebulae.- Infrared Observations of Galactic Planetary Nebulae.- Radio Images of Planetary Nebulae.- New and Misclassified Planetary Nebulae.- Catalogues of Planetary Nebulae.- Contributed presentations.- Narrow Band Photometry and Mapping of the Planetary Nebulae NGC 6210 and NGC 7009.- New Observations of Planetary Nebulae S22 and YM29.- Two Southern Low Excitation Planetary Nebulae.- Spectroscopic Survey of Planetary Nebulae.- The Probable Low Excitation Planetary Nebula M3-44.- Optical and Infrared Observations of the Peculiar Planetary Nebula He2-442.- The Photometric (UBV) Study of the Planetary Nebula Variability in 1968 - 1987.- The Photometric and Spectral Variability of the Planetary Nebula IC 4997.- Planetary Nebula He 2-467 Turned out to be the Symbiotic Star with a Period about 500 Days..- Infrared Energy Distribution of Selected Planetary Nebulae.- Near Infrared Photometry of Compact Planetary Nebulae.- The Near Infrared Spectrum of NGC 7027.- A VLA Radio Continuum Survey of Planetary Nebulae.- A New Planetary Nebula.- Is NGC 2242 a New Planetary Nebula?.- Planetary Nebulae Near the Galactic Center I: Method of Discovery and Preliminary Results.- An Infrared Search for New Planetary Nebulae.- II. Nebular Properties: Invited papers.- Distances to Planetary Nebulae.- Galactic Distribution, Radial Velocities and Masses of PN.- The Shapes and Shaping of Planetary Nebulae.- Expansion Velocities and Characteristics of Galactic Planetary Nebulae.- Multiple Shell Planetary Nebulae.- Dust in Planetary Nebulae.- Molecules and Neutral Hydrogen in Planetary Nebulae.- Abundances in Planetary Nebulae.- Photoionization Models.- Contributed papers.- Planetary Nebulae and the Galactic Bulge.- Spectroscopic Distances to Central Stars of Planetary Nebulae.- Investigation of two Planetary Nebulae and their Angular Vicinity in Cygnus.- Structure and Morphology of NGC 6369.- H2 and H I Emission Line Imaging of the Ring Nebula NGC 6720.- Deep Narrow Band Interference Filter Photographs of Selected Extended Planetary Nebulae.- CCD Images of Selected Planetary Nebulae.- CCD Images of Soutern Hemisphere Planetary Nebulae.- IRAS Observations of Extended Planetary Nebulae.- Nebular Density Distributions; A Critical Look.- The Temperature Structure of NGC 7027.- The Display and Manipulation of PN Images on a IBM PC or Compatible.- Infrared Images and Line Profiles of Planetary Nebulae.- NGC 2899: An Evolved Bipolar Planetary Nebula.- The Structure and Kinematics of Bipolar Planetary Nebulae.- Collimated Outflows in Planetary Nebulae.- Kinematical Properties of Planetary Nebulae.- Kinematics of Abell 30.- High Resolution Long Slit Spectroscopy of A78.- The Structure and Velocity Field of A78.- Spatial Deconvolution of IRAS Observations of Planetaries.- Evidence of Expansion Velocity in the Central Region of NGC 2346.- Unusual Emission Line Profiles of M 1-1.- Emission Line Profiles in the Planetary Nebulae IC 4593 and NGC 6153.- A New Study of Some Galactic Planetary Nebulae.- Expansion Velocities of [N II] and [O III] from Compact Planetary Nebulae.- High and Low Resolution Spectra of Selected Planetary Nebulae.- The Planetary ESO 166 - PN21.- The Structure of NGC 2392.- High Velocity Outflows in Post-Main Sequence Nebulae.- Long-Slit 2-Dimensional Spectra of the Giant Halos Around NGC 6543 and NGC 6826.- The Halos of NGC 6543 and NGC 6826.- Expansion Velocities of Southern Planetary Nebulae.- Detection of an Extended Optical Halo around IC 418.- Internal Motions of Faint PN Halos.- Spectroscopic Investigations of Halos of Planetary Nebulae.- Kinematic Structure and Chemical Composition of the Double Shell PN NGC 3242.- Thermal Infrared Emission by Dust in the Planetary Nebula NGC 3918.- The Dust Content of Planetary Nebulae with Neutral Halos.- Spatially Resolved Observations of the Unidentified Dust Features in BD+30 3639.- Observations of CO and HCN (J=1-0) in NGC 2346 and NGC 7293 with the Nobeyama 45m Telescope.- A Young Planetary Nebula with OH Molecules: NGC 6302.- CO in the Bipolar Nebula NGC 2346.- Fluorescent H2 Emission in the Planetary Nebulae BD+30 3639 and Hb 12.- Molecular Hydrogen Emission from Cold Condensations in NGC 2440.- The Systematics and Distribution of Molecular Hydrogen in Planetary Nebulae.- Detection of OH Maser Emission at 1667 MHz from IC 4997.- OH Maser Emission from Young Planetary Nebulae.- Helium Abundances in Gaseous Nebulae.- Collisional Excitation of the 10830 He I Line and the Population of the 23S He I State in Gaseous Nebulae.- Planetary Nebulae and the Pregalactic Helium Abundance.- N/O Abundances in Planetary Nebulae from Far-Infrared Line Observations.- Investigations of DDDM-1; The Fourth Halo Planetary Nebula.- The Peculiar Planetary Nebula M1-78.- Oxygen Depletion Variations in Planetary Nebulae and Shells Ejected from Luminous Population I Stars.- Magnesium Abundances in Planetary Nebulae and Interstellar Absorption of Mg II ?2800 A.- Abundances of C, N and 0 in Planetary Nebulae.- Some Statistics of Nebular Chemical Compositions.- Electron Densities in Planetary Nebulae.- Low Resolution Spectroscopy of 13 Low Surface Brightness PN's.- Effect of Density Variations on Elemental Abundance Determinations in Gaseous Nebulae.- A Possible Subdivision of Type II Planetary Nebulae.- Observations and Models of the "Helix" Nebula NGC 7293.- A Photoionization Model Study of NGC 7027.- Emission Lines of C I and N II in Planetary Nebulae.- The Continuum Emission from Planetary Nebulae.- Comparison of Different Treatments of the Radiation Transfer in Model Calculations of Planetary Nebulae.- The Spatial Distribution of Line Ratio O III/O II in High Excitation Planetary Nebulae.- III. Central Stars: Invited papers.- Magnitudes, Spectra and Temperatures of Planetary Nuclei.- Wind Features and Wind Velocities.- Close-Binary and Pulsating Central Stars.- Binarity and Intrinsic Variability in Central Stars of PN.- Model Atmospheres and Quantitative Spectroscopy of Central Stars of Planetary Nebulae.- Mass Loss Rates in Central Stars of Planetary Nebulae.- Contributed papers.- The Central Star of NGC 7027.- Magnitude Measurements of Central Stars of Planetary Nebulae.- Stromgren Photometry of the Central Stars of Planetary Nebulae.- New Identifications of Faint Central Stars in Extended PN.- Einstein X-ray Observations of Planetary Nebulae and their Implications.- The Origin of the Zanstra Discrepancy: UV Excess in the Central Star Continuum?.- Are Zanstra Temperatures Always Real?.- Temperatures and Luminosities of Planetary Nebulae Nuclei.- Broad Baseline Flux Distributions of Planetary Nuclei.- Photometric and Spectroscopic Observations of Peculiar Nuclei of Planetary Nebulae.- HFG1: A Planetary Nebula with a Close-Binary Nucleus.- Nonradial Pulsational Analyses of the Pulsating Central Stars of Planetary Nebulae.- A Search for Cool Companions of Planetary Nebula Nuclei.- A Case Study of a WC Nucleus.- The Nature of the Hot Companion of the G8 IV Nucleus of Abell 35.- V605 Aquilae - The Most Extreme Hydrogen-Poor Object.- Echelle Spectra of a Large Sample of Planetary Nebula Nuclei.- The Metal-Line Spectra of Central Stars of Planetary Nebulae.- Revisited Mass-Loss Rates of Planetary Nebula Nuclei Observed with IUE.- Quantitative Investigations on Mass Outflow from Planetary Nebulae Nuclei.- IV. Extragalactic Nebulae: Invited papers.- Planetary Nebulae in the Magellanic Clouds.- Planetary Nebulae in Galaxies Beyond the Local Group.- Contributed papers.- A Survey of Planetary Nebulae in the SMC and M31.- The Kinematics of the Planetary Nebulae in the Large Magellanic Cloud.- N 66: A High Excitation N Rich Planetary Nebula in the LMC.- Chemical Abundances in Magellanic Cloud Planetary Nebulae.- Central Star and Nebular Masses for Magellanic Cloud Planetary Nebulae..- Evolution of Magellanic Cloud Planetary Nebulae.- Planetary Nebulae as Standard Candles for Extragalactic Distances.- V. Origin of Planetaries: Invited papers.- OH/IR Stars and other IRAS Point Sources and Progenitors of Planetary Nebulae.- Carbon Stars as Planetary Nebula Progenitors.- Thermal Pulses and the Formation of Planetary Nebula Shells.- Progenitors of Planetary Nebulae.- Models of Planetary Nebulae: Generalisation of the Multiple Winds Model.- Stellar Evolution and the Planetary Nebulae Formation Rate.- Contributed papers.- The Proto-Planetary Nebula Vy 2-2.- The Optically Resolved Planetary Nebula/OH Maser Vy 2-2.- New IR-Observations of Post AGB Stars and Proto-Planetary Nebulae.- IRAS 17516-2525: The Birth of a Planetary Nebula?.- The Shocking Truth About some "Proto-PN".- New OH/IR Stars: Proto-Planetary Nebulae?.- Infrared Photometry of OH/IR Stars.- The Presence of Water Masers in Color Selected IRAS Sources.- Some Dependences for Long-Period Variables and a Possible Scheme of their Evolution..- Proto-Planetary Nebulae: Models and IRAS Observations.- HCN The First Strong Maser in Carbon-Rich Stars.- Lower Limit for NPN's Masses.- Some Hypothesized Observational Aspects of Magnetic Fields in Protoplanetary Nebulae.- Stalled Winds: Interactions Between Nebulae and Stellar Winds.- Optically Thick Wind from Post-AGB Stars and Formation of Planetary Nebulae.- Direct Evidence for a Bipolar Stellar Wind in NGC 2392.- Two-Dimensional Hydrodynamical Models of Planetary Nebulae (PNe).- The Spatial Structure of Planetary Nebulae with Binary Central Stars.- Morphologies of Planetary Nebulae with Close-Binary Nuclei.- CCD Images of Three Planetary Nebulae with Binary Nuclei.- VI. Evolution: Invited papers.- Evolutionary Tracks for Central Stars of Planetary Nebulae.- The Distribution of Planetary Nebula Nuclei in the log L - log T Plane: Inferences from Theory.- The Position of the Central Stars of PN on the HR Diagram.- Initial Masses.- Binary Stars and Planetary Nebulae.- The Evolution of the Common Planetary Nebula.- Planetary Nebulae with Massive Central Stars.- Contributed papers.- A New Method for Observational Testing of the Planetary Nebulae Nuclei Evolution.- Mass Distribution and Birth Rate of Central Stars of Planetary Nebulae: Comparison with White Dwarfs, and Influence of Selection Effects.- Common Envelope Evolutions of Binary System and Formation of Planetary Nebulae.- Theoretical Models for the Evolution of Planetary Nebulae Nuclei Tested by Observations.- Snapshots of Evolving Model Planetary Nebulae.- Evolution of Planetary Nebulae: A comparison with Observed Central Stars.- VII. Planetaries and White Dwarfs: Invited papers.- White Dwarfs and Planetary Central Stars.- Properties and Evolution of White Dwarf Stars.- VIII. Summaries And a View to the Future: Invited papers.- Summarizing Remarks on the Structure and Evolution of Planetary Nebulae and Properties of their Central Stars.- Comments on the Applications of Planetary Nebulae Research.- Author index.- Object Index.
Series: International Astronomical Union Symposia
Number Of Pages: 628
Published: December 1988
Country of Publication: NL
Dimensions (cm): 23.39 x 15.6
Weight (kg): 0.87