Planetary Nebulae: Proceedings of the 131st Symposium of the International Astronomical Union, Held in Mexico City, Mexico, October 5–9, 1987

Front Matter....Pages i-xx
Recent UV and Optical Observations of Planetary Nebulae....Pages 1-8
Infrared Observations of Galactic Planetary Nebulae....Pages 9-16
Radio Images of Planetary Nebulae....Pages 17-28
New and Misclassified Planetary Nebulae....Pages 29-37
Catalogues of Planetary Nebulae....Pages 39-48
Narrow Band Photometry and Mapping of the Planetary Nebulae NGC 6210 and NGC 7009....Pages 49-49
New Observations of Planetary Nebulae S22 and YM29....Pages 50-50
Two Southern Low Excitation Planetary Nebulae....Pages 51-51
Spectroscopic Survey of Planetary Nebulae....Pages 52-52
The Probable Low Excitation Planetary Nebula M3-44....Pages 53-53
Optical and Infrared Observations of the Peculiar Planetary Nebula HE2-442....Pages 54-54
The Photometric (UBV) Study of the Planetary Nebulae Variability in 1968–1987....Pages 55-55
The Photometric and Spectral Variability of the Planetary Nebula IC 4997....Pages 56-56
Planetary Nebula He 2–467 Turned out to be the Symbiotic Star with a Period about 500 Days....Pages 57-57
Infrared Energy Distribution of Selected Planetary Nebulae....Pages 57-57
Near Infrared Photometry of Compact Planetary Nebulae....Pages 58-58
The Near Infrared Spectrum of NGC7027....Pages 59-59
A VLA Radio Continuum Survey of Planetary Nebulae....Pages 60-60
A New Planetary Nebula....Pages 61-61
Is NGC 22142 a New Planetary Nebula?....Pages 62-62
Planetary Nebulae Near the Galactic Center I: Method of Discovery and Preliminary Results....Pages 63-63
An Infrared Search for New Planetary Nebulae....Pages 63-64
Distances to Planetary Nebulae....Pages 65-72
Galactic Distribution, Radial Velocities and Masses of PN....Pages 73-82
The Shapes and Shaping of Planetary Nebulae....Pages 83-92
Expansion Velocities and Characteristics of Galactic Planetary Nebulae....Pages 93-104
Multiple Shell Planetary Nebulae....Pages 105-116
Dust in Planetary Nebulae....Pages 117-128
Molecules and Neutral Hydrogen in Planetary Nebulae....Pages 129-138
Abundances in Planetary Nebulae....Pages 139-156
Photoionization Models....Pages 157-166
Planetary Nebulae and the Galactic Bulge....Pages 167-167
Spectroscopic Distances to Central Stars of Planetary Nebulae....Pages 168-168
Investigation of Two Planetary Nebulae and Their Angular Vicinity in Cygnus....Pages 168-168
Structure and Morphology of NGC6369....Pages 169-169
H 2 and H I Emission Line Imaging of the Ring Nebula NGC 6720....Pages 170-170
Deep Narrow Band Interference Filter Photographs of Selected Extended Planetary Nebulae....Pages 171-171
CCD Images of Selected Planetary Nebulae....Pages 172-172
CCD Images of Southern Hemisphere Planetary Nebulae....Pages 173-173
IRAS observations of extended planetary nebulae....Pages 174-174
Nebular Density Distributions; A Critical Look....Pages 175-175
The Temperature Structure of NGC 7027....Pages 176-176
The Display and Manipulation of PN images on an IBM PC or Compatible....Pages 177-177
Infrared Images and Line Profiles of Planetary Nebulae....Pages 178-178
NGC 2899: An Evolved Bipolar Planetary Nebula....Pages 179-179
The Structure and Kinematics of Bipolar Planetary Nebulae....Pages 180-180
Collimated Outflows in Planetary Nebulae....Pages 181-181
Kinematical Properties of Planetary Nebulae....Pages 182-182
Kinematics of Abell 30....Pages 183-183
High Resolution Long-Slit Spectroscopy of A78....Pages 184-184
The Structure and Velocity Field of A78....Pages 185-185
Spatial Deconvolution of IRAS Observations of Planetaries....Pages 186-186
Evidence of Expansion in the Central Region of NGC 2346....Pages 187-187
Unusual Emission Line Profiles of M1-1....Pages 188-188
Emission Line Profiles in the Planetary Nebulae IC 4593 and NGC 6153....Pages 189-189
A New Study of Some Galactic Planetary Nebulae....Pages 189-189
Expansion Velocities of [NII] and [OIII] from Compact Planetary Nebulae....Pages 190-190
High and Low Resolution Spectra of Selected Planetary Nebulae....Pages 191-191
The Planetary ESO 166 — PN21....Pages 192-192
The Structure of NGC 2392....Pages 193-193
High Velocity Outflows in Post-Main Sequence Nebulae....Pages 194-194
Long-Slit 2-Dimensional Spectra of the Giant Halos around NGC 6543 and NGC 6826.....Pages 195-195
The Halos of NGC 6543 and NGC 6826....Pages 196-196
Expansion Velocities of Southern Planetary Nebulae....Pages 196-196
Detection of an Extended Optical Halo around IC 418....Pages 197-197
Internal Motions of Faint PN Halos....Pages 198-198
Spectroscopic Investigations of Halos of Planetary Nebulae....Pages 199-199
Kinematic Structure and Chemical Composition of the Double Shell PN NGC 3242....Pages 200-200
Thermal Infrared Emission by Dust in the Planetary Nebula NGC 3918....Pages 201-201
The Dust Content of Planetary Nebulae with Neutral Halos....Pages 202-202
Spatially Resolved Observations of the Unidentified Dust Features in BD +30°3639....Pages 203-203
Observations of CO and HCN (J = 1-0) in NGC 2346 and NGC 7293 with the Nobeyama 45-m Telescope....Pages 204-204
A Young Planetary Nebula with OH Molecules: NGC 6302....Pages 205-205
CO in the Bipolar Nebula NGC 2346....Pages 205-205
Fluorescent H 2 Emission in the Planetary Nebulae BD+30 3639 and HB 12....Pages 206-206
Molecular Hydrogen Emission from Cold Condensations in NGC 2440....Pages 207-207
The Systematics and Distribution of Molecular Hydrogen in Planetary Nebulae.....Pages 208-208
Detection of OH Maser Emission at 1667 MHZ from IC 4997....Pages 209-209
OH Maser Emission from Young Planetary Nebulae....Pages 210-210
Helium Abundances in Gaseous Nebulae....Pages 211-211
Collisional Excitation of the 10830 He I Line and the Population of the 2 3 S He I State in Gaseous Nebulae....Pages 212-212
Planetary Nebulae and the Pregalactic Helium Abundance....Pages 213-213
N/O Abundances in Planetary Nebulae from Far-Infrared Line Observations....Pages 214-214
Investigations of DDDM 1; the Fourth Halo Planetary Nebula....Pages 215-215
The Peculiar Planetary Nebula M1-78....Pages 216-216
Oxygen Depletion Variations in Planetary Nebulae and Shells Ejected from Luminous Population I Stars....Pages 216-216
Magnesium Abundances in Planetary Nebulae and Interstellar Absorption of Mg II λ2800 A....Pages 217-217
Abundances of C, N and O in Planetary Nebulae....Pages 218-218
Some Statistics of Nebular Chemical Compositions....Pages 219-219
Electron Densities in Planetary Nebulae....Pages 220-220
Low Resolution Spectroscopy of 13 Low Surface Brightness PN’s....Pages 220-220
Effect of Density Variations on Elemental Abundance Determinations in Gaseous Nebulae....Pages 221-221
A Possible Subdivision of Type II Planetary Nebulae....Pages 222-222
Observations and Models of the ‘Helix’ Nebula NGC 7293....Pages 223-223
A Photoionization Model Study of NGC 7027....Pages 224-224
Emission Lines of CI and N II in Planetary Nebulae....Pages 225-225
The Continuum Emission from Planetary Nebulae....Pages 226-226
Comparison of Different Treatments of the Radiation Transfer in Model Calculations of Planetary Nebulae....Pages 227-227
The Spatial Distribution of Line Ratio O III/O II in High Excitation Planetary Nebulae....Pages 228-228
Magnitudes, Spectra, and Temperatures of Planetary Nuclei....Pages 229-240
Wind Features and Wind Velocities....Pages 241-250
Close-Binary and Pulsating Central Stars....Pages 251-260
Binarity and Intrinsic Variability in Central Stars of PN....Pages 261-272
Model Atmospheres and Quantitative Spectroscopy of Central Stars of Planetary Nebulae....Pages 273-292
Mass Loss Rates in Central Stars of Planetary Nebulae....Pages 293-300
The Central Star of NGC 7027....Pages 301-301
Magnitude Measurements of Central Stars of Planetary Nebulae....Pages 302-302
Stromgren Photometry of the Central Stars of Planetary Nebulae....Pages 302-302
New Identifications of Faint Central Stars in Extended PN....Pages 303-303
Einstein X-Ray Observations of Planetary Nebulae and their Implications....Pages 304-304
The Origin of the Zanstra Discrepancy: UV Excess in the Central Star Continuum?....Pages 305-305
Are Zanstra Temperatures Always Real?....Pages 306-306
Temperatures and Luminosities of Planetary Nebulae Nuclei....Pages 307-307
Broad Baseline Flux Distribution of Planetary Nuclei....Pages 308-308
Photometric and Spectroscopy Observations of Peculiar Nuclei of Planetary Nebulae....Pages 309-309
HFG1: A Planetary Nebula with a Close-Binary Nucleus....Pages 310-310
Nonradial Pulsational Analyses of the Pulsating Central Stars of Planetary Nebulae....Pages 311-311
A Search for Cool Companions of Planetary Nebula Nuclei....Pages 312-312
A Case Study of a WC Nucleus....Pages 313-313
The Nature of the Hot Companion of the G8 IV Nucleus of Abell 35....Pages 314-314
V605 Aquilae — The Most Extreme Hydrogen-Poor Object....Pages 315-315
Echelle Spectra of a Large Sample of Planetary Nebula Nuclei....Pages 316-316
The Metal-Line Spectra of Central Stars of Planetary Nebulae....Pages 317-317
Revisited Mass-Loss Rates of Planetary Nebula Nuclei Observed with IUE....Pages 317-317
Quantitative Investigations on Mass Outflow from Planetary Nebulae Nuclei....Pages 318-318
Planetary Nebulae in the Magellanic Clouds....Pages 319-334
Planetary Nebulae in Galaxies Beyond the Local Group....Pages 335-350
A Survey of Planetary Nebulae in the SMC and M31....Pages 351-351
The Kinematics of the Planetary Nebulae in the Large Magellanic Cloud....Pages 352-352
N 66: A High Excitation N Rich Planetary Nebula in the LMC....Pages 353-353
Chemical Abundances in Magellanic Cloud Planetary Nebulae....Pages 354-354
Central Star and Nebular Hasses for Magellanic Cloud Planetary Nebulae....Pages 355-355
Evolution of Magellanic Cloud Planetary Nebulae....Pages 356-356
Planetary Nebulae as Standard Candles for Extragalactic Distances....Pages 357-358
OH/IR Stars and Other IRAS Point Sources as Progenitors of Planetary Nebulae....Pages 359-380
Carbon Stars as Planetary Nebula Progenitors....Pages 381-390
Thermal Pulses and the Formation of Planetary Nebula Shells....Pages 391-400
Progenitors of Planetary Nebulae....Pages 401-410
Models of Planetary Nebulae: Generalisation of the Multiple Winds Model....Pages 411-424
Stellar Evolution and the Planetary Nebula Formation Rate....Pages 425-442
The Proto-Planetary Nebula Vy 2-2.....Pages 443-443
The Optically Resolved Planetary Nebula/OH Maser Vy 2-2....Pages 444-444
New IR-Observations of Post AGB Stars and Proto-Planetary Nebulae....Pages 445-445
IRAS 17516–2525: The Birth of a Planetary Nebula?....Pages 446-446
The Shocking Truth About Some “Proto-PN”....Pages 447-447
New OH/IR Stars: Proto-Planetary Nebulae?....Pages 448-448
Infrared Photometry of OH/IR Stars....Pages 449-449
The Presence of Water Masers in Color-Selected IRAS Sources....Pages 450-450
Some Dependences for Long-Period Variables and a Possible Scheme of Their Evolution....Pages 451-451
Proto-Planetary Nebulae: Models and Iras Observations....Pages 452-452
HCN, the First Strong Maser in Carbon-Rich Stars....Pages 453-453
Lower Limit for NPN’s Masses....Pages 454-454
Some Hypothesized Observational Aspects of Magnetic Fields in Protoplanetary Nebulae....Pages 455-455
Stalled Winds: Interactions Between Nebulae and Stellar Winds....Pages 456-456
Optically Thick Wind from Post-AGB Stars and Formation of Planetary Nebulae....Pages 457-457
Direct Evidence for a Bipolar Stellar Wind in NGC 2392....Pages 458-458
Two-Dimensional Hydrodynamical Models of Planetary Nebulae (PNe)....Pages 459-459
The Spatial Structure of Planetary Nebulae with Binary Central Stars....Pages 460-460
Morphologies of Planetary Nebulae with Close-Binary Nuclei....Pages 461-461
CCD Images of Three Planetary Nebulae With Binary Nuclei....Pages 462-462
Evolutionary Tracks for Central Stars of Planetary Nebulae....Pages 463-472
The Distribution of Planetary Nebula Nuclei in the Log L-Log T Plane: Inferences from Theory....Pages 473-480
The Position of the Central Stars of PN on the HR Diagram....Pages 481-492
Initial Masses....Pages 493-504
Binary Stars and Planetary Nebulae....Pages 505-522
The Evolution of the Common Planetary Nebula....Pages 523-530
Planetary Nebulae with Massive Central Stars....Pages 531-538
A New Method for Observational Testing of the Planetary Nebulae Nuclei Evolution....Pages 539-539
Mass Distribution and Birth Rate of Central Stars of Planetary Nebulae: Comparison with White Dwarfs, and Influence of Selection Effects....Pages 540-540
Common Envelope Evolutions of Binary System and Formation of Planetary Nebulae....Pages 541-541
Theoretical Models for the Evolution of Planetary Nebulae Nuclei Tested by Observations....Pages 542-542
Snapshots of Evolving Model Planetary Nebulae....Pages 542-542
Evolution of Planetary Nebulae: A Comparison with Observed Central Stars....Pages 543-544
White Dwarfs and Planetary Central Stars....Pages 545-554
Properties and Evolution of White Dwarf Stars....Pages 555-566
Summarizing Remarks on the Structure and Evolution of Planetary Nebulae and Properties of Their Central Stars....Pages 567-576
Comments on the Applications of Planetary Nebulae Research....Pages 577-587
Back Matter....Pages 589-607