Regions of Recent Star Formation: Proceedings of the Symposium on “Neutral Clouds near HII Regions — Dynamics and Photochemistry”, Held in Penticton, British Columbia, June 24–26, 1981

Front Matter....Pages i-xvi
The Dynamical Evolution of HII Regions in Non-Uniform Environments....Pages 1-14
HII Regions in Collapsing Massive Molecular Clouds....Pages 15-23
The Dynamical Evolution of an HII Region....Pages 25-30
Radio Continuum Observations of W1....Pages 31-38
Interaction of the HII Region S236 with the Surrounding Medium....Pages 39-42
Optical and Millimeter Wavelength Study of the Complex Sh2-147/Sh2-153....Pages 43-51
The HII Region W40 and its Molecular Cloud....Pages 53-60
HII Bubbles and Shocks in Molecular Clouds....Pages 61-66
A Multi-Purpose Scanning Fabry-Perot Interferometer System....Pages 67-72
Fine Structure Lines in HII Regions Interacting with Molecular Clouds....Pages 73-80
Excited OH in Absorption Towards W3(OH)....Pages 81-82
Ultra-Compact HII Regions Embedded in Infrared Sources....Pages 83-89
Dynamical Effects of Stellar Winds and Shocked Gas on Interstellar Clouds....Pages 91-105
A Calculation of Molecule Abundances behind Slow Shocks....Pages 107-116
Gravitational Instabilities in Shock Compressed Gas Layers....Pages 117-122
Magnetic Fields and the Evolution of Shocked Gas Clouds....Pages 123-128
Radiation-Hydrodynamics of HII Regions and Molecular Clouds....Pages 129-132
High Velocity Gas in Molecular Clouds....Pages 133-139
High Velocity CO Emission around T Tauri Stars....Pages 141-146
Observations and Interpretation of the Line Profiles of Excited H 2 in Orion....Pages 147-153
High Velocity H 2 Line Emission in the NGC 2071 Region....Pages 155-159
Infrared Atomic Hydrogen Line Formation in Luminous Stars....Pages 161-166
Atomic Hydrogen Zones Associated with HII Regions....Pages 167-174
The NGC 7538 Region: The Distribution and Dynamics of Molecules Compared with those of HI and H + ....Pages 175-180
Atomic and Ionized Hydrogen in Cepheus OB3....Pages 181-184
Neutral Hydrogen Observations of the Puppis Window....Pages 185-191
Neutral Hydrogen Towards Tycho’s Supernova Remnant....Pages 193-199
The Velocities of the Neutral and Ionized Components of HII Regions....Pages 201-208
A CO Survey of 372 Optical HII Regions....Pages 209-212
HI and CO Observations of Distant HII Regions in the Galactic Anticenter....Pages 213-220
Dynamics of CO Clouds around HII Regions in the Outer Galaxy....Pages 221-230
CO J=2−1 Observations of Southern Galactic Plane HII Regions....Pages 231-236
Observations of CO J = 3 → 2 Emission from Molecular Clouds....Pages 237-244
Properties of Giant Molecular Clouds in the Galactic Molecular Ring....Pages 245-247
Changes of the Star Formation Rate and the Initial Mass Function with Galactic Radius....Pages 249-250
Infrared and Maser Sources in Regions of Star Formation....Pages 251-286
High Velocity CO Line Wings and the Dynamics of Star Forming Molecular Cloud Cores....Pages 287-293
Kinematics of Molecular Gas in Orion from Observations of the 1 3 CO J=2→1 Line....Pages 295-299
Molecular Hydrogen Emission from Broad Wing Cloud Cores....Pages 301-306
Asymmetric Broad HCO + Line Wings in Cores of Molecular Clouds....Pages 307-314
Some of the Problems Raised by CO and HCO + Observations in the RHO Ophiuchi Cloud....Pages 315-321
CO J = 3 → 2 and Far Infrared Continuum Observations of L1551, Orion KL and IRC +10216....Pages 323-328
CO in the Horsehead Nebula....Pages 329-334
Small Scale Clumping in the Orion Molecular Cloud....Pages 335-336
The ON-1 CO Cloud Complex — Onset of Star Formation....Pages 337-342
CO Observations of the Molecular Cloud Encompassing Sharpless 222....Pages 343-348
Formation of a B0.5 Star Due to the Interaction of a Shock Wave with a Molecular Cloud in IC1805....Pages 349-355
Chemistry Relevant to Molecular Clouds near HII Regions....Pages 357-377
Selective Photodestruction of CO Isotopic Species....Pages 379-384
X-Ray Ionization and the Chemistry of the Orion Molecular Cloud....Pages 385-389
Methyl Cyanide as a Probe of the Temperature and Density in SgrB 2 ; Quasi-Equilibrium in Molecular Rotational Levels....Pages 391-397
High Spatial Resolution Observations of HCN in S 235B....Pages 399-406
A Model for the Formaldehyde Maser near NGC 7538 — IRS 1....Pages 407-408
H 2 CO near Compact HII Regions — New WSRT Results....Pages 409-418
Is a BN-Type Object the Energy Input to the NH 3 Cloud in NGC 2071?....Pages 419-423
VLA Observations of OH Masers and Associated Ultracompact Continuum Sources....Pages 425-432
Carbon Monoxide in the Magellanic Clouds....Pages 433-438
Molecular Line Mapping of OMC-1....Pages 439-444
An Upper Limit to the Atomic Carbon Abundance in the Orion Plateau....Pages 445-452
Observations of Neutral Carbon in the NGC 1977 Bright Rim....Pages 453-461
Observations of CO in TMC 1....Pages 463-467
CO Emission Associated with Cold Neutral Hydrogen....Pages 469-477
On the Correlation of CH Abundance and Extinction in Dark Nebulae....Pages 479-484
Back Matter....Pages 485-496