The Magellanic Clouds: Proceedings of the 148th Symposium of the International Astronomical Union, Held in Sydney, Australia, July 9-13, 1990

ISBN-13: 9780792311102 / Angielski / Twarda / 1991 / 503 str.

International Astronomical Union; Raymond Haynes; Douglas Milne

Opis

Symposium 148 "The Magellanic Clouds and their Dynamical Interaction with the Milky Way" was the first IAU Symposium held in Australia since 1973. In all, 23 countries were represented by 149 participants. The Symposium was held from July 9 to 13, 1990 at Womens College, the University of Sydney. The last symposium on the Magellanic Clouds' was held in 1983 in Ttibingen, Germany. Since then new ground-and satellite-based instruments have become available. A range of results from these instruments were presented at IAU Symposium 148 and are published in these proceedings. IAU Symposium 148 was timed to coincide with the commissioning of the Australia Telescope, and indeed, a few of the first results from that instrument were presented at this Symposium Over the next decade the Australia Telescope is destined to make a major impact on Magellanic Cloud research. Papers are arranged in five main sections reflecting the Symposium timetable: - Large-Scale Structure and Kinematics - Star Formation and Clustering - Stellar Evolution - The Interstellar Medium - The LMC-SMC-Galaxy System These are preceeded by both the introduction to and the summary of the Symposium. Questions and answers from the oral sessions are reproduced at the end of each section.

Spis treści

1. Opening Address.- The Magellanic Clouds: distance, structure, chemical composition.- 2. Conference Summary.- Conference Summary.- 3. Large-Scale Structure and Kinematics.- Review: An overview of the structure and kinematics of the Magellanic Clouds.- Distribution of young stars and gas in the Small Magellanic Cloud.- Radio continuum emission from the Magellanic Clouds.- An X-ray image of the Large Magellanic Cloud: detection of the hot interstellar medium.- Carbon Monoxide in the Magellanic Clouds.- New results on the structure and stellar content of the outer regions of the SMC.- Where is the rotation centre of the LMC?.- Dust in the Magellanic Clouds.- HI — distribution, kinematics and geometry of the Large Magellanic Cloud.- Large scale distribution of gas, dust and stars deduced from observations from the UV to the IR.- Large-scale structure and kinematics of the Magellanic Clouds from carbon star studies.- Kinematics of the LMC CH-stars.- Large scale structure and kinematics of the LMC from a study of long-period variable stars.- Large-scale structure of the Magellanic Clouds using planetary nebulae.- Fast shells and X-ray emission in 30 Doradus: SNRs and superbubbles.- X-rays from superbubbles in the Large Magellanic Cloud.- The magnetic field strength in the Large Magellanic Cloud.- Turbulence and stochastic star formation in the Large Magellanic Cloud.- A new 4m millimeter-wave telescope for a southern sky CO survey.- Structure and kinematics in the northeastern outer parts of the SMC.- IR characteristics of Type II Cepheids in the LMC and in the Galaxy.- AST/RO and submillimetre-wave observations of the Magellanic Clouds from the South Pole.- The Molonglo 843 MHz survey of the Magellanic Clouds.- The evolution of AGB stars in the Magellanic Clouds.- 4. Star Formation and Clustering.- Review: Star formation in the Magellanic Clouds.- The star formation histories of the Magellanic Clouds.- HII regions and star formation in the Magellanic Clouds.- The starburst region 30 Doradus.- Recent star formation history in the region of 30 Doradus.- CO observations of the 30-Doradus region using SEST.- Review: Star clusters in the Magellanic Clouds.- Magellanic globulars as cosmological tools.- The kinematics and abundances of star clusters in the Large Magellanic Cloud.- Young star clusters in the LMC.- The age-abundance relations and age distributions for the star clusters of the Magellanic Clouds.- Mass-to-light ratios of Large Magellanic Cloud clusters.- The age distribution function of star clusters in the LMC.- A search for non-thermal emission in the HII regions of the Magellanic Clouds.- A new survey for H?-emission-line stars and related objects in the SMC.- Similarities of the intermediate-age SMC star cluster NGC 152 with inner-disk clusters in the Milky Way.- The dynamics of NGC 1866.- Candidate protostars in the vicinity of 30 Doradus.- Line observations of the 30-Dor complex and N159A5 with the MPE imaging NIR spectrometer FAST.- HII regions and young star clusters in the Magellanic Clouds.- Observations of two different cluster types in the LMC.- Dynamical study of the LMC globular cluster NGC 1978 from core velocity dispersion.- Mass-to-light ratio of intermediate and old clusters in the Magellanic Clouds.- Radial velocities for three distant LMC globular clusters.- Dynamical evolution of binary clusters and colliding galaxies.- Properties of two star clusters of the LMC: NGC 2164, NGC 1850.- Effects of data incompleteness and metallicity on the mass functions of young LMC star clusters.- An X-ray survey of OB associations in the Large Magellanic Cloud.- Faint HII regions in the Magellanic Clouds.- Infrared imaging of intermediate age LMC/SMC clusters.- A 22-GHz map of the 30-Doradus region.- N159A: a region of active star formation in the LMC.- Shapes of Magellanic Cloud star clusters.- 5. Stellar Evolution.- Review: The chemical evolution of the Magellanic Clouds.- Cepheids in the Magellanic Clouds.- Long-period variables in the Magellanic Clouds.- Luminous blue variable stars in the Magellanic Clouds.- Wolf-Rayet stars in the Magellanic Clouds.- The interstellar reddening and metallicity of NGC 330.- Winds of hot stars in the Magellanic Clouds.- Binary X-ray sources in the LMC.- Abundances in Magellanic Cloud planetary nebulae.- Planetary nebulae in the Magellanic Clouds.- RR Lyrae stars in the Magellanic Clouds.- Studies of SNRs in the Magellanic Clouds.- SN 1987A and its role in the LMC.- Radio pulsars in the Magellanic Clouds.- First Australia Telescope observations of SNR 0540-693.- Effects of envelope overshoot on the bump of the Red Giant Branch luminosity function.- Effects of envelope overshoot on intermediate mass stars.- Monitoring SN1987A at 45MHz.- Supernova explosions in stellar wind bubbles.- Abundances and nebular and central star masses for Magellanic Cloud planetary nebulae.- Search for UHE gamma ray sources in the Magellanic Clouds.- IUE observations of stars in NGC 330 in the Small Magellanic Cloud.- Metal abundances of Magellanic Cloud clusters.- Star formation histories in dwarf irregular galaxies in the Local Group.- The spectrum of SN1987A in the LMC in July 1987.- Australia Telescope observations of the supernova remnant N49 in the LMC.- Radio imaging of the supernova remnant N132D in the Large Magellanic Cloud.- A photometric and spectroscopic study of R Coronae Borealis stars in the LMC.- Charting cool carbon stars in the Large Magellanic Cloud.- A search for long period variables in the SMC.- Two more Magellanic Cloud CM diagrams.- Properties of fast winds in hot stars in the Magellanic Clouds.- Asymptotic Giant Branch Stars in the Magellanic Clouds.- A survey for RR Lyrae variables in the Large Magellanic Cloud.- The chemical evolution of the Magellanic Clouds.- Carbon and nitrogen in the cool supergiant A7 of the young globular cluster NGC 330 in the SMC.- Comparison of the abundances in the stars and in the HII regions of the Magellanic Clouds.- New element abundances in NGC 330.- Michigan 160: a precursor to the LMC?.- N132D: a chemical and dynamic analysis.- First CCD observations of Magellanic Cloud variable stars from the Mt John University Observatory, New Zealand.- The anomalous A-type supergiants in the Magellanic clouds — evidence for post-red supergiant evolution.- The variable star population of NGC 1866.- OH/IR stars in the Large Magellanic Cloud: the observations.- Element abundances from B stars in the Magellanic Clouds.- EXOS AT Medium energy observations of the binary X-ray pulsar SMC XI.- Abundance analysis of six LMC F supergiants.- Summary: Chemical abundances and chemical evolution of the Magellanic Clouds: Prospects for the future.- Discussion: Stellar Evolution.- 6. The Interstellar Medium.- Review: The interstellar medium of the Magellanic Clouds from absorption lines.- Dust distribution and temperature in the Magellanic Clouds interstellar medium.- Molecules in the Magellanic Clouds.- Studies of the Large Magellanic Cloud using optical interstellar emission lines.- Molecular gas in the Small Magellanic Cloud.- Studies of the ISM in the LMC using SN1987A.- Ultra-high-energy cosmic rays in the Magellanic Clouds.- NaI and CaII interstellar absorption in the field of SN1987A.- Depth structure in the gas in Shapley III along three lines of sight.- Interstellar gas around WO stars in the Galaxy and the Magellanic Clouds.- Enhanced galactic star formation as caused by the Milky Way — Large Magellanic Cloud interaction: an experience from density wave studies.- Discussion: The Interstellar Medium.- 7. The LMC-SMC-Galaxy System.- Review: The interacting Magellanic System.- Optical surveys of the Magellanic Bridge, Stream and outer halos.- High velocity clouds near the Magellanic Clouds.- Asymmetric distribution of gas in the LMC and dynamical condition for globular cluster formation.- Metallicity effects on the Cepheid distance scale.- Radial velocities of clusters between the Magellanic Clouds.- Orbits of the Magellanic Clouds.- String of young clusters linking the Magellanic Clouds.- Mass loss and evolution of massive stars in the Magellanic Clouds.- The Magellanic Stream.- CO observations of Arp’s interacting galaxies.- The effect of the Magellanic Clouds on the mass distribution in the galaxy.- Special purpose computer for N-body problems.- Measurement of the absolute proper motions of the Magellanic Clouds.- Discussion: The LMC-SMC-Galaxy System.- Author Index.