Literature 1971, Part 2 (Astronomy and Astrophysics Abstracts, 6)

Astronomy and Astrophysics Abstracts, which has appeared in semi-annual volumes since 1969, is de­ voted to the recording, summarizing and indexing of astronomical publications throughout the world. It is prepared under the auspices of the International Astronomical Union (according to a resolution adopted at the 14th General Assembly in 1970). Astronomy and Astrophysics Abstracts aims to present a comprehensive documentation of literature in all fields of astronomy and astrophysics. Every effort will be made to ensure that the average time interval between the date of receipt of the original literature and publication of the abstracts will not exceed eight months. This time interval is near to that achieved by monthly abstracting journals, com­ pared to which our system of accumulating abstracts for about six months offers the advantage of greater convenience for the user. Volume 6 contains literature published in 1971 and received before March 15, 1972; some older liter­ ature which was received late and which is not recorded in earlier volumes is also included. Front Matter....Pages I-X Introduction....Pages 1-2 Abbreviations....Pages 3-4 Periodicals, Proceedings, Books, Activities....Pages 5-60 Applied Mathematics, Physics....Pages 61-71 Instruments and Astronomical Techniques....Pages 72-90 Positional Astronomy, Celestial Mechanics....Pages 91-108 Space Research....Pages 109-116 Theoretical Astrophysics....Pages 117-155 Sun....Pages 156-203 Earth....Pages 204-231 Planetary System....Pages 232-298 Stars....Pages 299-356 Interstellar Matter, Gaseous Nebulae, Planetary Nebulae....Pages 357-375 Radio Sources, Quasars, Pulsars, X Ray-, Gamma Ray-Sources, Cosmic Radiation....Pages 376-411 Stellar Systems....Pages 412-450 Back Matter....Pages 451-560