<電子ブック>
Strategies for the Search for Life in the Universe : A Joint Session of Commissions 16, 40, and 44, Held in Montreal, Canada, During the IAU General Assembly, 15 and 16 August, 1979

責任表示
著者
本文言語
出版者
出版年
出版地
関連情報
概要 Leo Goldberg Kitt Peak National Observatory Tucson, Arizona 85726, U. S. A. Of all the reasons for exploring the Universe, none is more com pelling than the possibility of discovering intelligent life... elsewhere in the Universe. Still the quest for extraterrestrial life has been near the bottom of the astronomers' list of priorities, not because the number of extraterrestrial civilizations is conjectured to be van ishingly small, but because our powers of detection were thought to be far too weak. About ten years ago, however, the growing reach of ra dio telescopes on the ground and of optical and infrared telescopes in space persuaded a number of thoughtful astronomers that the time for a more serious search had arrived. Accordingly, a joint Soviet-American conference on the problems of Communication with Extraterrestrial In telligence was convened at the Byurakan Astrophysical Observatory of the Armenian Academy of Sciences during September 5-11, 1971 and was soon followed by a number of other important meetings, notably a series of NASA-sponsored workshops in the USA held between January, 1975 and May, 1976. Since SETI is fundamentally an international undertaking and as tronomical methods and techniques are required for its pursuit, it is natural for the International Astronomical Union to lend its support by sponsoring conferences and otherwise facilitating cooperation among countries. The active involvement of the I. A. U.続きを見る
目次 Highlights
Highlights of the Proceedings
I. The Number N of Advanced Civilizations in Our Galaxy and the Question of Galactic Colonization
N is Very Small
N is Neither Very Small nor Very Large
Galactic-Scale Civilization
The Number N of Galactic Civilizations must be Either Very Large or Very Small
Uncertainty in Estimates of the Number of Extraterrestrial Civilizations
A New Approach to the Number N of Advanced Civilizations in the Galaxy
II. Strategies for SETI Through Radio Waves
Microwave Searches in the U.S.A. and Canada
A Bimodal Search Strategy for SETI
III. The Search for Planets and Early Life in Other Solar Systems
The Astrometric Search for Neighboring Planetary Systems
Search for Planets by Spectroscopic Methods
The Search for Planets in Other Solar Systems Through Use of the Space Telescope
A Comparison of Alternative Methods for Detecting Other Planetary Systems
The Search for Early Forms of Life in Other Planetary Systems: Future Possibilities Afforded by Spectroscopic Techniques
IV. Manifestations of Advanced Cosmic Civilizations
Starships and their Detectability
Radio Leakage and Eavesdropping
Conclusions
Conclusions and Recommendations from the Joint Session.
続きを見る
本文を見る Full text available from SpringerLink ebooks - Physics and Astronomy (Archive)

詳細

レコードID
主題
SSID
eISBN
登録日 2020.06.27
更新日 2020.06.28