... Let us now compare the pulse energies required for communication with a ETI at the 1.315-mm laser transition in atomic iodine and the 21-cm radio line of hydrogen. ...
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Ссылки http://lnfm1.sai.msu.ru/SETI/koi/articles/laser%20transition.PDF -- 542.8 Кб -- 24.10.2008 Похожие документы
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Ссылки http://lnfm1.sai.msu.ru/~rastor/Ralf_Bender/imprs_chapter_1_2007_matter_and_radiation.pdf -- 1223.8 Кб -- 03.03.2008 Похожие документы
... That these differences are due to differences in the chemical compositions is supported by theoretical models of the positions of the fundamental blue edges of the instability strip as functions of the abundances of hydrogen, helium, and the metals. ...
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Ссылки http://lnfm1.sai.msu.ru/~rastor/Books/Sandage&Tammann_LuminCalibr.pdf -- 1151.8 Кб -- 16.07.2008 Похожие документы