Alternative Standard Frequencies for Interstellar Communication

Autor:	Sivaram, C, Arun, Kenath, O V, Kiren
Rok vydání:	2017
Předmět:	Physics - Popular Physics
Zdroj:	International Journal of Astrobiology, 2017
Druh dokumentu:	Working Paper
DOI:	10.1017/S1473550417000350
Popis:	The 21 cm hydrogen line is considered a favourable frequency by the SETI programme in their search for signals from potential extra-terrestrial civilizations. The Pioneer plaque, attached to the Pioneer 10 and Pioneer 11 spacecraft, portrays the hyperfine transition of neutral hydrogen and used the wavelength as a standard scale of measurement.Although this line would be universally recognized and is a suitable wavelength to look for radio signals from extraterrestrials, the presence of ubiquitous radiation from galactic hydrogen could make searches a little difficult. In this paper we suggest several alternate standard frequencies which is free of interference from atomic or molecular sources and is independent of any bias. Comment: 5 pages, 5 equations
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1707.09259 Zobrazit plný text záznamu View this record from Arxiv