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Publikováno v:
Experimental and Therapeutic Medicine. 25
Autor:
Song-nian Qin, Jiu-kang Li
Publikováno v:
Chinese Astronomy and Astrophysics. 11:146-148
We have obtained a large amount of high-dispersion spectra of Arcturus using our coude spectrograph attached to our 1-metre telescope. From this collection, we picked out an unbroken sequence of 5 spectra of the CaII H and K lines taken in a period o