Browsing by Author "Usenko, I. A."

Browsing by Author "Usenko, I. A."

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    The pulsation mode of the Cepheid Polaris 
    Turner, David Gerald, 1945-; Kovtyukh, V. V.; Usenko, I. A.; Gorlova, N. I. (IOP Publishing Limited, 2013-01-01)

    A previously derived photometric parallax of 10.10 ± 0.20 mas, d = 99 ± 2 pc, is confirmed for Polaris by a spectroscopic parallax derived using line ratios in high dispersion spectra for the Cepheid. The ...