naa a22 4500 510732410 CHVBK 20180411082957.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1134/S1063772913030037 doi (NATIONALLICENCE)springer-10.1134/S1063772913030037 Maharramov Y. N. Tusi Shamakhy Astrophysical Observatory, Azerbaijan National Academy of Sciences, Yu. Mammadaliyev settlement, Shamakhy district, Republic of Azerbaijan aut Spectral variability of the STAR 55 Cyg B3 Ia [Elektronische Daten] [Y. Maharramov] We study the variability of the Hα and Hβ lines in the spectrum of 55 Cyg based on observations carried out in 2010 on the 2-m telescope of the Shamakhy Observatory of the Azerbaijan National Academy of Sciences. These observations were carried out at the Cassegrain focus of the telescope. The spectral resolution is close to 15 000. The Hα emission and absorption components disappeared on some nights. This may be associated with asphericity of the stellar wind. A more complete explanation requires additional observations. Pleiades Publishing, Ltd., 2013 Astronomy Reports SP MAIK Nauka/Interperiodica 57/4(2013-04-01), 303-309 1063-7729 57:4<303 2013 57 11444 https://doi.org/10.1134/S1063772913030037 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1063772913030037 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Maharramov Y. N. Tusi Shamakhy Astrophysical Observatory, Azerbaijan National Academy of Sciences, Yu. Mammadaliyev settlement, Shamakhy district, Republic of Azerbaijan aut NATIONALLICENCE 773 0- Astronomy Reports SP MAIK Nauka/Interperiodica 57/4(2013-04-01), 303-309 1063-7729 57:4<303 2013 57 11444 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer