Time-dependent spectral-feature variations of stars displaying the B[e] phenomenon III. HD 50138

0461424 - ASÚ 2017 RIV FR eng J - Článek v odborném periodiku
Jeřábková, T. - Korčáková, D. - Miroshnichenko, A. S. - Danford, S. - Zharikov, S.V. - Křiček, R. - Zasche, P. - Votruba, Viktor - Šlechta, Miroslav - Škoda, Petr - Janík, J.
Time-dependent spectral-feature variations of stars displaying the B[e] phenomenon III. HD 50138.
Astronomy & Astrophysics. Roč. 586, February (2016), A116/1-A116/29. ISSN 0004-6361. E-ISSN 1432-0746
Grant ostatní: GA ČR(CZ) GAP209/10/0715
Institucionální podpora: RVO:67985815
Klíčová slova: Be stars * circumstellar matter * emission-line
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 5.014, rok: 2016

We describe the spectral variability of HD 50138 over the last twenty years. Based on these data, we determine new restrictions for future modelling. We confirm the quasi-periodic behaviour of the object's spectral variability, which probably reflects mass transfer in a binary system. This behaviour also supports a recently introduced explanation of the nature of FS CMa stars as post-merger systems.
Trvalý link: http://hdl.handle.net/11104/0261018