Preprint
Oct 2026
Spectroscopic monitoring of long secondary period variables. The case of J-type carbon stars
Long-secondary-period (LSP) variables are a subclass of long-period variables whose origin is a matter of debate. J-type carbon stars are a subclass of carbon stars enriched in 13C, and the origin of this chemical peculiarity is unclear. In this paper, we report on the discovery of a LSP in two J-type carbon stars: VZ...
L. Planquart, A. Jorissen, H. Van Winckel
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