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astro-ph.SR2024
Lithium Cepheid V708 Car with an unusual chemical composition
V. V. Kovtyukh, S. M. Andrievsky, K. Werner +2
The purpose of this work is to spectroscopically analyse the classical Cepheid V708 Car. A preliminary check of the spectrum of V708 Car showed that this is a lithium-rich supergia…
astro-ph.SR2023
Unique distant classical Cepheid OGLE GD-CEP-1353 with anomalously high abundances of s- and r-process elements
V. V. Kovtyukh, S. M. Andrievsky, K. Werner +1
While looking for recently discovered distant Cepheids with an interesting chemical composition, we noticed one star (OGLE GD-CEP-1353) with extremely large equivalent widths of sp…