Open AccessType II Cepheids: evidence for Na–O anticorrelation for BL Her type stars?
Author(s) -
V. V. Kovtyukh,
I. Yegorova,
S. M. Andrievsky,
С. А. Коротин,
I. Saviane,
B. Lemasle,
F. A. Chekhonadskikh,
S. I. Belik
Publication year - 2018
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-8711
pISSN - 0035-8711
DOI - 10.1093/mnras/sty671
Subject(s) - rr lyrae variable , astrophysics , stars , cepheid variable , physics , instability strip , variable star , globular cluster , halo , population , chemical composition , spectral line , astronomy , galaxy , demography , sociology , thermodynamics
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