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astro-ph.SR2024
The nature of medium-period variables on the extreme horizontal branch I. X-shooter study of variable stars in the globular cluster Cen
J. Krticka, I. Krtickova, C. Moni Bidin +6
A fraction of the extreme horizontal branch stars of globular clusters exhibit a periodic light variability that has been attributed to rotational modulation caused by surface spot…
astro-ph.SR2024
Hot subdwarf wind models with accurate abundances II. Helium-dominated merger products CD-46 8926 and CD-51 11879
J. Krticka, I. Krtickova, J. Janik +3
We aim to understand the influence of evolutionary modified surface abundances on the strength of the stellar wind in the helium-dominated subdwarfs CD-46 8926 and CD-51 11879. We…