Far-UV spectroscopy of two hot subdwarfs reveals extreme heavy-element enrichments with patterns matching i-process nucleosynthesis, indicating self-enrichment rather than diffusion.
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ZTF-discovered radial-mode sdB pulsators have mean Teff of 28,300 K and log g of 5.56, placing them at the boundary between V361 Hya and V1093 Her classes with canonical masses and distinguishing them from blue large-amplitude pulsators.
citing papers explorer
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Evidence for neutron capture in heavy-metal hot subdwarfs: Far-UV spectroscopy of EC22536-5304 and LSIV-14 116
Far-UV spectroscopy of two hot subdwarfs reveals extreme heavy-element enrichments with patterns matching i-process nucleosynthesis, indicating self-enrichment rather than diffusion.
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Spectroscopic follow-up of hot subdwarf variables found in ZTF -- Atmospheric and fundamental properties of radial-mode sdB pulsators
ZTF-discovered radial-mode sdB pulsators have mean Teff of 28,300 K and log g of 5.56, placing them at the boundary between V361 Hya and V1093 Her classes with canonical masses and distinguishing them from blue large-amplitude pulsators.