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20172026
most citedDetermination of the primordial helium abundance based on NGC 346 an HII region of the Small Magellanic Cloud

65 citations · 229 across the 18 of their papers we have counts for

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astro-ph.SR2020★ 23 cited

Helium abundances and its radial gradient from the spectra of HII regions and ring nebulae of the Milky Way

J. E. Méndez-Delgado, C. Esteban, J. García-Rojas +2

We determine the radial abundance gradient of helium in the disc of the Galaxy from published spectra of 19 regions and ring nebulae surrounding mass…