论文信息 - Helium abundances and its radial gradient from the spectra of H ii regions and ring nebulae of the Milky Way - 字舞流文

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

C. Esteban | J. Garc'ia-Rojas | M. Valerdi | J. E. M'endez-Delgado | K. Z. Arellano-C'ordova | K. Z. Arellano-Córdova