A Detailed Study of the Barium Central Star of the Planetary Nebula Abell 70
Monthly Notices of the Royal Astronomical Society（2022）
Key words
accretion, accretion discs,stars: AGB and post-AGB,stars: chemically peculiar,planetary nebulae: general,planetary nebulae: individual: PN A66 70, PN G038.1-25.4.
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