Recalibration of the H α Surface Brightness–Radius Relation for Planetary Nebulae Using Gaia DR3: New Distances and the Milky Way Oxygen Radial Gradient
O. Cavichia, H. Monteiro, M. Cerviño, Adalberto R. da Cunha-Silva et autres
Abstract The spatial distribution of chemical elements in the Galactic disk provides key constraints on models of galaxy evolution. However, studies using planetary nebulae (PNe) as tracers have been historically limited by large uncertainties in their distances. To overcome the long-standing distance …
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The Astrophysical Journal