The metallicity mid-plane of the Milky Way's disk follows a warped shape with line-of-node 4.24 degrees for the thin disk, consistent with Cepheid-based warp measurements.
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The Galactic Disk North-south Asymmetry in Metallicity May Be A New Tracer for the Disk Warp
The metallicity mid-plane of the Milky Way's disk follows a warped shape with line-of-node 4.24 degrees for the thin disk, consistent with Cepheid-based warp measurements.