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A Two-level Radial-velocity Zero-point Calibration for LAMOST MRS with Gaia and APOGEE and a Value-added RV Catalog

  • Authors: Jinming Zhang, Haibo Yuan

Jinming Zhang and Haibo Yuan 2026 The Astrophysical Journal Supplement Series 286 .

  • Provider: AAS Journals

Caption: Figure 8.

Dispersion of ΔRV versus S/N using APOGEE DR19 as an independent external validation. Because the DR19 sample is not used in the calibration, it provides an unbiased check of the achieved RV precision and the improvement from the two-level correction.

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