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Stellar Parameters and Chemical Abundances for 20,032 Open Cluster Members from Gaia XP Spectra Using a Boosting Multihead Attention Network

  • Authors: Jingzhen Sun, Yude Bu, Jiangchuan Zhang, Mengmeng Zhang, ShanShan Li, Yuhang Zhang, Ke Wang, Zhenping Yi, Xiaoming Kong, Meng Liu, Minglei Wu

Jingzhen Sun et al 2026 The Astrophysical Journal Supplement Series 285 .

  • Provider: AAS Journals

Caption: Figure 11.

Comparison of the 11 stellar labels derived from our low-resolution XP spectra against the high-resolution APOGEE ASPCAP pipeline for 170 common stars in the unseen application set. The red dashed line indicates the identity relation (y = x). The dotted lines (orange, green, and purple) represent the ±1σ, ±2σ, and ±3σ dispersion intervals derived from the residuals, respectively. The top panels show the marginal probability density distributions of ASPCAP’s parameters (blue) and ours (orange), demonstrating the consistency of the global distributions.

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