Estimation of stellar atmospheric parameters from LAMOST DR8 low-resolution spectra with 20$\leq$SNR$<$30

no code implementations • 13 Apr 2022 • Xiangru Li, Zhu Wang, Si Zeng, Caixiu Liao, Bing Du, X. Kong, Haining Li

Firstly, this scheme detected stellar atmospheric parameter-sensitive features from spectra by the Least Absolute Shrinkage and Selection Operator (LASSO), rejected ineffective data components and irrelevant data.

Quasiparticle Interference of the van-Hove singularity in Sr$_2$RuO$_4$

no code implementations • 10 Mar 2021 • A. Kreisel, C. A. Marques, L. C. Rhodes, X. Kong, T. Berlijn, R. Fittipaldi, V. Granata, A. Vecchione, P. Wahl, P. J. Hirschfeld

Here, we determine the electronic structure of the van Hove singularity in the surface layer of Sr$_2$RuO$_4$ by quasiparticle interference imaging.

Strongly Correlated Electrons Superconductivity