Matches in SemOpenAlex for { <https://semopenalex.org/work/W4313598925> ?p ?o ?g. }
- W4313598925 endingPage "40" @default.
- W4313598925 startingPage "40" @default.
- W4313598925 abstract "Abstract To understand the parameter degeneracy of M subdwarf spectra at low resolution, we assemble a large number of spectral features in the wavelength range 0.6–2.5 μ m with band strength quantified by narrowband indices. Based on the index trends of BT-Settl model sequences, we illustrate how the main atmospheric parameters ( T eff , log g , [M/H], and [ α /Fe]) affect each spectral feature differently. Furthermore, we propose a four-step process to determine the four parameters sequentially, which extends the basic idea proposed by Jao et al. Each step contains several spectral features that break the degeneracy effect when determining a specific stellar parameter. Finally, the feasibility of each spectroscopic diagnostic with different spectral quality is investigated. The result is resolution-independent down to R ∼ 200." @default.
- W4313598925 created "2023-01-06" @default.
- W4313598925 creator A5006467926 @default.
- W4313598925 creator A5006605151 @default.
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- W4313598925 creator A5049185208 @default.
- W4313598925 creator A5079060844 @default.
- W4313598925 creator A5085646745 @default.
- W4313598925 date "2023-01-01" @default.
- W4313598925 modified "2023-09-30" @default.
- W4313598925 title "M Subdwarf Research. III. Spectroscopic Diagnostics for Breaking Parameter Degeneracy" @default.
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