• Corpus ID: 237374544

Determination of Sodium Abundance Ratio from Low-Resolution Stellar Spectra and Its Applications

@inproceedings{Koo2021DeterminationOS,
  title={Determination of Sodium Abundance Ratio from Low-Resolution Stellar Spectra and Its Applications},
  author={Jae-Rim Koo and Young Sun Lee and Hye-Jin Park and Young Kwang Kim and Timothy C. Beers},
  year={2021}
}
We present a method to determine sodium-abundance ratios ([Na/Fe]) using the Na I D doublet lines in low-resolution (R ∼ 2000) stellar spectra. As stellar Na I D lines are blended with those produced by the interstellar medium (ISM), we developed a technique for removing the interstellar Na I D lines using the relationship between extinction, which is proportional to E(B − V ), and the equivalent width (EW) of the interstellar Na I D absorption lines. When measuring [Na/Fe], we also considered… 

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References

SHOWING 1-3 OF 3 REFERENCES
GRACES: Gemini remote access to CFHT ESPaDOnS spectrograph through the longest astronomical fiber ever made: experimental phase completed
The Gemini Remote Access to CFHT ESPaDONS Spectrograph has achieved first light of its experimental phase in May 2014. It successfully collected light from the Gemini North telescope and sent it
Astronomical Data Analysis Software and Systems XXVIII.
GRACES: Gemini remote access
  • 2014