Chemical Compositions of Field and Globular Cluster RR Lyrae Stars. I. NGC 3201
We present a detailed spectroscopic analysis of horizontal branch stars in the globular cluster NGC 3201. We collected optical (4580–5330 Å), high-resolution (∼34,000), high signal-to-noise ratio (∼200) spectra for 11 RR Lyrae stars and one red horizontal branch star with the multifiber spectrograph M2FS with the 6.5 m Magellan telescope at the Las
Magurno, D. et al.
Fecha de publicación:
9
2018