From the 1 of 4 linked papers with an AI index.
4 papers
Stellar Population Astrophysics (SPA) with the TNG. Beyond the iron peak: Galactic evolution of molybdenum, ruthenium and zirconium through open clusters
Natalia Alvarez-Baena, Valentina D'Orazi, Christopher Sneden +11
The paper measures molybdenum, ruthenium, and zirconium abundances in 81 stars from 30 open clusters using high‑resolution HARPS‑N spectra to investigate the Galactic chemical evol…
High-Resolution Infrared Spectroscopy of the Dust-Obscured Metal-Poor Open Cluster Trumpler 5
S. Ãzdemir, M. AfÅar, C. Sneden +8
Trumpler 5 is a moderately old, dust-obscured metal-poor open cluster. In this study, high-resolution near-infrared spectroscopic data of seven giant stars from the Trumpler 5 clus…
High Lithium Abundance Connection with the Chromospheric Helium in Red Giants: Spectroscopic and Asteroseismic analyses
Anohita Mallick, Christopher Sneden, Bacham E. Reddy +1
We present a study of correlations between high Li abundances and strong chromospheric He I 10830 Ã absorption line strengths in Kepler field giant stars. Our sample includes 84 gi…
The elderly among the oldest: new evidence for extremely metal-poor RR Lyrae stars
Valentina D'Orazi, Vittorio F. Braga, Giuseppe Bono +21
We performed a detailed spectroscopic analysis of three extremely metal-poor RR Lyrae stars, exploring uncharted territories at these low metallicities for this class of stars. Usi…