Spectroscopy of LMC Cluster Stars
Andrea K. Dupree, Christian I. Johnson, Mario Mateo, and Antonino P., Milone
TL;DR
This study uses high-resolution spectroscopy to analyze stars in the LMC cluster NGC 1866, revealing rapid rotation, variable H-alpha emission, and outflows, which impact photometric measurements.
Contribution
It provides new insights into stellar rotation, emission variability, and outflows in a young LMC cluster using high-resolution spectra.
Findings
Detection of rapidly rotating stars
Observation of variable H-alpha emission and absorption
Signatures of outflowing material affecting photometry
Abstract
High resolution spectra of stars in the ~200 Myr LMC globular cluster, NGC 1866, reveal rapidly rotating stars with variable H-alpha emission and absorption, and signatures of outflowing material. The variable H-alpha line can substanti ally affect photometric measurements obtained with HST/WFC3 narrow-band filters.
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