3 papers
astro-ph.GA2026
Chemical radial gradients for the bulge-bar stellar populations from the APOGEE survey
J. V. Sales-Silva, K. Cunha, V. V. Smith +20
The Milky Way bulge-bar is composed of multiple populations. Using chemical and kinematical planes, we segregate six populations in a bulge-bar sample observed by the APOGEE survey…
astro-ph.GA2026
N-emitters as possible sign-posts of GC formation
D. Schaerer, R. Marques-Chaves, H. Atek +7
Based on the finding of unusual chemical abundance ratios of N-emitters, which resemble those of globular cluster (GC) stars, their compactness, high ISM densities and other proper…
astro-ph.GA2025
Discovery of new N-emitters over a wide redshift range
I. Morel, D. Schaerer, R. Marques-Chaves +5
JWST observations have revealed rare galaxies with UV spectra exhibiting intense lines of nitrogen, indicative of super-solar N/O abundances at low metallicity. To better understan…