7 papers
Something new under the Sun: A magnetically driven CH/CN anti-correlation
Y. Momany, L. Monaco, S. Villanova +11
Spectroscopic monitoring surveys have shown that the magnetic cycle alters the photospheric structure of the Sun, perturbing the formation of molecular lines. In parallel, the stud…
Infrared photometry and CaT spectroscopy of the most metal-poor in-situ globular cluster VVV-CL001
W. Haro Moya, C. Moni Bidin, M. C. Parisi +11
Globular clusters in the Galactic bulge are difficult to study due to high extinction and severe crowding. VVV-CL001 is an old, metal-poor, and fast cluster in the inner bulge, who…
CAPOS: The bulge Cluster APOGEE Survey VI. Characterizing multiple stellar populations and chemical abundances in the bulge globular cluster NGC 6569
Nicolás Barrera, Sandro Villanova, Doug Geisler +2
Context. The CAPOS project aims to obtain accurate mean abundances and radial velocities for many elements, and it explores the multiple population (MP) phenomenon in Galactic bulg…
CAPOS: The bulge Cluster APOgee Survey VII. First detailed chemical analysis of NGC 6316
Heinz Frelijj, Danilo González-DÃaz, Douglas Geisler +3
As part of the bulge Cluster APOgee Survey (CAPOS), high-resolution, high Signal-to-Noise Ratio Near-Infrared spectroscopy, we aim to conduct the most robust chemical study to date…
C and N abundances in globular clusters. I. The case of 47 Tuc and the effect of the first dredge-up
S. Villanova, L. Monaco, Y. Momany +2
Globular clusters exhibit star-to-star chemical variations, traceable through both photometric and spectroscopic data. In this study, we investigate chemical variations in the glob…
CAPOS: The bulge Cluster APOgee Survey V. Elemental abundances of the bulge globular cluster HP 1
Lady Henao, Sandro Villanova, Doug Geisler +1
We have performed a detailed abundance analysis of 10 red giant members of the heavily obscured bulge globular cluster HP~1 using high-resolution, high S/N near-infrared spectra co…