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- Centre National de la Recherche ScientifiqueFR337 papers
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16 papers · 1 filter
Constraining the efficiency of angular momentum transport with asteroseismology of red giants: the effect of stellar mass
P. Eggenberger, N. Lagarde, A. Miglio +12
Context: Constraints on the internal rotation of red giants are now available thanks to asteroseismic observations. Preliminary comparisons with rotating stellar models indicate th…
Quantum synchronization as a local signature of super- and subradiance
B. Bellomo, G. L. Giorgi, G. M. Palma +1
We study the relationship between the collective phenomena of super and subradiance and spontaneous synchronization of quantum systems. To this aim we revisit the case of two detun…
APOGEE Chemical Abundances of Globular Cluster Giants in the Inner Galaxy
Ricardo P. Schiavon, Jennifer A. Johnson, Peter M. Frinchaboy +27
We report chemical abundances obtained by SDSS-III/APOGEE for giant stars in five globular clusters located within 2.2 kpc of the Galactic centre. We detect the presence of multipl…
Chemical trends in the Galactic Halo with APOGEE data
E. Fernández-Alvar, L. Carigi, C. Allende Prieto +10
The galaxy formation process in the -Cold Dark Matter scenario can be constrained from the analysis of stars in the Milky Way's halo system. We examine the variation of chemical…
Nitrogen depletion in field red giants: mixing during the He flash?
T. Masseron, N. Lagarde, A. Miglio +2
We combine simultaneous constraints on stellar evolutionary status from asteroseismology, and on nitrogen abundances derived from large spectroscopic surveys, to follow nitrogen su…
Constraining the Thin Disc Initial Mass Function using Galactic Classical Cepheids
R. Mor, A. C. Robin, F. Figueras +1
Context: The Initial Mass Function (IMF) plays a crucial role on galaxy evolution and its implications on star formation theory make it a milestone for the next decade. It is in th…