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Red giant masses and ages derived from carbon and nitrogen abundances
Marie Martig, Morgan Fouesneau, Hans-Walter Rix +7
We show that the masses of red giant stars can be well predicted from their photospheric carbon and nitrogen abundances, in conjunction with their spectroscopic stellar labels log…
Clear evidence for the presence of second-generation asymptotic giant branch stars in metal-poor Galactic globular clusters
D. A. Garcia-Hernandez, Sz. Meszaros, M. Monelli +5
Galactic globular clusters (GCs) are known to host multiple stellar populations: a first generation with a chemical pattern typical of halo field stars and a second generation (SG)…
Uniqueness results for noncommutative spheres and projective spaces
Teodor Banica, Szabolcs Meszaros
It is known that, under strong combinatorial axioms, are the only orthogonal quantum groups. We prove here similar results for the noncommutative sp…
Generalized solution for the Herman Protocol Conjecture
Endre Csóka, Szabolcs Mészáros, András Pongrácz
The Herman Protocol Conjecture states that the expected time of Herman's self-stabilizing algorithm in a system consisting of identical processes organ…
NGC 7789: An Open Cluster Case Study
Jamie C. Overbeek, Eileen D. Friel, Heather R. Jacobson +3
We have obtained high-resolution spectra of 32 giants in the open cluster NGC 7789 using the Wisconsin-Indiana-Yale-NOAO Hydra spectrograph. We explore differences in atmospheric p…
New H-band Stellar Spectral Libraries for the SDSS-III/APOGEE survey
O. Zamora, D. A. Garcia-Hernandez, C. Allende Prieto +18
The Sloan Digital Sky Survey--III (SDSS--III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) has obtained high resolution (R 22,500), high signal-to-noise r…