456 citations · 1.4k across the 17 of their papers we have counts for
7 papers · 1 filter
Observational signatures for depletion in the Spite plateau: solving the cosmological Li discrepancy?
J. Melendez, L. Casagrande, I. Ramirez +2
We present Li abundances for 73 stars in the metallicity range -3.5 < [Fe/H] < -1.0 using improved IRFM temperatures (Casagrande et al. 2010) with precise E(B-V) values obtained mo…
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. II. Ages, metallicities, detailed elemental abundances, and connections to the Galactic thick disc
T. Bensby, S. Feltzing, J. A. Johnson +13
The Bulge is the least understood major stellar population of the Milky Way. Most of what we know about the formation and evolution of the Bulge comes from bright giant stars. The…
Unprecedented accurate abundances: signatures of other Earths?
J. Melendez, M. Asplund, B. Gustafsson +2
For more than 140 years the chemical composition of our Sun has been considered typical of solar-type stars. Our highly differential elemental abundance analysis of unprecedented a…
The peculiar solar composition and its possible relation to planet formation
Jorge Melendez, Martin Asplund, Bengt Gustafsson +1
We have conducted a differential elemental abundance analysis of unprecedented accuracy (0.01 dex) of the Sun relative to 11 solar twins from the Hipparcos catalogue and 10 solar a…
Elemental abundances in the Galactic bulge from microlensed dwarf stars
T. Bensby, S. Feltzing, J. A. Johnson +11
We present elemental abundances of 13 microlensed dwarf and subgiant stars in the Galactic bulge, which constitute the largest sample to date. We show that these stars span the ful…
The Rise of the AGB in the Galactic Halo: Mg Isotopic Ratios and High Precision Elemental Abundances in M71 Giants
Jorge Melendez, Judy Cohen
High-resolution (R ~ 100 000), high signal-to-noise spectra of M71 giants have been obtained with HIRES at the KeckI Telescope in order to measure their Mg isotopic ratios, as well…