F
Francesca Primas
Researcher at European Southern Observatory
Publications - 86
Citations - 6187
Francesca Primas is an academic researcher from European Southern Observatory. The author has contributed to research in topics: Metallicity & Stars. The author has an hindex of 35, co-authored 86 publications receiving 5774 citations.
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Journal ArticleDOI
The Extremely Metal-poor, Neutron Capture-rich Star CS 22892-052: A Comprehensive Abundance Analysis
Christopher Sneden,John J. Cowan,John J. Cowan,James E. Lawler,Inese I. Ivans,Inese I. Ivans,Scott Burles,Timothy C. Beers,Francesca Primas,Vanessa Hill,James W. Truran,George M. Fuller,B. Pfeiffer,Karl-Ludwig Kratz +13 more
TL;DR: In this paper, high-resolution spectra obtained with three ground-based facilities and the Hubble Space Telescope (HST) have been combined to produce a new abundance analysis of CS 22892-052, an extremely metal-poor giant with large relative enhancements of neutron capture elements.
Journal ArticleDOI
Lithium isotopic abundances in metal-poor halo stars
TL;DR: In this article, very high quality spectra of 24 metal-poor halo dwarfs and subgiants have been acquired with ESO's VLT/UVES for the purpose of determining Li isotopic abundances.
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The DART Imaging And CaT Survey of the Fornax Dwarf Spheroidal Galaxy
Giuseppina Battaglia,Eline Tolstoy,Amina Helmi,Mike Irwin,B. Letarte,Pascale Jablonka,Vanessa Hill,Kim Venn,Matthew Shetrone,Nobuo Arimoto,Francesca Primas,Andreas Kaufer,Patrick Francois,Thomas Szeifert,Tom Abel,Kozo Sadakane +15 more
TL;DR: In this article, the structural parameters of the Fornax dwarf spheroidal galaxy were derived using wide field imaging covering the galaxy out to its tidal radius, and the spatial distribution of the stars of different ages as selected from colour-magnitude diagram analysis.
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First stars VIII. Enrichment of the neutron-capture elements in the early Galaxy
P. François,P. François,E. Depagne,E. Depagne,Vanessa Hill,Matthew Spite,François Spite,Bertrand Plez,Timothy C. Beers,Johannes Andersen,G. James,G. James,Beatriz Barbuy,Roger Cayrel,Piercarlo Bonifacio,Paolo Molaro,Birgitta Nordström,Francesca Primas +17 more
TL;DR: Cayrel et al. as discussed by the authors measured accurate, homogeneous neutron-capture element abundances for the sample of 32 EMP giant stars studied earlier in this series, including 22 stars with [Fe/H]< -3.5.
Journal ArticleDOI
First stars XII. Abundances in extremely metal-poor turnoff stars,and comparison with the giants
Piercarlo Bonifacio,Piercarlo Bonifacio,Matthew Spite,Roger Cayrel,Vanessa Hill,Vanessa Hill,François Spite,P. François,Bertrand Plez,H.-G. Ludwig,Elisabetta Caffau,Paolo Molaro,Paolo Molaro,E. Depagne,Johannes Andersen,Johannes Andersen,Beatriz Barbuy,Timothy C. Beers,Birgitta Nordström,Francesca Primas +19 more
TL;DR: In this article, the authors compare the results for giants with new, accurate abundances for all observable elements in 18 extremely metal-poor (EMP) turnoff stars, at all metallicities.