Overview of the lithium problem in metal-poor stars and new results on 6Li (2008)
Cayrel, Roger, Steffen, Matthias, Bonifacio, Piercarlo, Ludwig, Hans-Günter, Caffau, Elisabetta
Two problems are discussed here. The first one is the 0.4 dex discrepancy between the 7Li abundance derived from the spectra of metal-poor halo stars on the one hand, and from Big Bang...
Overview of the lithium problem in metal-poor stars and new results on 6Li (2008)
Cayrel, Roger, Steffen, Matthias, Bonifacio, Piercarlo, Ludwig, Hans-Günter, Caffau, Elisabetta
Two problems are discussed here. The first one is the 0.4 dex discrepancy between the 7Li abundance derived from the spectra of metal-poor halo stars on the one hand, and from Big Bang...
Overview of the lithium problem in metal-poor stars and new results on 6Li (2008)
Cayrel, Roger, Steffen, Matthias, Bonifacio, Piercarlo, Ludwig, Hans-Günter, Caffau, Elisabetta
Two problems are discussed here. The first one is the 0.4 dex discrepancy between the 7Li abundance derived from the spectra of metal-poor halo stars on the one hand, and from Big Bang...
Caffau, Elisabetta, Ludwig, Hans-G., Steffen, Matthias, Ayres, Thomas R., Bonifacio, Piercarlo, Cayrel, Roger, ...
The solar oxygen abundance has undergone a major downward revision in the last decade, the most noticeable one being the update including 3D hydrodynamical simulations to model the solar photosphere....
Caffau, Elisabetta, Ludwig, Hans-G., Steffen, Matthias, R. Ayres, Thomas, Bonifacio, Piercarlo, Cayrel, Roger, ...
The solar oxygen abundance has undergone a major downward revision in the last decade, the most noticeable one being the update including 3D hydrodynamical simulations to model the solar photosphere....
Caffau, Elisabetta, Ludwig, Hans-G., Steffen, Matthias, R. Ayres, Thomas, Bonifacio, Piercarlo, Cayrel, Roger, ...
The solar oxygen abundance has undergone a major downward revision in the last decade, the most noticeable one being the update including 3D hydrodynamical simulations to model the solar photosphere....
Overview of the lithium problem in metal-poor stars and new results on 6Li (2008)
Cayrel, Roger, Steffen, Matthias, Bonifacio, Piercarlo, Ludwig, Hans-Günter, Caffau, Elisabetta
Two problems are discussed here. The first one is the 0.4 dex discrepancy between the 7Li abundance derived from the spectra of metal-poor halo stars on the one hand, and from Big Bang...
Overview of the lithium problem in metal-poor stars and new results on 6Li (2008)
Cayrel, Roger, Steffen, Matthias, Bonifacio, Piercarlo, Ludwig, Hans-Günter, Caffau, Elisabetta
Two problems are discussed here. The first one is the 0.4 dex discrepancy between the 7Li abundance derived from the spectra of metal-poor halo stars on the one hand, and from Big Bang...
Line shift, line asymmetry, and the 6Li/7Li isotopic ratio determination (2007)
Cayrel, Roger, Steffen, Matthias, Chand, Hum, Bonifacio, Piercarlo, Spite, Monique, Spite, François, ...
Context: Line asymmetries are generated by convective Doppler shifts in stellar atmospheres, especially in metal-poor stars, where convective motions penetrate to higher atmospheric levels. Such...
Line shift, line asymmetry, and the 6Li/7Li isotopic ratio determination (2007)
Cayrel, Roger, Steffen, Matthias, Chand, Hum, Bonifacio, Piercarlo, Spite, Monique, Spite, François, ...
Context: Line asymmetries are generated by convective Doppler shifts in stellar atmospheres, especially in metal-poor stars, where convective motions penetrate to higher atmospheric levels. Such...
Line shift, line asymmetry, and the 6Li/7Li isotopic ratio determination (2007)
Cayrel, Roger, Steffen, Matthias, Chand, Hum, Bonifacio, Piercarlo, Spite, Monique, Spite, François, ...
Context: Line asymmetries are generated by convective Doppler shifts in stellar atmospheres, especially in metal-poor stars, where convective motions penetrate to higher atmospheric levels. Such...
Francois, Patrick, Matteucci, Francesca, Cayrel, Roger, Spite, Monique, Spite, Francois, Chiappini, Cristina
We computed the evolution of the abundances of O, Mg, Si, Ca, K, Ti, Sc, Ni, Mn, Co, Fe and Zn in the Milky Way. We made use of the most widely adopted nucleosynthesis calculations and compared the...
Lithium-6 : Evolution from Big Bang to Present (1998)
Vangioni-Flam, Elisabeth, Casse, Michel, Cayrel, Roger, Audouze, Jean, Spite, Monique, Spite, Francois
The primordial abundances of Deuterium, he4, and li7 are crucial to determination of the baryon density of the Universe in the framework of standard Big Bang nucleosynthesis (BBN). li6 which is only...
Thèses /--par Roger Cayrel. (1957)
"Premiere these: Observations et étude théorique du spectre de [zeta] Per. Deuxieme these: Travaux récents sur l'effet stark."
Observations et étude théorique du spectre de [zeta] per. (1957)
Paris. Sciences. Thèse. 1957.