We present a scenario to explain the lithium-rich phase which occurs on the red giant branch at the so-called bump in the luminosity function. The high transport coefficients required to enhance the surface lithium abundance are obtained in the framework of rotation-induced mixing thanks to the impulse of the important nuclear energy released in a lithium burning shell. Under certain conditions a lithium flash is triggered off. The enhanced mass loss rate due to the temporary increase of the stellar luminosity naturally accounts for a dust shell formation
Context. The prediction of the Planck-constrained primordial lithium abundance in the Universe is in...
Theoretical models of stellar evolution predict that most of the lithium inside a star is destroyed ...
Context. A small number of K-type giants on the red giant branch (RGB) is known to be very rich in l...
We present a scenario to explain the lithium-rich phase which occurs on the red giant branch at the ...
We present a critical analysis of the nature of the so-called Li-rich RGB stars. For a majority of t...
A few percent of red giants are enriched in Lithium with $A(\mathrm{Li}) > 1.5$. The evolutionary ph...
According to standard stellar evolution, lithium is destroyed throughout most of the evolution of lo...
Context: A small number of K-type giants on the red giant branch (RGB) is known to be very rich in l...
About 1% of giant stars have been shown to have large surface Li abundances, which is unexpected acc...
Although not predicted by standard stellar evolution, it is known that the surface abundance of ligh...
Lithium has long been known to be a good tracer of non-standard mixing processes occurring in stella...
We present an analysis of Li abundances in low mass stars (LMS) during the Red Giant Branch (RGB) an...
Although red giants deplete lithium on their surfaces, some giants are Li-rich. Intermediate-mass as...
The vast majority of stars with mass similar to that of the Sun are expected to destroy lithium (Li)...
Lithium is an excellent tracer of mixing in stars as it is destroyed (by nuclear reactions) at a tem...
Context. The prediction of the Planck-constrained primordial lithium abundance in the Universe is in...
Theoretical models of stellar evolution predict that most of the lithium inside a star is destroyed ...
Context. A small number of K-type giants on the red giant branch (RGB) is known to be very rich in l...
We present a scenario to explain the lithium-rich phase which occurs on the red giant branch at the ...
We present a critical analysis of the nature of the so-called Li-rich RGB stars. For a majority of t...
A few percent of red giants are enriched in Lithium with $A(\mathrm{Li}) > 1.5$. The evolutionary ph...
According to standard stellar evolution, lithium is destroyed throughout most of the evolution of lo...
Context: A small number of K-type giants on the red giant branch (RGB) is known to be very rich in l...
About 1% of giant stars have been shown to have large surface Li abundances, which is unexpected acc...
Although not predicted by standard stellar evolution, it is known that the surface abundance of ligh...
Lithium has long been known to be a good tracer of non-standard mixing processes occurring in stella...
We present an analysis of Li abundances in low mass stars (LMS) during the Red Giant Branch (RGB) an...
Although red giants deplete lithium on their surfaces, some giants are Li-rich. Intermediate-mass as...
The vast majority of stars with mass similar to that of the Sun are expected to destroy lithium (Li)...
Lithium is an excellent tracer of mixing in stars as it is destroyed (by nuclear reactions) at a tem...
Context. The prediction of the Planck-constrained primordial lithium abundance in the Universe is in...
Theoretical models of stellar evolution predict that most of the lithium inside a star is destroyed ...
Context. A small number of K-type giants on the red giant branch (RGB) is known to be very rich in l...