In a previous work we studied the IRAS colours of known Li-rich red giants and showed that they have flux ratios $F_{12}/F_{25}$ and $F_{25}/F_{60}$ in well defined ranges. By using this result as a selection criterion, we prepared a list of 280 IRAS Point Source candidates to be Li-rich giant stars. Up to the present we have obtained spectra for $57\%$ of our target list. We identified five stars showing a strong LiI 670.079 nm line and six ones with a Li line of medium strength. Most of the candidates show features typical of normal giants having circumstellar dust, as indicated by their IRAS colours.
We report on photometry and high-resolution spectroscopy for IRAS 19285+0517. The spectral energy di...
We present WIYN/Hydra spectra of 34 red giant candidate members of NGC 188, which, together with WOC...
We have serendipitously identified the first lithium-rich giant star located close to the red giant ...
International audienceContext. Lithium is a fragile element, which is easily destroyed in the stella...
Aims. We report 20 new lithium-rich giants discovered within the Gaia-ESO Survey, including the firs...
Aims. We report 20 new lithium-rich giants discovered within the Gaia-ESO Survey, including the firs...
Context. Lithium is a fragile element, which is easily destroyed in the stellar interior. The existe...
Aims. We report 20 new lithium-rich giants discovered within the Gaia-ESO Survey, including the firs...
Aims. The aim of this work is to search for Li-rich giants in a sample of clusters where planets hav...
Context. Lithium-rich giant stars are rare and their existence poses a challenge to our understandin...
We report the discovery of eight lithium-rich field giants found in a high-resolution spectroscopic ...
Aims. We present lithium abundance determination for a sample of K giant stars in the Galactic bulge...
Current models of stellar evolution predict that stars more massive than $\sim6\:$M$_{\odot}$ should...
Context. Standard stellar evolution theory does not predict existence of Li-rich giant stars. Severa...
We report on photometry and high-resolution spectroscopy for IRAS 19285+0517. The spectral energy di...
We present WIYN/Hydra spectra of 34 red giant candidate members of NGC 188, which, together with WOC...
We have serendipitously identified the first lithium-rich giant star located close to the red giant ...
International audienceContext. Lithium is a fragile element, which is easily destroyed in the stella...
Aims. We report 20 new lithium-rich giants discovered within the Gaia-ESO Survey, including the firs...
Aims. We report 20 new lithium-rich giants discovered within the Gaia-ESO Survey, including the firs...
Context. Lithium is a fragile element, which is easily destroyed in the stellar interior. The existe...
Aims. We report 20 new lithium-rich giants discovered within the Gaia-ESO Survey, including the firs...
Aims. The aim of this work is to search for Li-rich giants in a sample of clusters where planets hav...
Context. Lithium-rich giant stars are rare and their existence poses a challenge to our understandin...
We report the discovery of eight lithium-rich field giants found in a high-resolution spectroscopic ...
Aims. We present lithium abundance determination for a sample of K giant stars in the Galactic bulge...
Current models of stellar evolution predict that stars more massive than $\sim6\:$M$_{\odot}$ should...
Context. Standard stellar evolution theory does not predict existence of Li-rich giant stars. Severa...
We report on photometry and high-resolution spectroscopy for IRAS 19285+0517. The spectral energy di...
We present WIYN/Hydra spectra of 34 red giant candidate members of NGC 188, which, together with WOC...
We have serendipitously identified the first lithium-rich giant star located close to the red giant ...