6Li in the Atmosphere of GJ 117
Abstract
We present high-resolution VLT UVES observations of the active K dwarf GJ 117. 6Li enhancement has been shown for energetic solar events, one chromospherically active binary, and several dwarf halo stars. Our analysis reveals the detection of 6Li on this source with 6Li/7Li = 0.030 +/- 0.010. We found no significant contribution from other lines, including Ti I, in the Li profile of GJ 117 and a template star of similar spectral type and metallicity. We discuss the possibility for 6Li production by spallation and find it to be consistent with the activity levels of the object.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 2005
- DOI:
- 10.1086/497688
- arXiv:
- arXiv:astro-ph/0509247
- Bibcode:
- 2005ApJ...632L.127C
- Keywords:
-
- Stars: Activity;
- Stars: Atmospheres;
- stars: individual (GJ 117);
- Stars: Late-Type;
- Astrophysics
- E-Print:
- 14 Pages, 5 figures, 1 Table