Lithium depletion boundary
Encyclopedia
The lithium depletion boundary (LDB) technique is a method proposed for dating open cluster
s based on a determination of the lithium
abundances of a cluster's stars whose masses are at about the hydrogen burning mass limit.
Open cluster
An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open clusters have been discovered within the Milky Way Galaxy, and many more are thought to exist...
s based on a determination of the lithium
Lithium
Lithium is a soft, silver-white metal that belongs to the alkali metal group of chemical elements. It is represented by the symbol Li, and it has the atomic number 3. Under standard conditions it is the lightest metal and the least dense solid element. Like all alkali metals, lithium is highly...
abundances of a cluster's stars whose masses are at about the hydrogen burning mass limit.