Selection of red giants according to membership or binarity

The file gK contains information on the membership or the duplicity of the red giants mostly deduced from a radial velocity survey. The command gk and same option -cl described in the previous item allows to select the red giants according to their membership or the information on binarity, according to the following syntax and keys:

gk cl -eq key

where the keys are:

M : member, without taking into account binarity,
F : non-member,
ms: member and single
sb: member and spectroscopic binary

Examples:

gk cl -eq M lists the red giants considered as members
gk cl -eq sb lists binary red giants