Because she considers "Boomer" a separate person, Sharon Agathon receives a new call sign: Athena.
This is a reference both to the ancient Greek god and to the character Athena in the original Battlestar Galactica series. Athena was Commander Adama's only daughter. She served as a bridge officer, although she also piloted a Viper in combat in the episode "Lost Planet of the Gods, Part 1" when most of Galactica's pilots were incapacitated by a deadly disease.
In Season 3, Admiral Adama treats Sharon Agathon almost like a daughter, an honor he previously bestowed upon Kara "Starbuck" Thrace.