From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Raditz raises both of his arms up and charges two purple energy spheres. He then brings his hands forward and fires the energy spheres in the form of two energy waves at his opponent, inflicting a great amount of damage.
Dragon Ball Z
The Double Sunday is named in the Budokai video game series and is one of Raditz's attacks. It is colored yellow in this game.
It is named Daburu Enerugiiha (ダブル エネルギー波, Daburu Enerugiiha) in Dragon Ball Z: Sūpā Gokū Den: Kakusei Hen.