Initial Stage of Star Formation

In frame of the hydrodynamics wh irlwind mechanis m of b ipolar outflow formation fro m disk system the data of observations of active starburst region a dense molecular cloud of Orion KL in H2O maser rad iation is analyzed. It is shown that the theory as a first appro ximation exp lains the basic observant laws of active region, structure accompanying protostar formation: a disk- a b ipolar outflo w, includ ing its mechanis m ejection and self-collimation, excitation maser radiat ion.