Charged surface of liquid hydrogen at near zero gravitation

The results of investigations of the evolution of the shape of the equipotentially charged surface of a liquid hydrogen layer in the external electric field in the case when the effect;ive gravitation acceleration is near to zero are presented. The reconstruction phenomenon - the formation of a solitary wave at the flat charged surface of liquid hydrogen at some critical value of the external electric field - has been studied under the conditions of a total screening of the electric field in the bulk: of a liquid by a surface charge. From the results obtained it follows that the transition of the flat surface into the reconstructed state is close to a second order phase transition. A voltage-temperature U-T phase diagram of the charged surface has been determined. The statement of a soft character of the transition has been confirmed also by the results of studies of the oscillations spectrum of the charged surface in electric fields lower and higher the critical value.