Аннотация:Type II-plateau supernovae (SNe II-P) are fainter than Type Ia SNe and
thus have so far been observed only at z {\lt} 1. We introduce shock
breakout and propose a distant SN II-P survey at z {\gt} 1 with shock
breakout. The first observation of shock breakout from the rising phase
is reported in 2008. We first construct a theoretical model reproducing
the UV-optical light curves (LCs) of the first example and demonstrate
that the peak apparent g-band magnitude of the shock breakout would be m
$_{g}$ \~{} 26.4 mag if an identical SN occurs at a redshift z = 1,
which can be reached by 8m-class telescopes. Furthermore, we present LCs
of shock breakout of SN explosions with various main-sequence masses,
metallicities, and explosion energies and derive the observable SN rate
and reachable redshift as functions of filter and limiting magnitude by
taking into account an initial mass function, cosmic star formation
history, intergalactic absorption, and host galaxy extinction. The
g-band observable SN rate with limiting magnitude 27.5 mag is 3.3 SNe
deg$^{-2}$ day$^{-1}$ and half of them are located at z {\gt}
1.2.