The detection of five new fast radio bursts ( FRBs ) found in the High Time Resolution Universe high latitude survey is presented .
The rate implied is 6 ^ { +4 } _ { -3 } \times~ { } 10 ^ { 3 } ( 95 % ) FRBs sky ^ { -1 } day ^ { -1 } above a fluence of between 0.13 and 5.9 Jy ms for FRBs between 0.128 and 262 ms in duration .
One of these FRBs has a clear two-component profile , each component is similar to the known population of single component FRBs and are separated by 2.4 ( 4 ) ms. All the FRB components appear to be unresolved following deconvolution with a scattering tail and accounting for intra-channel smearing .
The two-component FRB also has the highest dispersion measure ( 1629 pc cm ^ { -3 } ) of any FRB to-date .
Many of the proposed models to explain FRBs use a single high energy event involving compact objects ( such as neutron star mergers ) and therefore can not easily explain a two-component FRB .
Models that are based on extreme versions of flaring , pulsing or orbital events however could produce multiple component profiles .
The compatibility of these models and the FRB rate implied by these detections is discussed .