High energy neutrinos have been detected by IceCube , but their origin remains a mystery .
Determining the sources of this flux is a crucial first step towards multi-messenger studies .
In this work we systematically compare two classes of sources with the data : Galactic and extragalactic .
We assume that the neutrino sources are distributed according to a class of Galactic models .
We build a likelihood function on an event by event basis including energy , event topology , absorption , and direction information .
We present the probability that each high energy event with deposited energy E _ { dep } > 60 TeV in the HESE sample is Galactic , extragalactic , or background .
For Galactic models considered the Galactic fraction of the astrophysical flux has a best fit value of 1.3 \% and is < 9.5 \% at 90 % CL .
A zero Galactic flux is allowed at < 1 \sigma .