The habitability of an exoplanet depends on many factors .
One such factor is the impact of stellar eruptive events on nearby exoplanets .
Currently this is poorly constrained due to heavy reliance on solar scaling relationships and a lack of experimental evidence .
Potential impacts of Coronal Mass Ejections ( CMEs ) , which are a large eruption of magnetic field and plasma from a star , are space weather and atmospheric stripping .
A method for observing CMEs as they travel though the stellar atmosphere is the type II radio burst , and the new LOw Frequency ARray ( LOFAR ) provides a means for detection .
We report on 15 hours of observation of YZ Canis Minoris ( YZ CMi ) , a nearby M dwarf flare star , taken in LOFAR ’ s beam-formed observation mode for the purposes of measuring transient frequency-dependent low frequency radio emission .
The observations utilized Low-Band Antenna ( 10-90 MHz ) or High-Band Antenna ( 110-190 MHz ) for five three-hour observation periods .
In this data set , there were no confirmed type II events in this frequency range .
We explore the range of parameter space for type II bursts constrained by our observations Assuming the rate of shocks is a lower limit to the rate at which CMEs occur , no detections in a total of 15 hours of observation places a limit of \nu _ { typeII } < 0.0667 shocks/hr \leq \nu _ { CME } for YZ CMi due to the stochastic nature of the events and limits of observational sensitivity .
We propose a methodology to interpret jointly observed flares and CMEs which will provide greater constraints to CMEs and test the applicability of solar scaling relations .