The relationship between Class I and Class II methanol masers at high
  angular resolution
  We have used the Australia Telescope Compact Array (ATCA) to make the first
high resolution observations of a large sample of class~I methanol masers in
the 95-GHz ($8_0$--$7_1$A$^+$) transition. The target sources consist of a
statistically complete sample of 6.7-GHz class~II methanol masers with an
associated 95-GHz class~I methanol maser, enabling a detailed study of the
relationship between the two methanol maser classes at arcsecond angular
resolution. These sources have been previously observed at high resolution in
the 36- and 44-GHz transitions, allowing comparison between all three class~I
maser transitions. In total, 172 95-GHz maser components were detected across
the 32 target sources. We find that at high resolution, when considering
matched maser components, a 3:1 flux density ratio is observed between the 95-
and 44-GHz components, consistent with a number of previous lower angular
resolution studies. The 95-GHz maser components appear to be preferentially
located closer to the driving sources and this may indicate that this
transition is more strongly inverted nearby to background continuum sources. We
do not observe an elevated association rate between 95-GHz maser emission and
more evolved sources, as indicated by the presence of 12.2-GHz class~II masers.
We find that in the majority of cases where both class~I and class~II methanol
emission is observed, some component of the class~I emission is associated with
a likely outflow candidate.
