deletions | additions       diff --git a/h2o_megamasers.tex b/h2o_megamasers.tex  index 3ef70f4..0787e41 100644  --- a/h2o_megamasers.tex  +++ b/h2o_megamasers.tex 
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% \item focussed testing during flaring (as that gives the best S/N)  % \end{itemize}  %  \subsection{Connection between OH and H$_2$O?} %  \label{sec:oh_and_h2o} \begin{itemize}  \item wiggins+15, tarchi+12, wagner+13  \item % This section and the previous (\S\ref{sec:OH}) have argued that  OH megamaser seem mega-masers arise from starburst activity and H$_20$O mega-masers are inherently linked  to AGN activity. Are these two groups mutually exclusive or not? Since H$_2$O mega-masers are found on parsec-scales from the nucleus and OH mega-masers are distributed over 100-pc scales, it is certainly plausible that both types could  be uniquely associated with LIRGs produced in a single galaxy. Until recently, the connection was hindered due to a near mutual exclusion of survey targets for the respective species. \citet{darling2006} studied the optical spectra of the confirmed OH mega-maser hosts from their earlier study \citep{darling2002_paperIII}  and ULIRGs ($L_IR>10^11 L_sol$) -- ideal found that 33\% are starbursts, 42\% are LINER galaxies, and the remaining 25\% are Sy2 galaxies. Thus, there appears to be a significant overlap in potential mega-masing targets  for IR radiative pumping   \item Darling Paper III IR both  OH correlation and H$_2$O.  % \begin{itemize}  % \item wiggins+15, tarchi+12, wagner+13  %  \item Two cases connecting OH MM w/ AGN Mrk321 \& IIIZw 35 %  \item Mrk321 -- from VLBI, OH maps rotating molecular torus (klockner+03) 30-100 pc from nucleus %  \item IIIZw 35 -- pc-size OH clouds of edge-on torus (pihlstrom+01) - has diffuse and compact components in ring structure amplifying bkg continuum (parra+05) %  \item Arp 299 appears to show OH emission from the nucleus of IC 694 (baan 85); H2O MM emission as well (tarchi+07a) slight offset from OH in a nuclear outflow (Tarchi+11a) %  \item 5 other galaxies show masers in both, but are not MMs (includes NGC 253 and M82, nearby starbursts, Tarchi+11a) %  \item wiggins+15 searches for 22 Ghz emission in OH MM galaxies w/ GBT -- second detection in IIZw96, also a merger %  \item sample from tarchi+10 of OH emitters visible at GBT that had never been searched for 22 GHz emission -- 47 objects observed %  \item IIZw 96 shows high luminosity, narrow features in water; no high velocity shifts so not associated w/ a disk -- close resemblance to Arp 299 water line; features consistent with pumping from the AGN %  \item suggestive of a brief phase in galaxy mergers where maser coexistance is possible %  \item evidence also possibly shows exclusion for kilo-masers in OH MM hosts %  \item tentative detection of IRAS 15179+3956, another merging system %  \end{itemize}