  We present results from a multi-wavelength analysis searching for multiple
AGN systems in nearby (z<0.077) triple galaxy mergers. Combining archival
Chandra, SDSS, WISE, and VLA observations, we quantify the rate of nearby
triple AGN, as well as investigate possible connections between SMBH accretion
and merger environments. Analyzing the multi-wavelength observations of 7
triple galaxy mergers, we find that 1 triple merger has a single AGN (NGC
3341); we discover, for the first time, 4 likely dual AGN (SDSS J1027+1749,
SDSS J1631+2352, SDSS J1708+2153, and SDSS J2356-1016); we confirm one triple
AGN system, SDSS J0849+1114; and 1 triple merger in our sample remains
ambiguous (SDSS J0858+1822). Analyzing the WISE data, we find a trend of
increasing N_H (associated with the primary AGN) as a function of increasing
W1-W2 color, reflecting that the motions of gas and dust are coupled in merging
environments, where large amount of both can be funneled into the active
central region during mergers. Additionally, we find that the one triple AGN
system in our sample has the highest levels of N_H and W1-W2 color, while the
dual AGN candidates all have lower levels; these results are consistent with
theoretical merger simulations that suggest higher levels of nuclear gas are
more likely to activate AGN in mergers.
