We report Suzaku observations of the galaxy cluster Abell 1795 that extend to r _ { 200 } \approx 2 Mpc , the radius within which the mean cluster mass density is 200 times the cosmic critical density .
These observations are the first to probe the state of the intracluster medium in this object at r > 1.3 Mpc .
We sample two disjoint sectors in the cluster outskirts ( 1.3 < r < 1.9 Mpc ) and detect X-ray emission in only one of them to a limiting ( 3 \sigma ) soft X-ray surface brightness of B _ { 0.5 - 2 ~ { } keV } = 1.8 \times 10 ^ { -12 } erg s ^ { -1 } cm ^ { -2 } deg ^ { -2 } , a level less than 20 % of the cosmic X-ray background brightness .
We trace the run of temperature with radius at r > 0.4 Mpc and find that it falls relatively rapidly ( T _ { deprojected } \propto r ^ { -0.9 } ) , reaching a value about one third of its peak at the largest radius we can measure it .
Assuming the intracluster medium is in hydrostatic equilibrium and is polytropic , we find a polytropic index of \Gamma = 1.3 ^ { +0.3 } _ { -0.2 } and we estimate a mass of 4.1 ^ { +0.5 } _ { -0.3 } \times 10 ^ { 14 } M _ { \odot } within 1.3 Mpc , somewhat ( 2.7 \sigma ) lower than that reported by previous observers .
However , our observations provide evidence for departure from hydrostatic equilibrium at radii as small as r \sim 1.3 Mpc \approx r _ { 500 } in this apparently regular and symmetrical cluster .