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X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT<i>z</i>> 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY
We report the X-ray detection of two z>1.4 infrared-selected galaxy clusters from the IRAC Shallow Cluster Survey (ISCS). We present new data from the Hubble Space Telescope and the W. M. Keck Observatory that spectroscopically confirm cluster ISCS J1432.4+3250 at z=1.49, the most distant of 18 confirmed z>1 clusters in …