RXTE Observations of MAXI J1836-194

RXTE observed the recently discovered X-ray transient MAXI J1836-194 (Atel #3611, #3613, #3614) beginning at 11:08:01 (UT) on August 31, 2011, for a total of 6 ksec of good exposure over two RXTE orbits. We detect the source at a count rate of approximately 140 cts/sec (1PCU), and variability is evident with the eye. A power spectral study shows significant flat-topped, band-limited noise breaking to a power-law below 5 Hz with evidence for a weak QPO at 0.5 Hz, above the break.