NICER Detects a Soft X-ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09

Peter Bult, Diego Altamirano, Zaven Arzoumanian +16

We report on the detection of a kilohertz quasi-periodic oscillation (QPO) with the Neutron Star Interior Composition Explorer (NICER). Analyzing approximately 165 ks of NICER expo…