The Gamma Ray Burst Monitor Accreting Pulsar Program. Fifteen years of monitoring the pulsed sky

Since 2008, the entire sky has been monitored for accreting pulsars using Fermi GBM data. Pulsars with spin frequencies in the 1 mHz to 2 Hz (to 16 Hz starting in 2013) are monitored and frequency histories and pulsed fluxes (8–50 keV and up to 1000 keV upon request) are published on a public website. A daily blind search for previously unknown or quiescent pulsars is also performed. Source specific analyses to track the evolving pulse frequencies of all detected pulsars results in time histories of the pulse profile, pulsed flux, and frequency of these sources. These measurements are crucial for investigating accretion column geometry, disk-magnetosphere interactions and determining fundamental system parameters such as the magnetic field, distance, mass fraction, orbital elements and orbital decay. We will present 15 years of observations and highlight some of our major achievements.