THE INVESTIGATORS PROPOSE TO CONTINUE THEIR MONITORING OF 37 GAMMA-RAY AND RADIO BRIGHT ACTIVE GALACTIC NUCLEI WITH THE VLBA AND THE FERMI-LAT. THE TOTAL AND POLARIZED INTENSITY VLBA IMAGES AT 43 GHZ REVEAL EVENTS IN THE PARSEC-SCALE JET - SUPERLUMINAL KNOT EJECTIONS AND FLARES IN THE KNOTS AND CORE REGION - ASSOCIATED WITH FLARES AT GAMMA-RAY AND OTHER WAVEBANDS. TOGETHER WITH MULTI-WAVEBAND DATA THIS DETERMINES THE LOCATION OF THE FLARING SITE CRUCIAL TO OUR UNDERSTANDING OF THE PHYSICAL PROCESSES INVOLVED. CONTINUED OBSERVATIONS OF THE PREVIOUS SAMPLE WILL REVEAL ANY REPEATED PATTERNS AS WELL AS HIGHLIGHT DIFFERENCES BETWEEN RADIO AND GAMMA-RAY EVENTS THAT ARE RELATED AND THOSE THAT ARE NOT. THE IMAGES AND CALIBRATED VLBA DATA ARE PROVIDING AN EXTREMELY VALUABLE LEGACY DATASET.
$449,831FY2020National Aeronautics and Space AdministrationNASA
Trustees Of Boston University, Boston