Harrison was born in Santa Monica, California but moved to Boulder, Colorado, at age three. She completed her undergraduate degree from Dartmouth College in 1985 with high honors in physics, and went to U.C. Berkeley for graduate studies, completing a PhD in 1993. She then went to Caltech as a Millikan Fellow, joining the faculty as an Assistant Professor of Physics in 1995. She became a full professor in 2005 and was appointed as the Benjamin M. Rosen Professor of Physics in 2013.
Research
Harrison's research combines the development of new instrumentation with observational work focused on high energy observations of black holes, neutron stars, gamma-ray bursts and supernova remnants. As the Principal Investigator for NuSTAR, the first focusing telescope in orbit operating in the high energy part of the X-ray spectrum (3 – 79 keV), she led an international team to propose, develop and launch the mission. The focal plane detectors and instrument electronics were built in Harrison's labs at Caltech. She led the science team executing the two-year baseline mission, which extended from August 2012 – August 2014.
Harrison's observational research showed that the afterglows of gamma-ray bursts exhibit breaks in their decay rate due to collimation of the ejecta.[3] Scientific highlights from the NuSTAR mission include mapping the radioactive debris in the Cassieopeia A supernova remnant to constrain the core collapse explosion mechanism,[4][5] measurement of the spin of supermassive[6] and stellar mass[7]black holes, the discovery of a magnetar in the Galactic Center,[8] and the discovery of an ultra luminous pulsar.[9][10]