Heliospheric Tomography from IPS Data at 140 MHz

Wednesday, 17 December 2014
Julio Cesar Mejia-Ambriz1,2, Bernard V Jackson3, Americo Gonzalez-Esparza2 and Andrew Buffington1, (1)University of California San Diego, La Jolla, CA, United States, (2)Universidad Nacional Autonoma de Mexico, Mexico City, Mexico, (3)University of California San Diego, Center for Astrophysics and Space Science, La Jolla, CA, United States
Interplanetary scintillation (IPS) from radio telescopes provides data to study density and velocity evolution of the solar wind and heliospheric disturbances. A tomography program developed at the University of California, San Diego, makes 3D reconstructions and forecasts of the inner heliosphere dynamics from IPS results. For the first time we incorporate 140 MHz IPS results from the MEXican Array Radio Telescope (MEXART) into the tomography program. We show that MEXART data complement observations from other radio-systems located at different longitudes, thus providing more complete heliospheric coverage.