| We propose mapping the radio corona of the active stellar binary Algol at 6 epochs (3 at secondary eclipse, 3 at
quadrature) using the HSA at 15 GHz. By generating synthetic uv datasets and maps, we demonstrate that the
HSA is capable of mapping coronal structures with unprecedented dynamic range and angular resolution. The
significantly enhanced sensitivity and angular resolution of this array will allow us to address several outstanding
scientific questions for the first time, including whether the currently proposed coronal polar model is valid. By
observing at quadrature (maximum separation), we will test the recent suggestion that radio flares arise from a
B-star accretion disk. We will also combine a 'snapshot' mode using secondary eclipse to probe the location and
time evolution of radio structure in a 2-3 hour timescale. |
