Message-Id: <4.2.0.58.20030512132510.00950100@urap7.gsfc.nasa.gov> X-Sender: hess@urap7.gsfc.nasa.gov X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Mon, 12 May 2003 13:26:54 -0400 To: hess@urap8.gsfc.nasa.gov From: Roger A Hess Subject: Gary abstract Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Title: The FASR/SIRA Connection Author: Dale E. Gary, NJIT Abstract: The Frequency Agile Solar Radiotelescope (FASR) and the Solar Imaging Radio Array (SIRA) are closely complementary, given their similar mission to do imaging spectroscopy of the Sun, and their adjoining but non-overlapping frequency ranges. FASR covers solar phenomena from the chromosphere out to about 2 solar radii, while SIRA takes over at about 2.5 solar radii. Thus, FASR will image the solar origins of the disturbances mapped by SIRA. One of the goals of SIRA, to determine whether particle acceleration in different instances originates at the Sun or higher in the corona and interplanetary space, is clearly going to require excellent coverage of the regions near the Sun at high resolution and high sensitivity. This is how FASR will benefit the SIRA mission, by providing the coronal structure and particle acceleration diagnostics at the range of heights not covered by SIRA. In addition, SIRA will benefit the FASR mission in providing continuity of coverage of events as they move outward beyond the range of FASR's view. This talk gives a basic description of FASR and its science goals, and then discusses several specific areas where FASR/SIRA synergy can be foreseen. These include mapping the trajectories of electron beams from their acceleration site to the Earth, and the simultaneous imaging of radio emission from shocks (type II emission) and CMEs. We note that the potential for new, unforeseen discoveries is also great for joint observations from both instruments. This work is supported by the National Science Foundation under Grant No. 0138317 to New Jersey Institute of Technology.