New technique for dynamic burst position determination with high spatial definition/time resolution at a mm-wavelength

Details New technique for dynamic burst position determination with high spatial definition/time resolution at a mm-wavelength New technique for dynamic burst position determination with high spatial definition/time resolution at a mm-wavelength

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aipc..294..193c&link_type=abstract

AIP Conference Proceedings, Volume 294, pp. 193-198 (1994).

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Solar Electromagnetic Emission

Scientific paper

The position of solar burst maximum emission can be monitored with spatial resolution of few arcseconds, and and millisecond time resolution, simultaneously using a multifeed/multiradiometer front-end system placed at the focus of the 13.7-m Itapetinga radio-telescope. This new concept was developed in a cooperative program between the Institute of Applied Physics of the University of Bern, and the Center of Radio Astronomy and Space Applications, Sa~o Paulo. The five independent radiometer front-end operates at 48 GHz and produces five beams in space, partially overlapping to each other. Dynamic position images of the centroid of burst emission can be derived. Various events have been investigated, and the first results suggest that the fast time structures superimposed to the bursts' time profiles, may originate from distinct spatial positions in certain events, or close to a main generating stable source for other events. The dynamic images suggest apparent burst source displacements, or distinct and independent burst sites (for time resolved fast structures).

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