Daily Image
10-12-2020
Today's colloquium: SunDish Project: Single-Dish Solar Imaging with INAF Radio Telescopes
| Submitter: | Alberto Pellizzoni (INAF, Osservatorio Astronomico di Cagliari) |
| Description: | The SunDish project is devoted to radio imaging and monitoring of the solar atmosphere at high radio frequencies (at present 18-26 GHz, up to 100 GHz in perspective) through single-dish observations with INAF radiotelescopes. Mapping of the brightness temperature of the solar atmosphere in the radio band reveals plasma processes mostly originating from free-free emission in the local thermodynamic equilibrium, providing a probe of physical conditions in a wide range of atmospheric layers. In particular, long-term diachronic observations of the solar disk in K-band represents an effective tool to characterise the vertical structure and physical conditions of the solar chromosphere both for quiet and active regions, during their evolution at different phases of the solar cycle. Within this context, the Medicina 32m and SRT 64m radiotescopes could have an important role in the international solar radio science panorama. After a first test campaign aimed at defining and optimising solar imaging requirements for the radio telescopes, the system is ready for systematic monitoring of the Sun to provide: |
| Copyright: | Alberto Pellizzoni |
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