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The solar wind: acceleration mechanisms, turbulence and heating

The study of mass loss from the Sun due to the solar wind relies principally on observations from space, both "remote-sensing", using instruments for UV and EUV
images of the solar disk and white light and UV coronographs, as well as via "in situ" measurements of characteristic parameters (velocity, magnetic and electric field, density, temperature). The measurements are necessarily supported by the analysis of theoretical models and by the comparison with the results of high precision numerical simulations.
The Italian community is constantly involved in all the phases of the above mentioned study, both in the development of instruments on-board satellites and numerical codes, as well as data analysis and theoretical modeling. The magnetic turbulence in the solar wind has a decisive influence on the processes that transport energetic particles into interplanetary space. In turn, the transport influences the acceleration processes, like stochastic acceleration and so-called "diffusive shock acceleration".

The National Institute for Astrophysics at the forefront of solar storm forecasting

Nov 13, 2023

The National Institute for Astrophysics at the forefront of solar storm forecasting The tool, developed by the INAF-Turin Astrophysical Observatory in collaboration with ALTEC and the University of Genoa, allowed accurate detection of the November 5 CME about 9 hours before the onset of the geomagnetic storm

GRB-SN Association within the Binary-Driven Hypernova Model

Sep 22, 2023

GRB-SN Association within the Binary-Driven Hypernova Model The GRB-SN association, probably the most constraining property of GRB theoretical models, is the subject of a new article by an ICRA-ICRANet collaboration, accepted for publication in The Astrophysical Journal

The polyhedric scientist and his sharp tones

Sep 08, 2023

Tomaso Belloni passed away suddenly on August 26th. He was a leading scientist of the Italian astrophysics community and was well known internationally for his work on compact objects in the X-ray and gamma-ray bands