2023-10-15 12:22:54
A group of scientists from Argentina and Spain found evidence that there are gamma rays that come from young stars that are similar to the Sun. This is a discovery that opens the doors to better understand how the solar system was formed, which includes Earth and other planets.
Agostina Filócomo and Facundo Albacete-Colombo, who work in the Department of Research in Exact Sciences and Engineering, at the National University of Río Negro, in Viedma, were the first two authors and project leaders.
Enrique Mestre, Leonardo Pellizza, from the Faculty of Exact and Natural Sciences of the University of Buenos Aires, and Jorge Combi, from the National University of La Plata and the University of Jaén, in Spain, also collaborated.
The research was published in Monthly Notices of the Royal Astronomical Society.
What they found was that the T Tauri type stars can emit very high energy radiation, in gamma rays.
those stars They are so-called “low mass”, similar to the Sun when it was in its formation phase, that is, in the earliest phases of its evolution.
Around it, disks of gas and dust are observed, from which planetary systems can form, just as happened with the Sun. The discovery is of great importance since it reveals that the physical conditions that reigned in those times of formation of the system solar panels were not at all like the current ones. “We are observing the evolution of our star, the Sun, and the primitive astrophysical conditions in which the Earth must have formed,” Philocomo clarified.
The team studied sources of gamma radiation whose nature remained unknown, despite having been discovered more than a decade ago by the Fermi satellite of the American space agency NASA.
The research team showed that three of these sources, which are located in the star-forming region NGC 2071, actually correspond to the changing brightness of the same area.
There are 58 T Tauri type stars there, and no other known object that explains the gamma emission of these characteristics.
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