MUNICH, Germany, Jan. 2 -- Astronomy and Astrophysics, a journal that says it features astronomy and astrophysics from the European Southern Observatory, published research articles on the following topics in its December 2023 edition:

* Relativistic electron beams accelerated by an interplanetary shock

* Source positions of an interplanetary type III radio burst and anisotropic radio-wave scattering

* Analysis of the first coronagraphic multi-band observat . . .

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