Opening the path to hard X-/soft gamma-ray focussing: The ASTENA-pathfinder mission

Virgilli, E. and Amati, L. and Auricchio, N. and Caroli, E. (2023) Opening the path to hard X-/soft gamma-ray focussing: The ASTENA-pathfinder mission. Il nuovo cimento C, 46 (4). pp. 1-4. ISSN 1826-9885

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Hard X-/soft gamma-ray astronomy is a crucial field for transient, nuclear and multimessenger astrophysics. However, the spatial localization, imaging capabilities and sensitivity of the measurements are strongly limited for the energy range >70keV. To overcome these limitations, we have proposed a mission concept, ASTENA, submitted to ESA for its program “Voyage 2050”. We will report on a pathfinder of ASTENA, that we intend to propose to ASI as an Italian mission with international participation. It will be based on one of the two instruments aboard ASTENA: a Laue lens with 20m focal length, able to focus hard X-rays in the 50–700keV passband into a 3-d position sensitive focal plane spectrometer. The combination of the focussing properties of the lens and of the localization properties of the detector will provide unparalleled imaging and spectroscopic capabilities, thus enabling studies of phenomena such as gamma-ray bursts afterglows, supernova explosions, positron annihilation lines and many more.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 15 Feb 2024 10:40
Last Modified: 15 Feb 2024 10:40

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