A deep study of the high-energy transient sky

Journal
EXPERIMENTAL ASTRONOMY
Date Issued
2021
Author(s)
Guidorzi, C.
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Frontera, F.
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Mundell, C. G.
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Virgilli, E.
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Rosati, P.
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Kobayashi, S.
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Fryer, C.
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Margutti, R.
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Martone, R.
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Brandt, S.
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Curado da Silva, R.
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Laurent, P.
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Mochkovitch, R.
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Bozzo, E.
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Burderi, L.
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Di Salvo, T.
DOI
10.1007/s10686-021-09725-9
Abstract
The coming decades will establish the exploration of the gravitational wave (GW) Universe over a broad frequency range by ground and space interferometers. Meanwhile, wide-field, high-cadence and sensitive surveys will span the electromagnetic spectrum from radio all the way up to TeV, as well as the high-energy neutrino window. Among the numerous classes of transients, γ-ray bursts (GRBs) have direct links with most of the hot topics that will be addressed, such as the strong gravity regime, relativistic shocks, particle acceleration processes, equation of state of matter at nuclear density, and nucleosynthesis of heavy elements, just to mention a few. Other recently discovered classes of transients that are observed throughout cosmological distances include fast radio bursts (FRBs), fast blue optical transients (FBOTs), and other unidentified high-energy transients. Here we discuss how these topics can be addressed by a mission called ASTENA (Advanced Surveyor of Transient Events and Nuclear Astrophysics, see Frontera et al. 18). Its payload combines two instruments: (i) an array of wide-field monitors with imaging, spectroscopic, and polarimetric capabilities (WFM-IS); (ii) a narrow field telescope (NFT) based on a Laue lens operating in the 50-600 keV range with unprecedented angular resolution, polarimetric capabilities, and sensitivity.
Volume
51
Issue
3
Start page
1203
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