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arXiv · 2101.05814

In-plasma study of opacity relevant for compact binary ejecta

Angelo Pidatella·Sergio Cristallo·Alessio Galatà·Marco La Cognata·Maria Mazzaglia·Albino Perego·Roberta Spartà·Aurora Tumino·Diego Vescovi·David Mascali
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Abstract

In the context of the INFN project PANDORA_Gr3 (Plasma for Astrophysics, Nuclear Decays Observation and Radiation for Archaeometry) and of multi-messenger astronomy, we propose a feasibility study for in-laboratory plasma's opacity investigation, in an environment resembling thermodynamic conditions typical of the ejecta of compact binary mergers containing at least a neutron star. We aim to advance knowledge on the physics of kilonovae, the electromagnetic transients following a merger, which are relevant for the study of the origin of heavy nuclei in the Universe produced via r-process nucleosynthesis. In this paper, we present preliminary results of numerical simulations for some physics cases considered in the light of a possible experimental setup for future in-laboratory opacity spectroscopic measurements.

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Angelo Pidatella, Sergio Cristallo, Alessio Galatà, Marco La Cognata, Maria Mazzaglia, Albino Perego, Roberta Spartà, Aurora Tumino, Diego Vescovi, David Mascali. 2021-01-14. In-plasma study of opacity relevant for compact binary ejecta. https://doi.org/10.1393/ncc%2Fi2021-21065-x

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