Is there pasta in neutron stars?

The interior of neutron stars may contain a mantle made of very exotic neutron-proton clusters with unusual shapes such as rods or slabs collectively referred to as “nuclear pastas” coexisting with free nucleons and a charge neutralizing gas of electrons. Adding shell and pairing effects perturbativ...

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Bibliographic Details
Published in:EPJ Web of conferences 2022, Vol.274, p.7013
Main Authors: Chamel, Nicolas, Pearson, John Michael, Shchechilin, Nikolai
Format: Article
Language:English
Subjects:
Neutron stars
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Summary:The interior of neutron stars may contain a mantle made of very exotic neutron-proton clusters with unusual shapes such as rods or slabs collectively referred to as “nuclear pastas” coexisting with free nucleons and a charge neutralizing gas of electrons. Adding shell and pairing effects perturbatively and consistently to the fourth-order extended Thomas-Fermi method using the Brussels-Montreal functional BSk24, we find that nuclear pastas are much less abundant than previously thought from liquid-drop models, thus questioning their very existence in neutron stars.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202227407013