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Internal Heating in Magnetars: Role of Electron Captures

Authors :
Nicolas Chamel
Anthea Francesca Fantina
Lami Suleiman
Julian-Leszek Zdunik
Pawel Haensel
Grand Accélérateur National d'Ions Lourds (GANIL)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire Univers et Théories (LUTH (UMR_8102))
Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Source :
J.Phys.Conf.Ser., 44th Brazilian Workshop on Nuclear Physics, 44th Brazilian Workshop on Nuclear Physics, Nov 2021, Online, Brazil. pp.012029, ⟨10.1088/1742-6596/2340/1/012029⟩
Publication Year :
2022
Publisher :
arXiv, 2022.

Abstract

The role of electron captures by nuclei in the shallow heating of magnetars is further investigated using both nuclear measurements and the theoretical atomic mass table HFB-27. Starting from the composition of the outer crust in full equilibrium, we have calculated the onset of electron captures and the heat released due to the slow decay of the magnetic field. Numerical results are found to be similar to those previously obtained with the HFB-24 atomic mass model and are consistent with neutron-star cooling data.<br />Comment: 6 pages, 1 figure. Contribution to the proceedings of the XLIV Brazilian Workshop on Nuclear Physics

Details

Database :
OpenAIRE
Journal :
J.Phys.Conf.Ser., 44th Brazilian Workshop on Nuclear Physics, 44th Brazilian Workshop on Nuclear Physics, Nov 2021, Online, Brazil. pp.012029, ⟨10.1088/1742-6596/2340/1/012029⟩
Accession number :
edsair.doi.dedup.....4d355aab3838d7e4302d470c21653843
Full Text :
https://doi.org/10.48550/arxiv.2210.02790