Heating in Magnetar Crusts from Electron Captures

Autor: J. L. Zdunik, Lami Suleiman, Nicolas Chamel, Anthea Fantina, Pawel Haensel

Publikováno v: Universe, Vol 7, Iss 193, p 193 (2021)
Universe
Volume 7
Issue 6
Universe, 2021, 7 (6), pp.193. ⟨10.3390/universe7060193⟩
Universe, 7 (6

The persistent thermal luminosity of magnetars and their outbursts suggest the existence of some internal heat sources located in their outer crust. The compression of matter accompanying the decay of the magnetic field may trigger exothermic electro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72980f64f27d07c7821600c6b0ea0261
https://www.mdpi.com/2218-1997/7/6/193

Electron exchange and polarization effects on electron captures and neutron emissions by nuclei in white dwarfs and neutron stars

Autor: Anthea Fantina, Nicolas Chamel

Publikováno v: Physical Review D
Physical Review D, American Physical Society, 2016, 93, pp.063001. ⟨10.1103/PhysRevD.93.063001⟩
Physical Review D, 2016, 93, pp.063001. ⟨10.1103/PhysRevD.93.063001⟩

In dense stellar environments, nuclei may become unstable against electron captures and/or neutron emissions. These processes are of particular importance for determining the internal constitution of white-dwarf cores and neutron-star crusts. In this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::937bf98fad0ea4c01f5d91acbfc9809e

Uncertainties in the pasta-phase properties of catalysed neutron stars

Autor: T. Carreau, H. Dinh Thi, Francesca Gulminelli, Anthea Fantina

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2021, 654, pp.A114. ⟨10.1051/0004-6361/202141192⟩
Astron.Astrophys.
Astron.Astrophys., 2021, 654, pp.A114. ⟨10.1051/0004-6361/202141192⟩
Astronomy and Astrophysics
Astronomy and Astrophysics, EDP Sciences, 2021, 654, pp.A114. ⟨10.1051/0004-6361/202141192⟩

The interior of a neutron star is expected to exhibit different states of matter. In particular, complex non-spherical configurations known as `pasta' phases may exist at the highest densities in the inner crust, potentially having an impact on diffe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::822733df8046814a12979b74aaed0c49

The effect of the energy functional on the pasta-phase properties of catalysed neutron stars

Autor: Francesca Gulminelli, Anthea Fantina, H. Dinh Thi

Publikováno v: The European Physical Journal A
The European Physical Journal A, Springer, 2021, 57 (10), pp.296. ⟨10.1140/epja/s10050-021-00605-6⟩
Eur.Phys.J.A
Eur.Phys.J.A, 2021, 57 (10), pp.296. ⟨10.1140/epja/s10050-021-00605-6⟩

Nuclear pasta, that is an inhomogeneous distribution of nuclear matter characterised by non-spherical clustered structures, is expected to occur in a narrow spatial region at the bottom of the inner crust of neutron stars, but the width of the pasta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69947b35d96f1602b20108124dba425c

Experimental constraints on shallow heating in accreting neutron-star crusts

Autor: Pawel Haensel, J. L. Zdunik, Nicolas Chamel, Anthea Fantina

Publikováno v: Physical Review C, 102 (1
Physical Review C
Physical Review C, American Physical Society, 2020, 102 (1), pp.015804. ⟨10.1103/PhysRevC.102.015804⟩
Phys.Rev.C
Phys.Rev.C, 2020, 102 (1), pp.015804. ⟨10.1103/PhysRevC.102.015804⟩

The observed thermal relaxation of transiently accreting neutron stars during quiescence periods in low-mass X-ray binaries suggests the existence of unknown heat sources in the shallow layers of neutron-star crust. Making use of existing experimenta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7637dc64d3fd2818e03e88998650243b
https://doi.org/10.1103/physrevc.102.015804