2021ApJ...912..105B

Query : 2021ApJ...912..105B

2021ApJ...912..105B - Astrophys. J., 912, 105-105 (2021/May-2)

Neutron tunneling: a new mechanism to power explosive phenomena in neutron stars, magnetars, and neutron star mergers.

BERTULANI C.A. and LOBATO R.V.

Abstract (from CDS):

Neutron tunneling between neutron-rich nuclei in inhomogeneous dense matter encountered in neutron star crusts can release enormous energy on a short timescale to power explosive phenomena in neutron stars. In this work, we clarify aspects of this process that can occur in the outer regions of neutron stars when oscillations or cataclysmic events increase the ambient density. We use a time-dependent Hartree-Fock-Bogoliubov formalism to determine the rate of neutron diffusion and find that large amounts of energy can be released rapidly. The roles of nuclear binding, two-body interaction, and pairing in neutron diffusion times are investigated. We consider a one-dimensional quantum diffusion model and extend our analysis to study the impact of diffusion in three dimensions. We find that these novel neutron transfer reactions can generate energy in the amount of ≃ 1040-1044 erg under suitable conditions and assumptions.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Neutron stars - Soft gamma-ray repeaters - Gamma-ray sources

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Sgr 1935+2154 * 19 34 55.68 +21 53 48.2           ~ 820 1

Query : 2021ApJ...912..105B

Basic data :
NAME Sgr 1935+2154 -- Star
Other object types: otypes_help 		* (), Psr (PSR)
ICRS coord. (ep=J2000) : 		19 34 55.68 +21 53 48.2 (X-ray) [ 2300 2300 0 ] E 2014ATel.6294....1C
FK4 coord. (ep=B1950 eq=1950) : 		19 32 46.46 +21 47 09.2 [ 2300 2300 0 ]
Gal coord. (ep=J2000) : 		057.24701 +00.81875 [ 2300 2300 0 ]
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Identifiers (3) :
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NAME Sgr 1935+2154 NAME Sgr J1935+2154 PSR J1935+2154

References (820 between 1850 and 2026) (Total 820)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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