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Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models

Viganò, D. and Rea, N. and Pons, Jose and Perna, R. and Aguilera, Deborah and Miralles, J.A. (2013) Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models. Monthly Notices of the Royal Astronomical Society, 434 (1), pp. 123-141. Oxford University Press. DOI: 10.1093/mnras/stt1008 ISBN ISSN 0035-8711 ISSN 0035-8711

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Official URL: http://adsabs.harvard.edu/abs/2013MNRAS.434..123V

Abstract

Observations of magnetars and some of the high magnetic field pulsars have shown that their thermal luminosity is systematically higher than that of classical radio-pulsars, thus confirming the idea that magnetic fields are involved in their X-ray emission. Here we present the results of 2D simulations of the fully coupled evolution of temperature and magnetic field in neutron stars, including the state-of-the-art kinetic coefficients and, for the first time, the important effect of the Hall term. After gathering and thoroughly re-analysing in a consistent way all the best available data on isolated, thermally emitting neutron stars, we compare our theoretical models to a data sample of 40 sources. We find that our evolutionary models can explain the phenomenological diversity of magnetars, high-B radio-pulsars, and isolated nearby neutron stars by only varying their initial magnetic field, mass and envelope composition. Nearly all sources appear to follow the expectations of the standard theoretical models. Finally, we discuss the expected outburst rates and the evolutionary links between different classes. Our results constitute a major step towards the grand unification of the isolated neutron star zoo.

Item URL in elib:https://elib.dlr.de/87817/
Document Type:Article
Title:Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Viganò, D.University of Alicante, SpainUNSPECIFIED
Rea, N.CSIC-IEEC, Barcelona, SpainUNSPECIFIED
Pons, JoseUniversity of Alicante, SpainUNSPECIFIED
Perna, R.University of Colorado, USUNSPECIFIED
Aguilera, Deborahdeborah.aguilera (at) dlr.deUNSPECIFIED
Miralles, J.A.University of Alicante, SpainUNSPECIFIED
Date:September 2013
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:434
DOI :10.1093/mnras/stt1008
Page Range:pp. 123-141
Publisher:Oxford University Press
ISSN:0035-8711
ISBN:ISSN 0035-8711
Status:Published
Keywords:neutron stars, magnetic field, X-ray emission
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):Vorhaben Quantensensorik
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Aguilera, Deborah
Deposited On:11 Feb 2014 12:05
Last Modified:06 Sep 2019 15:17

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