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Constraining the ma...
Constraining the magnetic field geometry of the millisecond pulsar PSRJ0030+0451 from joint radio, thermal X-ray, and γ-ray emission
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- Pétri, Jérôme A. (author)
- Université de Strasbourg,University of Strasbourg,Centre national de la recherche scientifique (CNRS)
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- Guillot, Sebastien (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP),Centre national de la recherche scientifique (CNRS)
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- Guillemot, Lucas (author)
- Centre national de la recherche scientifique (CNRS),Universite d'Orleans,University of Orléans
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- Cognard, Ismaël (author)
- Universite d'Orleans,University of Orléans,Centre national de la recherche scientifique (CNRS)
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- Theureau, Gilles (author)
- Universite d'Orleans,University of Orléans,Centre national de la recherche scientifique (CNRS)
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- Griessmeier, Jean-Matthias (author)
- Centre national de la recherche scientifique (CNRS),Universite d'Orleans,University of Orléans
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- Bondonneau, L. (author)
- Universite d'Orleans,University of Orléans,PSL University Paris
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- González-Caniulef, Denis (author)
- Centre national de la recherche scientifique (CNRS),Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Webb, Natalie A. (author)
- Centre national de la recherche scientifique (CNRS),Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Jankowski, Fabian (author)
- Universite d'Orleans,University of Orléans,Centre national de la recherche scientifique (CNRS)
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- Kravtsov, Ihor P. (author)
- Sorbonne Université,Sorbonne University
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- Mckee, J. W. (author)
- University of Hull
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- Carozzi, Tobia, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Cecconi, Baptiste (author)
- Centre national de la recherche scientifique (CNRS),Universite d'Orleans,University of Orléans,PSL University Paris
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- Serylak, MacIej (author)
- University of the Western Cape
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- Zarka, Philippe (author)
- PSL University Paris
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Astronomy and Astrophysics. - 0004-6361 .- 1432-0746. ; 680
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https://doi.org/10.1...
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Abstract
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- Context. With the advent of multi-wavelength electromagnetic observations of neutron stars - spanning many decades in photon energies - from radio wavelengths up to X-rays and γ-rays, it has become possible to significantly constrain the geometry and the location of the associated emission regions. Aims. In this work, we use results from the modelling of thermal X-ray observations of PSR J0030+0451 from the Neutron Star Interior Composition Explorer (NICER) mission and phase-aligned radio and γ-ray pulse profiles to constrain the geometry of an off-centred dipole that is able to reproduce the light curves in these respective bands simultaneously. Methods. To this aim, we deduced a configuration with a simple dipole off-centred from the location of the centre of the thermal X-ray hot spots. We show that the geometry is compatible with independent constraints from radio and -ray pulsations only, leading to a fixed magnetic obliquity of α ≈ 75° and a line-of-sight inclination angle of ζ ≈ 54°. Results. We demonstrate that an off-centred dipole cannot be rejected by accounting for the thermal X-ray pulse profiles. Moreover, the crescent shape of one spot is interpreted as the consequence of a small-scale surface dipole on top of the large-scale off-centred dipole.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- magnetic fields
- stars
- gamma rays
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Pétri, Jérôme A.
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Guillot, Sebasti ...
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Guillemot, Lucas
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Cognard, Ismaël
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Theureau, Gilles
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Griessmeier, Jea ...
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show more...
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Bondonneau, L.
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González-Caniule ...
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Webb, Natalie A.
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Jankowski, Fabia ...
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Kravtsov, Ihor P ...
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Mckee, J. W.
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Carozzi, Tobia, ...
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Cecconi, Baptist ...
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Serylak, MacIej
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Zarka, Philippe
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show less...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Astronomy and As ...
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Chalmers University of Technology