A NICER View of PSR J0030+0451: Evidence for a Global-scale Multipolar Magnetic Field
Recent modeling of Neutron Star Interior Composition Explorer observations of thermal X-ray pulsations from the surface of the isolated millisecond pulsar PSR J0030+0451 suggests that the hot emitting regions on the pulsar's surface are far from antipodal, which is at odds with the classical as...
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| Veröffentlicht in: | Astrophysical journal. Letters 2019-12, Vol.887 (1), p.L23 |
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| creator | Bilous, A. V. Watts, A. L. Harding, A. K. Riley, T. E. Arzoumanian, Z. Bogdanov, S. Gendreau, K. C. Ray, P. S. Guillot, S. Ho, W. C. G. Chakrabarty, D. |
| description | Recent modeling of Neutron Star Interior Composition Explorer observations of thermal X-ray pulsations from the surface of the isolated millisecond pulsar PSR J0030+0451 suggests that the hot emitting regions on the pulsar's surface are far from antipodal, which is at odds with the classical assumption that the magnetic field in the pulsar magnetosphere is predominantly that of a centered dipole. Here, we review these results and examine previous attempts to constrain the magnetospheric configuration of PSR J0030+0451. To the best of our knowledge, there is in fact no direct observational evidence that PSR J0030+0451's magnetic field is a centered dipole. Developing models of physically motivated, non-canonical magnetic field configurations and the currents that they can support poses a challenging task. However, such models may have profound implications for many aspects of pulsar research, including pulsar braking, estimates of birth velocities, and interpretations of multi-wavelength magnetospheric emission. |
| doi_str_mv | 10.3847/2041-8213/ab53e7 |
| format | Article |
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V. ; Watts, A. L. ; Harding, A. K. ; Riley, T. E. ; Arzoumanian, Z. ; Bogdanov, S. ; Gendreau, K. C. ; Ray, P. S. ; Guillot, S. ; Ho, W. C. G. ; Chakrabarty, D.</creator><creatorcontrib>Bilous, A. V. ; Watts, A. L. ; Harding, A. K. ; Riley, T. E. ; Arzoumanian, Z. ; Bogdanov, S. ; Gendreau, K. C. ; Ray, P. S. ; Guillot, S. ; Ho, W. C. G. ; Chakrabarty, D.</creatorcontrib><description>Recent modeling of Neutron Star Interior Composition Explorer observations of thermal X-ray pulsations from the surface of the isolated millisecond pulsar PSR J0030+0451 suggests that the hot emitting regions on the pulsar's surface are far from antipodal, which is at odds with the classical assumption that the magnetic field in the pulsar magnetosphere is predominantly that of a centered dipole. Here, we review these results and examine previous attempts to constrain the magnetospheric configuration of PSR J0030+0451. To the best of our knowledge, there is in fact no direct observational evidence that PSR J0030+0451's magnetic field is a centered dipole. Developing models of physically motivated, non-canonical magnetic field configurations and the currents that they can support poses a challenging task. 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Lett</addtitle><description>Recent modeling of Neutron Star Interior Composition Explorer observations of thermal X-ray pulsations from the surface of the isolated millisecond pulsar PSR J0030+0451 suggests that the hot emitting regions on the pulsar's surface are far from antipodal, which is at odds with the classical assumption that the magnetic field in the pulsar magnetosphere is predominantly that of a centered dipole. Here, we review these results and examine previous attempts to constrain the magnetospheric configuration of PSR J0030+0451. To the best of our knowledge, there is in fact no direct observational evidence that PSR J0030+0451's magnetic field is a centered dipole. Developing models of physically motivated, non-canonical magnetic field configurations and the currents that they can support poses a challenging task. 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| source | Institute of Physics Open Access Journal Titles |
| subjects | Astrophysics Braking Dipoles Lunar And Planetary Science And Exploration Magnetic field configurations Magnetic fields Millisecond pulsars Neutron stars Neutrons Physics Pulsar magnetospheres Rotation powered pulsars |
| title | A NICER View of PSR J0030+0451: Evidence for a Global-scale Multipolar Magnetic Field |
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