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THE SPIN-DOWN OF PSR J0821-4300 AND PSR J1210-5226: CONFIRMATION OF CENTRAL COMPACT OBJECTS AS ANTI-MAGNETARS

Gotthelf, E V ; Halpern, J P ; Alford, J

The Astrophysical journal, 2013-03, Vol.765 (1), p.1-16 [Periódico revisado por pares]

United States

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Título:
THE SPIN-DOWN OF PSR J0821-4300 AND PSR J1210-5226: CONFIRMATION OF CENTRAL COMPACT OBJECTS AS ANTI-MAGNETARS
Autor: Gotthelf, E V ; Halpern, J P ; Alford, J
Assuntos: Approximation ; ASTRONOMY ; ASTROPHYSICS ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; CYCLOTRON RESONANCE ; Derivatives ; Harmonics ; INTERSTELLAR MAGNETIC FIELDS ; KEV RANGE ; MAGNETIC DIPOLES ; Magnetic fields ; NEUTRON STARS ; PHOTON EMISSION ; PROPER MOTION ; PULSARS ; ROTATION ; SPIN ; STAR EVOLUTION ; SUPERNOVA REMNANTS ; X-RAY SPECTRA ; XMM (spacecraft)
É parte de: The Astrophysical journal, 2013-03, Vol.765 (1), p.1-16
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Using XMM-Newton and Chandra, we measure period derivatives for the second and third known pulsars in the class of central compact objects (CCOs) in supernova remnants, proving that these young neutron stars have exceptionally weak dipole magnetic field components. For the 112 ms PSR J0821-4300 in Puppis A, P = (9.28[+ or -]0.36) x 10[sup -18]. Its proper motion, mu = 61[+ or -]9 mas yr[sup -1], was also measured using Chandra. Antipodal surface hot spots with different temperatures and areas are deduced from the X-ray spectrum and pulse profiles. A spectral feature, consisting of either an emission line at [approximate]0.75 keV or an absorption line at [approximate]0.46 keV, is modulated in strength with the rotation. This is also compatible with a cyclotron resonance interpretation of its prominent absorption line at 0.7 keV and its harmonics. The results deepen the mystery of the origin and evolution of CCOs.
Editor: United States
Idioma: Inglês

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THE SPIN-DOWN OF PSR J0821-4300 AND PSR J1210-5226: CONFIRMATION OF CENTRAL COMPACT OBJECTS AS ANTI-MAGNETARS

Gotthelf, E V ; Halpern, J P ; Alford, J

United States

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