X-ray emission from the nearby PSR B1133+16 and other old pulsars

O. Kargaltsev, George Pavlov, G. P. Garmire

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We detected a nearby (d ≃ 360 pc), old (τ ≃ 5Myr) pulsar B 1133+16 with Chandra. The observed pulsar's flux is (0.8 ± 0.2) × 10-14 ergs cm-2 s-1 in the 0.5-8 keV band. Because of the small number of counts detected, the spectrum can be described by various models. A power-law fit of the spectrum gives a photon index Γ ≈ 2.5 and an isotropic luminosity of 1.4 × 1029 ergs s -1 in the 0.5-8 keV band, which is about 1.6 × 10-3 of the spin-down power Ė. The spectrum can also be fitted by a blackbody model with a temperature of ≈2.8 MK and a projected emitting area of ∼500 m2, possibly a hot polar cap. The X-ray properties of PSR B1133+16 are similar to those of other old pulsars observed in X-rays, particularly the drifting pulsar B0943+10.

Original languageEnglish (US)
Pages (from-to)406-410
Number of pages5
JournalAstrophysical Journal
Volume636
Issue number1 I
DOIs
StatePublished - Jan 1 2006

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pulsars
erg
x rays
polar caps
power law
luminosity
photons
temperature
index

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Kargaltsev, O. ; Pavlov, George ; Garmire, G. P. / X-ray emission from the nearby PSR B1133+16 and other old pulsars. In: Astrophysical Journal. 2006 ; Vol. 636, No. 1 I. pp. 406-410.
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X-ray emission from the nearby PSR B1133+16 and other old pulsars. / Kargaltsev, O.; Pavlov, George; Garmire, G. P.

In: Astrophysical Journal, Vol. 636, No. 1 I, 01.01.2006, p. 406-410.

Research output: Contribution to journalArticle

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