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

O. Kargaltsev; G. G. Pavlov; G. P. Garmire

doi:10.1086/497897

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

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

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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 language	English (US)
Pages (from-to)	406-410
Number of pages	5
Journal	Astrophysical Journal
Volume	636
Issue number	1 I
DOIs	https://doi.org/10.1086/497897
State	Published - Jan 1 2006

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/497897

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title = "X-ray emission from the nearby PSR B1133+16 and other old pulsars",

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.",

author = "O. Kargaltsev and Pavlov, {G. G.} and Garmire, {G. P.}",

year = "2006",

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doi = "10.1086/497897",

language = "English (US)",

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journal = "Astrophysical Journal",

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TY - JOUR

T1 - X-ray emission from the nearby PSR B1133+16 and other old pulsars

AU - Kargaltsev, O.

AU - Pavlov, G. G.

AU - Garmire, G. P.

PY - 2006/1/1

Y1 - 2006/1/1

N2 - 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.

AB - 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.

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JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 I

ER -

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

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