منابع مشابه
High speed phase-resolved 2-d UBV photometry of the Crab pulsar
We report a phase-resolved photometric and morphological analysis of UBV data of the Crab pulsar obtained with the 2-d TRIFFID high speed optical photometer mounted on the Russian 6m telescope. By being able to accurately isolate the pulsar from the nebular background at an unprecedented temporal resolution (1 μs), the various light curve components were accurately fluxed via phase-resolved pho...
متن کاملPolarization of high-energy emissions from the Crab pulsar
We investigate polarization of high-energy emissions from the Crab pulsar in the frame work of the outer gap accelerator, following previous works of Cheng and coworkers. The recent version of the outer gap, which extends from inside the null charge surface to the light cylinder, is used for examining the synchrotron radiations from the secondary and the tertiary pairs, which are produced outsi...
متن کامل3 Chandra Phase - Resolved X - ray Spectroscopy of the Crab Pulsar
We present the first phase-resolved study of the X-ray spectral properties of the Crab Pulsar that covers all pulse phases. The superb angular resolution of the Chandra X-ray Observatory enables distinguishing the pulsar from the surrounding nebulosity, even at pulse minimum. Analysis of the pulse-averaged spectrum measures interstellar X-ray extinction due primarily to photoelectric absorption...
متن کاملHigh-Altitude Emission from Pulsar Slot Gaps: The Crab Pulsar
We present results of a 3D model of optical to γ-ray emission from the slot gap accelerator of a rotation-powered pulsar. Primary electrons accelerating to high-altitudes in the unscreened electric field of the slot gap reach radiationreaction limited Lorentz factors of ∼ 2× 10, while electron-positron pairs from lower-altitude cascades flow along field lines interior to the slot gap. The curva...
متن کاملVery high energy gamma radiation associated with the unshocked wind of the Crab pulsar
We show that the relativistic wind of the Crab pulsar, which is commonly thought to be invisible in the region upstream of the termination shock at r ≤ rS ∼ 0.1 pc, in fact could be directly observed through its inverse Compton (IC) γ-ray emission. This radiation is caused by illumination of the wind by low-frequency photons emitted by the pulsar, and consists of two, pulsed and unpulsed, compo...
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ژورنال
عنوان ژورنال: Advances in Space Research
سال: 2007
ISSN: 0273-1177
DOI: 10.1016/j.asr.2007.02.076