Observations of Energetic High Magnetic Field Pulsars with the Fermi Large Area Telescope

Abstract

We report the detection of gamma-ray pulsations from the high-magnetic-field rotation-powered pulsar PSR J1119-6127 using data from the Fermi Large Area Telescope. The gamma-ray light curve of PSR J1119-6127 shows a single, wide peak offset from the radio peak by 0.43 pm 0.02 in phase. Spectral analysis suggests a power law of index 1.0 pm 0.3 with an energy cut-off at 0.8 pm 0.2 GeV. The first uncertainty is statistical and the second is systematic. We discuss the emission models of PSR J1119-6127 and demonstrate that despite the object's high surface magnetic field---near that of magnetars---the field strength and structure in the gamma-ray emitting zone are apparently similar to those of typical young pulsars. Additionally, we present upper limits on the \gam-ray pulsed emission for the magnetically active PSR J1846-0258 in the supernova remnant Kesteven 75 and two other energetic high-B pulsars, PSRs J1718-3718 and J1734-3333. We explore possible explanations for the non-detection of these three objects, including peculiarities in their emission geometry.

13 pages, 6 figures. Accepted for publication in Astrophysical Journal

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• Constraints on the Galactic Population of TEV Pulsar Wind Nebulae Using Fermi Large Area Telescope Observations
• A Magnetar-like Outburst from a High-B Radio Pulsar
• The soft gamma-ray pulsar population: an high-energy overview
• Magnetar-like X-ray Bursts from a Rotation Powered Pulsar, PSR J1119-6127
• The unusual glitch recoveries of the high magnetic field pulsar J1119$-$6127
• Deep X-ray Observations of the Young High-Magnetic-Field Radio Pulsar J1119-6127 and Supernova Remnant G292.2-0.5
• Post-Outburst Radio Observations of the High Magnetic Field Pulsar PSR J1119-6127
• The Braking Index of a Radio-quiet Gamma-ray Pulsar
• The Fermi LAT detection of magnetar-like pulsar PSR J1846-0258 at high-energy gamma-rays
• PSR J1119-6127 and its pulsar wind nebula following the magnetar-like bursts
• The 2016 outburst of PSR J1119-6127: cooling & a spin-down dominated glitch
• Electromagnetic wave transparency of X mode in strongly magnetized plasma
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• Mechanism of the X-ray and Soft Gamma-ray Emissions from High Magnetic Field Pulsar: PSR B1509-58
• Altitude Limits for Rotating Vector Model Fitting of Pulsar Polarization
• High energy gamma-ray emission from compact galactic sources in the context of observations with the next generation Cherenkov Telescope Arrays
• Discovery of GeV gamma-ray emission from PWN Kes 75 and PSR J1846-0258
• Modeling the non-recycled Fermi gamma-ray pulsar population
• A multi-wavelength study of PSR J1119$-$6127 after 2016 outburst
• Investigation of the High-Energy Emission from the Magnetar-like Pulsar PSR J1119-6127 after the 2016 Outburst
• Radiation Mechanism of the Soft Gamma-ray Pulsar PSR B1509-58