تقرير
Observations of Energetic High Magnetic Field Pulsars with the Fermi Large Area Telescope
| العنوان: | Observations of Energetic High Magnetic Field Pulsars with the Fermi Large Area Telescope |
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| المؤلفون: | Parent, D., Kerr, M., Hartog, P. R. Den, Baring, M. G., DeCesar, M. E., Espinoza, C. M., Gotthelf, E. V., Harding, A. K., Johnston, S., Kaspi, V. M., Livingstone, M., Romani, R. W., Stappers, B. W., Watters, K., Weltevrede, P., Abdo, A. A., Burgay, M., Camilo, F., Craig, H. A., Freire, P. C. C., Giordano, F., Guillemot, L., Hobbs, G., Keith, M., Kramer, M., Lyne, A. G., Manchester, R. N., Noutsos, A., Possenti, A., Smith, D. A. |
| سنة النشر: | 2011 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Astrophysics of Galaxies |
| الوصف: | 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. Comment: 13 pages, 6 figures. Accepted for publication in Astrophysical Journal |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/0004-637X/743/2/170 |
| URL الوصول: | http://arxiv.org/abs/1109.1590 |
| رقم الأكسشن: | edsarx.1109.1590 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/0004-637X/743/2/170 |
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