On Strong Correlations between Timing Irregularities and Surface Magnetic Field of Rotation-Powered Pulsars  

作　　者：Evaristus Uzochukwu Iyida Christian Ikechukwu Eze Innocent Okwudili Eya Evaristus Uzochukwu Iyida;Christian Ikechukwu Eze;Innocent Okwudili Eya(Astronomy and Astrophysics Research Group, Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria;Department of Physics and Astronomy, Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria;Department of Science Laboratory Technology, Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria)

机构地区：[1]Astronomy and Astrophysics Research Group, Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria [2]Department of Physics and Astronomy, Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria [3]Department of Science Laboratory Technology, Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria

出　　处：《International Journal of Astronomy and Astrophysics》2020年第4期346-355,共10页天文学与天体物理学国际期刊（英文）

摘　　要：Using a large homogenous sample of Jodrell Bank Observatory (JBO) rotation-powered pulsars with derived pulsar parameter obtained from the Australian Telescope National Facility (ATNF) catalogue, we investigated the degree of statistical dependence of timing noise on surface magnetic field for our sample. The distributions of the timing irregularities parameters reveal a striking trend, in which pulsars with large timing noise parameters on average, have large surface magnetic field with up to 5 orders of magnitude. Regression analysis of the data reveals significant correlations (<em>r</em> ≥ 0.80) between timing noise parameters and the surface magnetic field. The implications of the observed significant relationships are discussed.Using a large homogenous sample of Jodrell Bank Observatory (JBO) rotation-powered pulsars with derived pulsar parameter obtained from the Australian Telescope National Facility (ATNF) catalogue, we investigated the degree of statistical dependence of timing noise on surface magnetic field for our sample. The distributions of the timing irregularities parameters reveal a striking trend, in which pulsars with large timing noise parameters on average, have large surface magnetic field with up to 5 orders of magnitude. Regression analysis of the data reveals significant correlations (<em>r</em> ≥ 0.80) between timing noise parameters and the surface magnetic field. The implications of the observed significant relationships are discussed.

关 键 词：Methods: Statistical Stars: Neutron Pulsars: General 

分 类 号：P14[天文地球—天体物理]