22 citations · 96 across the 15 of their papers we have counts for
8 papers · 1 filter
Principal Component Analysis of Ground Level Enhancement of Cosmic Ray Events
R. E. Ugwoke, A. A. Ubachukwu, J. O. Urama +3
We applied principal component analysis (PCA) to the study of five ground level enhancement (GLE) of cosmic ray (CR) events. The nature of the multivariate data involved makes PCA…
On the pulsar spin frequency derivatives and the glitch activity
Innocent O. Eya, Jibrin A. Alhassan, Evaristus U. Iyida +2
The number of sudden spin-ups in radio pulsars known as pulsar glitches has increased over the years. Though a consensus has not been reached with regards to the actual cause of th…
Multi-Frequency Study of Spectral Indices of BL Lacertae Objects and Flat Spectrum Radio Quasars
E. U. Iyida, F. C. Odo, A. E. Chukwude +1
We present statistical analyses of a large homogenous data sample of Fermi-detected blazars thoroughly studied in order to reassess the relationship between flat-spectrum radio qua…
Spectral Properties of Fermi Blazars and their Unification Schemes
E. U. Iyida, F. C. Odo, A. E. Chukwude +1
We use the distributions of spectral indices of a large homogenous sample of Fermi-detected blazars to re-investigate the relationship between flat spectrum radio quasars (FSRQs) a…
Microglitches in radio pulsars: the role of strange nuggets
Innocent Okwudili Eya, Evaristus Uzochukwu Iyida, Johnson Ozoemene +2
Strange Nuggets are believed to be among the relics of the early universe. They appear as dark matter due to their low charge-to-mass ratio. Their distribution is believed to be th…
Entrainment factor on individual glitch fractional moment of inertia
Innocent O. Eya, Johnson O. Urama, Augustine E. Chukwude
The superfluid in the inner crust of neutron star is assumed to be the reservoir of momentum released in pulsar glitch. Recently, due to crustal entrainment, it is debatable whethe…
On the distributions of pulsar glitch sizes and the inter-glitch time intervals
Innocent O. Eya, Johnson O. Urama, Augustine E. Chukwude
The glitch size, , inter-glitch time interval, and frequency of glitches in pulsars are key parameters in discussing glitch phenomena. In this paper, the glitch si…
On the Glitch Evolution of Pulsars
J. O. Urama, B. C. Joshi, A. E. Chukwude
Observations of pulsar glitches remain a powerful tool for studying the interior of neutron stars. Many of the observed glitch properties are shown to result from the evolution of…