The gravitational effects (precession of charge-less particles and deflection of light) in the gravitational field of a celestial body with magnetic charge an
Strong MgⅡ quasar absorption line systems provide us with a useful tool to understand the gas that plays an important role in galaxy formation. In this paper,
We use observed peak and total flux densities at 6cm and 20 cm to determine the spectral indices separately for the core and extended components of QSOs and gal
We examined the correlation between the ROSAT Hardness Ratio 1 and Count Rates eight Narrow-line Seyfert 1 Galaxies (NLS1s) and 14 Broad-line Seyfert 1 Galaxies
Sympathetic coronal mass ejections (CMEs) usually occur in different active regions connected by interconnecting magnetic loops, while homologous CMEs occur wit