Observations show that Type Ia supernovae (SNe Ia) are dimmer than expected from a matter dominated Universe. It has been suggested that this observed phenomeno
We have obtained deep J and Ks-band images centered on a bright radio quiet QSO UM 402(zem= 2.856) using the IRCS camera and adaptive optics systems that are pa
The intensity-time profiles of solar proton events(SPEs) are grouped into three types in the present study. The Type-I means that the intensity-time profile of
A model of a cloud formed by massive strings is used as a source of Bianchi type II cases. We assume that the expansion (θ) in the model is proportional to the
With tremendous advances in modem techniques, Einstein's general rela- tivity has become an inevitable part of deep space missions. We investigate the rela- tivi