4 papers
Effect of the brightest gamma-ray burst (GRB 221009A) on low energy gamma-ray counts at sea level
Pranali Thakur, Gauri Datar, Geeta Vichare +1
A gamma-ray burst, named GRB 221009A, occurred on 9 October 2022 and is the brightest ever observed GRB, whose frequency is now estimated as once in 10,000 years. This GRB was repo…
Barometric Pressure Correction to Gamma-ray Observations and its Energy Dependence
Gauri Datar, Geeta Vichare, Selvaraj Chelliah
Cosmic rays (CRs) have been studied extensively in the last century to understand the processes in the universe as well as in the solar system. In today's satellite era, although m…
Causes of the Diurnal Variation observed in -ray Spectrum using NaI (Tl) Detector
Gauri Datar, Geeta Vichare, C. Selvaraj +2
Present paper studies the -ray spectrum observed using NaI(Tl) scintillation detector over a year. The paper reports the presence of a distinct diurnal pattern in the total numb…
Does Local Structure Within Shock-sheath and Magnetic Cloud Affect Cosmic Ray Decrease?
Anil Raghav, Zubair Shaikh, Ankush Bhaskar +2
The sudden short duration decrease in cosmic ray flux is known as Forbush decrease which is mainly caused by interplanetary disturbances. Generally accepted view is that the first…