The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

Gamma-ray bursts (GRBs) display a bimodal duration distribution with a separation between
the short-and long-duration bursts at about 2 s. The progenitors of long GRBs have been …

Fast radio bursts, are astronomical radio flashes of unknown physical nature with durations
of milliseconds. Their dispersive arrival times suggest an extragalactic origin and imply radio …

Abstract The Ultra-Violet/Optical Telescope (UVOT) is one of three instruments flying aboard
the Swift Gamma-ray Observatory. It is designed to capture the early (∼ 1 min) UV and …

As a result of deprivation of oxygen (hypoxia) and nutrients, the growth and viability of cells
is reduced. Hypoxia-inducible factor (HIF)-1α helps to restore oxygen homeostasis by …

The discovery of afterglows associated with γ-ray bursts at X-ray, optical and radio
wavelengths and the measurement of the redshifts of some of these events, has established …

Observations show that at least some gamma-ray bursts (GRBs) happen simultaneously
with core-collapse supernovae (SNe), thus linking by a common thread nature's two …

The recent confirmation that at least some γ-ray bursts originate at cosmological distances,,,
suggests that the radiation from them could be used to probe some of the fundamental laws …

Long duration gamma-ray bursts (GRBs) originate from the core collapse of massive stars,
but the identity of the central engine remains elusive. Previous work has shown that rapidly …

The formation of the first stars and quasars marks the transformation of the universe from its
smooth initial state to its clumpy current state. In popular cosmological models, the first …