Abstract

Short-duration Gamma-ray bursts are supposed to be stellar explosions having T₉₀ duration less than 2 sec. The duration T₉₀ is defined as he time over which a burst emits from 5% of its total measured counts to 95%. These bursts were observed so far at comparatively lower redshifts (z < 1.5) and lower energies (E_γ , iso < few × 10⁵¹ erg) than those observed in case of long-duration gamma-ray bursts in general. Due to lack of associations of these bursts with the supernova collapse, studies were conducted to probe their origins and a new model called compact binary merger model was proposed with higher acceptance as compared to several other models. Study about these energetic cosmic events have far-reaching astrophysical implications recently. Considering the longitudinal advantage of India, the upcoming 3.6 m telescope at Devasthal is an unique facility to study these events in great detail.