Although some light curves can be roughly reproduced using certain simplified models

Although some light curves can be roughly reproduced using certain simplified models

While most astronomical transient sources have simple and consistent STK411-550G time structures (typically a rapid brightening followed by gradual fading, as in a nova or supernova), the lpg-899 light curves of gamma-ray bursts are extremely diverse and complex.No two gamma-ray burst light curves are identical,with large variation observed in BA9741F almost every property: the duration of observable emission can vary from milliseconds to tens of minutes, there can be a single peak or several individual subpulses, and individual peaks can AAT4618IGV-1.0-T1 be symmetric or with fast brightening and very slow fading. Some bursts are preceded by a precursor event, a weak burst that is then followed (after seconds to minutes of Ds1287 no emission at all) by the much more intense true bursting episode.[30] The light curves of some events have extremely chaotic and complicated profiles with almost no discernible patterns.