Temporal and Spectral Properties of GRBs
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  • Temporal and Spectral Properties of GRBs

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SABANCI ÜNİVERSİTESİ

Physics Seminar

Speaker :       Prof. Kalvir Dhuga (George Washington University)

Title :         Temporal and Spectral Properties of GRBs

Date/Time:     November 28th, Wednesday @ 14:40-15:30

Place:         SUNUM building, room G111


Abstract:

The exact nature of GRB progenitors (and associated radiation mechanisms)
is still unknown and, as such, studies of GRBs are important research endeavors.
We aim to characterize the observed variability of the prompt emission of GRBs
over a large energy range via analysis of spectral lags and other temporal
properties such as the minimum characteristic timescale that distinguishes
scaling regions from regions of intrinsic noise in GRB samples taken from both
the Fermi and Swift databases. Furthermore, we aim to compare and contrast some
of these properties with those observed in GRBs that exhibit X-ray flaring events
with the aim of probing possible connections between the prompt emission and the
early afterglow. The variability is extracted by using tools that are based on
Fourier and Wavelet techniques. Existing relations such as the lag-luminosity
and the frequency -luminosity will be discussed.


contact: Ersin Gogus, ersing@sabanciuniv.edu
              Inanc Adagideli, adagideli@sabanciuniv.edu