Numerical Fourieri Analysis of a GRB light curve

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SUMMARY

The discussion focuses on the application of numerical Fourier analysis to gamma-ray burst (GRB) light curves, specifically using discrete Fourier transforms on count rate data recorded every 64 ms. The user seeks guidance on processing a finite list of numbers to extract frequency information, as existing resources primarily address continuous functions and integrals. Laura, an experienced researcher in this field, offers to collaborate and provide further assistance.

PREREQUISITES
  • Understanding of gamma-ray burst (GRB) light curves
  • Familiarity with discrete Fourier transforms (DFT)
  • Basic knowledge of numerical analysis techniques
  • Experience with data visualization tools for graphing results
NEXT STEPS
  • Research the implementation of the Fast Fourier Transform (FFT) algorithm
  • Explore software tools like Python's NumPy library for numerical analysis
  • Learn about data preprocessing techniques for time-series analysis
  • Investigate visualization libraries such as Matplotlib for graphing frequency data
USEFUL FOR

Researchers and students in astrophysics, data analysts working with time-series data, and anyone interested in applying numerical methods to analyze gamma-ray burst phenomena.

valkyrie
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Hey everyone,
Ok, my ultimate aim is analysis of gamma ray burst light curves, so i have data which includes count rate in a certain energy range recorded every 64 ms. I would like to apply some kind of discrete, numerical Fourier transform to this long list of data, in order to produce a new graph that tells me something about frequencies present. I'm not at all sure how to go about doing this for a finite list of numbers, since all info i can find on Fourier transforms is in terms of integrals and functions...any help at all would be greatly appreciated!
 
Last edited:
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Hi Valkyrie,

Send me a private message. What you described is roughly what I do in my research. I need more information before I can help you out. Perhaps we can collaborate.

Best wishes,
Laura
 

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