The Why & How of X-Ray Timing - HEASARC - NASA
The Why & How of X-Ray Timing - HEASARC - NASA The Why & How of X-Ray Timing - HEASARC - NASA
from heasarc.gsfc.nasa.gov
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12.07.2015
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Fourier AnalysisAnswers the question: how is the variability of a source distributed infrequency?• Long-timescalevariations appear inlow-frequencyspectral bins, shorttimescalevariationsin high-frequencybins• If time-domainsignal varies withnon-constantfrequency, spectralresponse is smearedover several bins
- Page 1 and 2: The Why & How ofX-Ray TimingZ. Arzo
- Page 3 and 4: Why should I be interested?• Rota
- Page 5 and 6: Sco X-1Accretion Science: QPOs from
- Page 7: BasicsA light curve (for each sourc
- Page 11 and 12: Fourier Transform & FFT• Given a
- Page 13 and 14: Estimating Variability for Proposal
- Page 15 and 16: Statistics: Solutions• Average ad
- Page 17 and 18: What To Do• Step 1. Create light
- Page 19 and 20: Step 3. Pulsar or eclipses found?Re
- Page 21 and 22: Rebinning to find a QPO: 4U1728-34
Fourier AnalysisAnswers the question: how is the variability <strong>of</strong> a source distributed infrequency?• Long-timescalevariations appear inlow-frequencyspectral bins, shorttimescalevariationsin high-frequencybins• If time-domainsignal varies withnon-constantfrequency, spectralresponse is smearedover several bins
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