Revealing the intrinsic X-ray reverberation lags in IRAS 13224–3809 through the Granger causality test
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DOI: 10.1093/mnras/stad1416
Abstract: The Granger causality is an econometric test for determining whether one time series is useful for forecasting another one with a certain Granger lag. Here, the light curves in the 0.3–1 keV (reflection dominated, soft) and… read more here.
Keywords: iras 13224; granger; granger lags; reverberation lags ... See more keywords
The remarkable X-ray variability of IRAS 13224-3809 : I. The variability process
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DOI: 10.1093/mnras/sty2527
Abstract: We present a detailed X-ray timing analysis of the highly variable narrow-line Seyfert 1 (NLS1) galaxy IRAS 13224–3809. The source was recently monitored for 1.5 Ms with XMM–Newton, which, combined with 500 ks archival data, makes this… read more here.
Keywords: 13224 3809; source; variability process; variability ... See more keywords