51 citations · 234 across the 23 of their papers we have counts for
4 papers · 1 filter
Investigating scaling relations in X-ray reverberating AGN using symbolic regression
P. Thongkonsing, P. Chainakun, T. Worrakitpoonpon +1
Symbolic regression (SR) is a regression analysis based on genetic algorithms to search for mathematical expressions that best fit a given data set, by allowing the expressions the…
Coronal height constraint in IRAS 13224-3809 and 1H 0707-495 by the random forest regressor
N. Mankatwit, P. Chainakun, W. Luangtip +1
We develop a random forest regressor (RFR) machine learning model to trace the coronal evolution in two highly variable active galactic nuclei (AGNs) IRAS 13224-3809 and 1H 0707-49…
Revealing the intrinsic X-ray reverberation lags in IRAS 13224-3809 through the Granger causality test
P. Chainakun, N. Nakhonthong, W. Luangtip +1
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…
Extended Corona Models of X-ray Reverberation in the AGN 1H~0707-495 and IRAS 13224-3809
S. Hancock, A. J. Young, P. Chainakun
We fit a new vertically extended corona model to previously measured reverberation time lags observed by \emph{XMM-Newton} in two extremely variable Narrow Line Seyfert 1 Active Ga…