680 citations
- GSI Helmholtz Centre for Heavy Ion ResearchDE606 papers
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- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT586 papers
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15 papers · 1 filter
An infrared echo from a circumstellar disk in the hydrogen- and helium-poor SN 2024aecx
Samaporn Tinyanont, Kittipong Wangnok, Jennifer E. Andrews +34
We present near-infrared (NIR) spectroscopy of the hydrogen- and helium-poor (Type Ic) supernova (SN) 2024aecx, which displays a strong NIR excess emerging 32 days post peak. SN 20…
Large Cold Dust Reservoir Revealed in Transitional SN Ib 2014C by James Webb Space Telescope Mid-Infrared Spectroscopy
Samaporn Tinyanont, Ori D. Fox, Melissa Shahbandeh +32
Supernova (SN) 2014C is a rare transitional event that exploded as a hydrogen-poor, helium-rich Type Ib SN and subsequently interacted with a hydrogen-rich circumstellar medium (CS…
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…
Mapping the X-ray corona evolution of IRAS 13224-3809 with the power spectral density
Poemwai Chainakun, Wasuthep Luangtip, Jiachen Jiang +1
We develop the power spectral density (PSD) model to explain the nature of the X-ray variability in IRAS 13224-3809, including the full effects of the X-ray reverberation due to th…