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Is there a UV/X-ray connection in IRAS 13224-3809?
D. J. K. Buisson, A. M. Lohfink, W. N. Alston +16
We present results from the optical, ultraviolet and X-ray monitoring of the NLS1 galaxy IRAS 13224-3809 taken with Swift and XMM-Newton during 2016. IRAS 13224-3809 is the most va…
Ultrafast Outflow in Tidal Disruption Event ASASSN-14li
E. Kara, L. Dai, C. S. Reynolds +1
At only 90 Mpc, ASASSN-14li is one of the nearest tidal disruption event (TDE) ever discovered, and because of this, it has been observed by several observatories at many wavelengt…
Ultrafast outflows disappear in high radiation fields
Ciro Pinto, William Alston, Michael L. Parker +8
Ultrafast outflows (UFOs) are the most extreme winds launched by active galactic nuclei (AGN) due to their mildly-relativistic speeds (~0.1-0.3c) and are thought to significantly c…
Revealing the ultra-fast outflow in IRAS 13224-3809 through spectral variability
Michael L. Parker, William N. Alston, Douglas J. K. Buisson +6
We present an analysis of the long-term X-ray variability of the extreme narrow-line Seyfert 1 (NLS1) galaxy IRAS 13224-3809 using principal component analysis (PCA) and fractional…
The high-Eddington NLS1 Ark 564 has the coolest corona
E. Kara, J. A. Garcia, A. Lohfink +4
Ark 564 is an archetypal Narrow line Seyfert 1 that has been well observed in soft X-rays from 0.3-10 keV, revealing a steep spectrum, strong soft excess, iron K emission line and…
X-ray Lags in PDS 456 Revealed by Suzaku Observations
Chia-Ying Chiang, E. M. Cackett, A. Zoghbi +5
X-ray reverberation lags from the vicinity of supermassive black holes have been detected in almost 30 AGN. The soft lag, which is the time delay between the hard and soft X-ray li…
The response of relativistic outflowing gas to the inner accretion disk of a black hole
Michael L. Parker, Ciro Pinto, Andrew C. Fabian +21
Active galactic nucleus (AGN) feedback is the process by which supermassive black holes in the centres of galaxies may moderate the growth of their hosts. Gas outflows from superma…
Properties of AGN coronae in the NuSTAR era II: hybrid plasma
A. C. Fabian, A. Lohfink, R. Belmont +2
The corona, a hot cloud of electrons close to the centre of the accretion disc, produces the hard X-ray power-law continuum commonly seen in luminous Active Galactic Nuclei (AGN).…
KYNREFREV - implementation of an X-ray reverberation model in XSPEC
M. D. Caballero-Garcia, M. Dovciak, I. Papadakis +4
We present briefly the first results obtained by the application of the KYNREFREV-reverberation model, which is ready for its use in XSPEC. This model computes the time dependent r…