activity
20222025
most citedUncovering the geometry of the hot X-ray corona in the Seyfert galaxy NGC4151 with IXPE

86 citations · 289 across the 14 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2023

Variability as a predictor for the hard-to-soft state transition in GX 339-4

Matteo Lucchini, Marina Ten Have, Jingyi Wang +17

During the outbursts of black hole X-ray binaries (BHXRBs), their accretion flows transition through several states. The source luminosity rises in the hard state, dominated by non…

astro-ph.HE2023

AGN STORM 2. VI. Mapping Temperature Fluctuations in the Accretion Disk of Mrk 817

Jack M. M. Neustadt, Christopher S. Kochanek, John Montano +49

We fit the UV/optical lightcurves of the Seyfert 1 galaxy Mrk 817 to produce maps of the accretion disk temperature fluctuations resolved in time and radius. The maps are…

astro-ph.HE202332 cited

Revisiting UV/optical continuum time lags in AGN

E. S. Kammoun, L. Robin, I. E. Papadakis +2

In this paper, we present an updated version of our model (KYNXiltr) which considers thermal reverberation of a standard Novikov-Thorne accretion disc illuminated by an X-ray point…

astro-ph.HE202321 cited

A luminous dust-obscured Tidal Disruption Event candidate in a star forming galaxy at 42 Mpc

Christos Panagiotou, Kishalay De, Megan Masterson +11

While the vast majority of Tidal Disruption Events (TDEs) has been identified by wide-field sky surveys in the optical and X-ray bands, recent studies indicate that a considerable…

astro-ph.GA202386 cited

Uncovering the geometry of the hot X-ray corona in the Seyfert galaxy NGC4151 with IXPE

V. E. Gianolli, D. E. Kim, S. Bianchi +106

We present an X-ray spectro-polarimetric analysis of the bright Seyfert galaxy NGC4151. The source has been observed with the Imaging X-ray Polarimetry Explorer (IXPE) for 700 ks,…

astro-ph.HE202340 cited

UV/Optical disk reverberation lags despite a faint X-ray corona in the AGN Mrk 335

Erin Kara, Aaron J. Barth, Edward M. Cackett +37

We present the first results from a 100-day Swift, NICER and ground-based X-ray/UV/optical reverberation mapping campaign of the Narrow-Line Seyfert 1 Mrk 335, when it was in an un…