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Study of the optical to X-ray broad emission lines of Mrk 110
A. Juráňová, E. Costantini, L. Di Gesu +7
In order to shed light on the characteristics of the broad line region (BLR) in a narrow-line Seyfert 1 galaxy, we present an analysis of X-ray, UV, and optical spectroscopic obser…
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…
Time-dependent photoionization spectroscopy of the Seyfert galaxy NGC 3783
Liyi Gu, Jelle Kaastra, Daniele Rogantini +4
We present an investigation into the spectroscopic properties of non-equilibrium photoionization processes operating in a time-evolving mode. Through a quantitative comparison betw…
Density calculations of NGC 3783 warm absorbers using a time-dependent photoionization model
Chen Li, Jelle S. Kaastra, Liyi Gu +1
Outflowing wind as one type of AGN feedback, which involves noncollimated ionized winds prevalent in Seyfert-1 AGNs, impacts their host galaxy by carrying kinetic energy outwards.…
AGN STORM 2: V. Anomalous Behavior of the CIV Light Curve in Mrk 817
Y. Homayouni, Gerard A. Kriss, Gisella De Rosa +49
An intensive reverberation mapping campaign on the Seyfert 1 galaxy Mrk817 using the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) revealed significant vari…
Dimming of Continuum Captured in Mrk 841: New Clues on the Nature of the Soft X-ray Excess
Missagh Mehdipour, Gerard Kriss, Jelle Kaastra +2
We report on a remarkable change in the spectral energy distribution (SED) of Mrk 841, providing new insights on how the soft X-ray excess emission in active galactic nuclei (AGNs)…