activity
20142023
most citedA fast and long-lived outflow from the supermassive black hole in NGC 5548

247 citations · 429 across the 8 of their papers we have counts for

collaborators

8 papers

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.GA202317 cited

AGN STORM 2: II. Ultraviolet Observations of Mrk817 with the Cosmic Origins Spectrograph on the Hubble Space Telescope

Y. Homayouni, Gisella De Rosa, Rachel Plesha +62

We present reverberation mapping measurements for the prominent ultraviolet broad emission lines of the active galactic nucleus Mrk817 using 165 spectra obtained with the Cosmic Or…

astro-ph.GA202212 cited

VLT/UVES Observation of the Outflow in Quasar SDSS J1439-0106

Doyee Byun, Nahum Arav, Andrew Walker

We analyze the VLT/UVES spectrum of the quasar SDSS J143907.5-010616.7, retrieved from the UVES Spectral Quasar Absorption Database. We identify two outflow systems in the spectrum…

astro-ph.GA201619 cited

Multiwavelength campaign on Mrk 509 XV. A global modeling of the broad emission lines in the Optical, UV and X-ray bands

E. Costantini, G. Kriss, J. S. Kaastra +11

We model the broad emission lines present in the optical, UV and X-ray spectra of Mrk 509, a bright type 1 Seyfert galaxy. The broad lines were simultaneously observed during a lar…

astro-ph.GA201492 cited

Anatomy of the AGN in NGC 5548: II. The Spatial, Temporal and Physical Nature of the Outflow from HST/COS Observations

N. Arav, C. Chamberlain, G. A. Kriss +30

(Abridged) Our deep multiwavelength campaign on NGC 5548 revealed an unusually strong X-ray obscuration. The resulting dramatic decrease in incident ionizing flux allowed us to con…

astro-ph.HE201412 cited

Multiwavelength campaign on Mrk 509 XIV. Chandra HETGS spectra

J. S. Kaastra, J. Ebrero, N. Arav +14

We present in this paper the results of a 270 ks Chandra HETGS observation in the context of a large multiwavelength campaign on the Seyfert galaxy Mrk 509. The HETGS spectrum allo…