2.1k citations · 21.4k across the 197 of their papers we have counts for
8 papers · 1 filter
The High-Velocity Outflow of PG 1211+143: An Unbiased View Based on Several Observations
Shai Kaspi, Ehud Behar
We present and discuss high-resolution grating spectra of the quasar PG1211+143 obtained over three years. Based on an early observation from 2001, we find an outflow component of…
The High-Velocity Outflow of PG1211+143 May Not be That Fast
Shai Kaspi, Ehud Behar
We analyze the X-ray spectrum of the quasar PG1211+143 observed with the CCD and grating spectrometers on board XMM-Newton. Using an ion by ion fitting model we find an outflow com…
Is The Fe M-shell Absorber Part of The Outflow in Active Galactic Nuclei?
Tomer Holczer, Ehud Behar, Shai Kaspi
The X-ray emission of many active galactic nuclei (AGNs) is absorbed between 15 and 17 Angstrom by means of unresolved (inner-shell) transition arrays (UTAs) of Fe M-shell ions. Th…
The Ionized Gas and Nuclear Environment in NGC 3783 V. Variability and Modeling of the Intrinsic Ultraviolet Absorption
J. R. Gabel, S. B. Kraemer, D. M. Crenshaw +13
We present results on the location, physical conditions, and geometry of the outflow in the Seyfert 1 galaxy NGC 3783 from a study of the variable intrinsic UV absorption. Based on…
Multiwavelength Monitoring of the Dwarf Seyfert 1 Galaxy NGC 4395. I. A Reverberation-Based Measurement of the Black Hole Mass
Bradley M. Peterson, Misty C. Bentz, Louis-Benoit Desroches +8
A reverberation-mapping program on NGC 4395, the least-luminous known Seyfert 1 galaxy, undertaken with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope, yiel…
XMM-Newton Spectroscopy of the Starburst Dominated Ultra Luminous Infrared Galaxy NGC 6240
Hagai Netzer, Doron Lemze, Shai Kaspi +5
We present new XMM-Newton observation of the Ultra Luminous Infrared Galaxy (ULIRG) NGC 6240. We analyze the reflecting grating spectrometer (RGS) data, and data from the other ins…