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- University of Maryland, College ParkUS743 papers
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- Centre National de la Recherche ScientifiqueFR145 papers
- Center for Astrophysics Harvard & SmithsonianUS109 papers
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8 papers · 2 filters
GRB060218 as a Tidal Disruption of a White Dwarf by an Intermediate Mass Black Hole
Roman V. Shcherbakov, Asaf Pe'er, Christopher S. Reynolds +3
A highly unusual pair of a gamma-ray burst (GRB) GRB060218 and an associated supernova SN2006aj has puzzled theorists for years. A supernova shock breakout and a jet from a newborn…
The Closest Look at 1H0707-495: X-ray Reverberation Lags with 1.3 Ms of Data
E. Kara, A. C. Fabian, E. M. Cackett +4
Reverberation lags in AGN were first discovered in the NLS1 galaxy, 1H0707-495. We present a follow-up analysis using 1.3 Ms of data, which allows for the closest ever look at the…
The Black Hole Spin and Soft X-ray Excess of the Luminous Seyfert Galaxy Fairall 9
Anne M. Lohfink, Christopher S. Reynolds, Jon M. Miller +4
We present an analysis of all XMM-Newton and Suzaku X-ray spectra of the nearby luminous Seyfert galaxy Fairall 9. Confirming previous analyses, we find robust evidence for a broad…
Models of the Contribution of Blazars to the Anisotropy of the Extragalactic Diffuse Gamma-ray Background
J. Patrick Harding, Kevork N. Abazajian
We study the relation between the measured anisotropies in the extragalactic diffuse gamma-ray background (DGRB) and the DGRB spectral intensity, and their potential origin from th…
The Central Engine Structure of 3C120: Evidence for a Retrograde Black Hole or a Refilling Accretion Disk
Philip S. Cowperthwaite, Christopher S. Reynolds
The broad-line radio galaxy 3C120 is a powerful source of both X-ray and radio emission including superluminal jet outflows. We report on our reanalysis of 160 ks of Suzaku data ta…
A Monte Carlo Markov Chain based investigation of black hole spin in the active galaxy NGC3783
C. S. Reynolds, L. W. Brenneman, A. M. Lohfink +4
The analysis of relativistically broadened X-ray spectral features from the inner accretion disk provides a powerful tool for measuring the spin of supermassive black holes (SMBH)…