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686 papers · 1 filter
Optical Spectral Properties of Swift BAT Hard X-ray Selected Active Galactic Nuclei Sources
Lisa M. Winter, Karen T. Lewis, Michael Koss +3
The Swift Burst Alert Telescope (BAT) survey of Active Galactic Nuclei (AGN) is providing an unprecedented view of local AGNs (<z> = 0.03) and their host galaxy properties. In this…
Entropy and growth rate of periodic points of algebraic Z^d-actions
Douglas Lind, Klaus Schmidt, Evgeny Verbitskiy
Expansive algebraic Z^d-actions corresponding to ideals are characterized by the property that the complex variety of the ideal is disjoint from the multiplicative unit torus. For…
PKS 2005-489 at VHE: Four Years of Monitoring with HESS and Simultaneous Multi-wavelength Observations
The HESS Collaboration, F. Acero
VHE observations of PKS 2005-489 were made with HESS from 2004 through 2007, together with three simultaneous multi-wavelength campaigns performed with XMM-Newton and RXTE in 2004…
Characterizing black hole variability with nonlinear methods: the case of the X-ray Nova 4U 1543-47
M. Gliozzi, C. Raeth, I. E. Papadakis +1
We investigate the possible nonlinear variability properties of the black hole X-ray nova 4U1543-47 to complement the temporal studies based on linear techniques, and to search for…
Substructure of the galaxy clusters in the REXCESS sample: observed statistics and comparison to numerical simulations
H. Boehringer, G. W. Pratt, M. Arnaud +6
We study the substructure statistics of a representative sample of galaxy clusters by means of two currently popular substructure characterisation methods, power ratios and centroi…
Single-Atom Cavity QED and Opto-Micromechanics
M. Wallquist, K. Hammerer, P. Zoller +6
In a recent publication [K. Hammerer et al., Phys. Rev. Lett. 103, 063005 (2009)] we have shown the possibility to achieve strong coupling of the quantized motion of a micron-sized…