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- Centre National de la Recherche ScientifiqueFR339 papers
- University of St AndrewsGB330 papers
- University of GenevaCH310 papers
- University of WarwickGB303 papers
- University of LiègeBE259 papers
- European Southern ObservatoryCL252 papers
- University of CambridgeGB245 papers
- Max Planck Institute for AstronomyDE217 papers
- Space Telescope Science InstituteUS212 papers
- Instituto de Astrofísica de CanariasES210 papers
- Center for Astrophysics Harvard & SmithsonianUS204 papers
- Osservatorio Astronomico di PadovaIT192 papers
9 papers · 2 filters
Using principal component analysis to understand the variability of PDS 456
M. L. Parker, J. N. Reeves, G. A. Matzeu +2
We present a spectral-variability analysis of the low-redshift quasar PDS 456 using principal component analysis. In the XMM-Newton data, we find a strong peak in the first princip…
NuSTAR view of the black hole wind in the galaxy merger IRAS F111193257
F. Tombesi, S. Veilleux, M. Melendez +5
Galactic winds driven by active galactic nuclei (AGN) have been invoked to play a fundamental role in the co-evolution between supermassive black holes and their host galaxies. Fin…
Evidence for a radiatively driven disc-wind in PDS 456?
G. A. Matzeu, J. N. Reeves, V. Braito +5
We present a newly discovered correlation between the wind outflow velocity and the X-ray luminosity in the luminous () nearby ()…
A deep X-ray view of the bare AGN Ark120. IV. XMM-Newton and NuSTAR spectra dominated by two temperature (warm, hot) Comptonization processes
D. Porquet, J. N. Reeves, G. Matt +16
We perform an X-ray spectral analysis of the brightest and cleanest bare AGN known so far, Ark 120, in order to determine the process(es) at work in the vicinity of the SMBH. We pr…
A deep X-ray view of the bare AGN Ark 120. III. X-ray timing analysis and multiwavelength variability
Andrew Lobban, Delphine Porquet, James Reeves +3
We present the spectral/timing properties of the bare Seyfert galaxy Ark 120 through a deep ~420ks XMM-Newton campaign plus recent NuSTAR observations and a ~6-month Swift monitori…
The evolutionary roads leading to low effective spins, high black hole masses, and O1/O2 rates of LIGO/Virgo binary black holes
K. Belczynski, J. Klencki, C. E. Fields +31
All ten LIGO/Virgo binary black hole (BH-BH) coalescences reported from the O1/O2 runs have near zero effective spins. There are only three potential explanations of this fact. If…