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19952024
most citedThe Man Behind the Curtain: X-rays Drive the UV through NIR Variability in the 2013 AGN Outburst in NGC 2617

1.9k citations · 10.6k across the 159 of their papers we have counts for

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Showing 2011Show all

6 papers · 1 filter

astro-ph.HE2011★ 13 cited

Swift follow-up observations of unclassified ASCA sources

N. Degenaar, R. L. C. Starling, P. A. Evans +11

We present Swift follow-up observations of a sample of 35 unclassified faint X-ray sources drawn from the ASCA Galactic centre and plane surveys. Our short pointed XRT observations…

astro-ph.HE2011★ 4 cited

Analysing the Suzaku Spectra of the Broad-Line Seyfert 1 Galaxy CBS 126

Chia-Ying Chiang, R. C. Reis, A. C. Fabian +2

We analysed new simultaneous \emph{Suzaku} and \emph{Swift} data of the Broad Line Seyfert 1 (BLS1) galaxy CBS 126. A clear Fe emission line and a strong soft excess are present in…

astro-ph.HE2011★ 66 cited

Discovery of an Ultrasoft X-ray Transient Source in the 2XMM Catalog: a Tidal Disruption Event Candidate

Dacheng Lin, Eleazar R. Carrasco, Dirk Grupe +3

We have discovered an ultrasoft X-ray transient source, 2XMMi J184725.1-631724, which was detected serendipitously in two XMM-Newton observations in the direction of the center of…

astro-ph.CO2011

Statistical Analysis of an AGN sample with Simultaneous UV and X-ray Observations with Swift

Dirk Grupe

I report on the statistical analysis of a sample of about 100 AGN with simultaneous UV and X-ray observations with Swift. I found clear correlations between the X-ray spectral slop…

astro-ph.CO2011★ 23 cited

NGC 2207/IC 2163: A Grazing Encounter with Large Scale Shocks

Michele Kaufman, Dirk Grupe, Debra M. Elmegreen +3

Radio continuum, Spitzer infrared, optical and XMM-Newton X-ray and UVM2 observations are used to study large-scale shock fronts, young star complexes, and the galactic nuclei in t…

astro-ph.CO2011★ 88 cited

Supermassive black holes, pseudobulges, and the narrow-line Seyfert 1 galaxies

Smita Mathur, Dale Fields, Bradley M. Peterson +1

We present HST/ACS observations of ten galaxies that host narrow-line Seyfert 1 (NLS1) nuclei, believed to contain relatively smaller mass black holes accreting at high Eddington r…