356 citations · 5.9k across the 169 of their papers we have counts for
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Spectropolarimetry of Compton-thin Seyfert 2s
S. L. Lumsden, D. M. Alexander, J. H. Hough
We present new spectropolarimetry of a sample of nearby Compton-thin Seyfert 2 galaxies (ie those with N_H<10^23 cm^-2). We show that the detection rate of scattered broad Halpha i…
Variability in black hole accretion discs
A. R. King, J. E. Pringle, R. G. West +1
Observations of accreting systems often show significant variability (10-20 percent of accretion luminosity) on timescales much longer than expected for the disc regions releasing…
Deep Searches for High Redshift Molecular Absorption
S. J. Curran, J. K. Webb, M. T. Murphy +1
Millimetre-band scans of the frequency space towards optically dim quasars is potentially a highly efficient method for detecting new high redshift molecular absorption systems. He…
Radio Cores of Bipolar Nebulae: Search for Collimated Winds
Ting-Hui Lee, Jeremy Lim, Sun Kwok
We present results of our search for collimated ionized winds in bipolar nebulae using the Very Large Array (VLA) and the Australia Telescope Compact Array (ATCA). Our search is mo…
Clues to the origin of metals in the Ly-alpha forest
S. Lopez, S. D'odorico, S. L. Ellison +1
We analyze the z=2 Ly-alpha and CIV forest along two adjacent lines-of-sight at high S/N and spectral resolution to assess the question of the origin of metals in the intergalactic…
Long-Term X-ray Spectral Variability in Seyfert 1 Galaxies
A. Markowitz, R. Edelson, S. Vaughan
Direct time-resolved spectral fitting has been performed on continuous RXTE monitoring of seven Seyfert 1 galaxies in order to study their broadband spectral variability and Fe K a…