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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…
Tomographic 3D-Modeling of the Solar Corona with FASR
Markus J. Aschwanden, David Alexander, Marc DeRosa
The "Frequency-Agile Solar Radiotelescope" (FASR) litteraly opens up a new dimension in addition to the 3D Euclidian geometry: the frequency dimension. The 3D geometry is degenerat…
The 2 Ms Chandra Deep Field-North: Moderate-luminosity AGNs and dusty starburst galaxies
D. M. Alexander, F. E. Bauer, W. N. Brandt +1
The 2 Ms Chandra Deep Field-North survey provides the deepest view of the Universe in the 0.5--8.0 keV X-ray band. In this brief review we investigate the diversity of X-ray select…
Very High Redshift X-ray Selected AGN in the Chandra Deep Field-North
A. J. Barger, L. L. Cowie, P. Capak +5
Deep Chandra X-ray exposures provide an efficient route for locating optically faint active galactic nuclei (AGN) at high redshifts. We use deep multicolor optical data to search f…