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- University of VirginiaUS50 papers
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7 papers · 1 filter
On the importance of special relativistic effects in modelling ultra-fast outflows
A. Luminari, F. Tombesi, E. Piconcelli +5
Outflows are observed in a variety of astrophysical sources. Remarkably, ultra-fast (), outflows in the UV and X-ray bands are often seen in AGNs. Depending on their en…
Exclusive electroproduction off the proton from low to high -t
S. Basnet, G. M. Huber, W. B. Li +49
Background: Measurements of exclusive meson production are a useful tool in the study of hadronic structure. In particular, one can discern the relevant degrees of freedom at diffe…
Multigrid in H(div) on Axisymmetric Domains
Minah Oh
In this paper, we will construct and analyze a multigrid algorithm that can be applied to weighted H(div)-problems on a two-dimensional domain. These problems arise after performin…
Constraining X-ray Coronal Size with Transverse Motion of AGN Ultra-Fast Outflows
Keigo Fukumura, Francesco Tombesi
One of the canonical physical properties of ultra-fast outflows (UFOs) seen in a diverse population of active galactic nuclei (AGNs) is its seemingly very broad width (i.e. $Δv \si…
Buried Black Hole Growth in IR-selected Mergers: New Results from Chandra
Ryan W. Pfeifle, Shobita Satyapal, Nathan J. Secrest +8
Observations and theoretical simulations suggest that a significant fraction of merger-triggered accretion onto supermassive black holes is highly obscured, particularly in late-st…
Astro2020 Science White Paper: Do Supermassive Black Hole Winds Impact Galaxy Evolution?
F. Tombesi, M. Cappi, F. Carrera +11
Powerful winds driven by supermassive black holes (SMBHs) are likely the main mechanism through which SMBHs regulate their own growth and influence the host galaxy evolution. Howev…