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pro vyhledávání: '"Hogg, J. Drew"'
We present a spectroscopic and imaging study of an abnormal active galactic nucleus (AGN), 2MASX J00423991+3017515. This AGN is newly identified in the hard X-rays by the Swift BAT All-Sky survey and found in an edge-on disk galaxy interacting with a
Externí odkaz:
http://arxiv.org/abs/2103.00012
Autor:
Hogg, J. Drew, Reynolds, Christopher
The evolution of the magnetic field from the large-scale dynamo is considered a central feature of the accretion disk around a black hole. The resulting low-frequency oscillations introduced from the growth and decay of the field strength, along with
Externí odkaz:
http://arxiv.org/abs/1805.05372
We study a truncated accretion disk using a well-resolved, semi-global magnetohydrodynamic simulation that is evolved for many dynamical times (6096 inner disk orbits). The spectral properties of hard state black hole binary systems and low-luminosit
Externí odkaz:
http://arxiv.org/abs/1801.05836
Truncated accretion disks are commonly invoked to explain the spectro-temporal variability from accreting black holes in both small systems, i.e. state transitions in galactic black hole binaries (GBHBs), and large systems, i.e. low-luminosity active
Externí odkaz:
http://arxiv.org/abs/1706.01489
Autor:
Hogg, J. Drew, Reynolds, Christopher
The broad-band variability of many accreting systems displays characteristic structure; log-normal flux distributions, RMS-flux relations, and long inter-band lags. These characteristics are usually interpreted as inward propagating fluctuations in a
Externí odkaz:
http://arxiv.org/abs/1512.05350
Autor:
Romatschke, Paul, Hogg, J. Drew
Using gauge/gravity duality, central ultrarelativistic nucleus-nucleus collisions are modelled as collisions of shock waves in five-dimensional asymptotic AdS space. For early times after the collision, it is possible to analytically match the metric
Externí odkaz:
http://arxiv.org/abs/1301.2635
The Swift Burst Alert Telescope (BAT) is discovering interesting new objects while monitoring the sky in the 14-195 keV band. Here we present the X-ray properties and spectral energy distributions for two unusual AGN sources. Both NVSS 193013+341047
Externí odkaz:
http://arxiv.org/abs/1204.4421
Publikováno v:
Monthly Notices of the Royal Astronomical Society; May2021, Vol. 503 Issue 2, p1688-1702, 15p
Akademický článek
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