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Length Scales and Turbulent Properties of Magnetic Fields in Simulated Galaxy Clusters
Hilary Egan, Brian W. O'Shea, Eric Hallman +5
Additional physics beyond standard hydrodynamics is needed to fully model the intracluster medium (ICM); however, as we move to more sophisticated models, it is important to consid…
Cosmological MHD Simulations of Galaxy Cluster Radio Relics: Insights and Warnings for Observations
Samuel W. Skillman, Hao Xu, Eric J. Hallman +5
Non-thermal radio emission from cosmic ray electrons in the vicinity of merging galaxy clusters is an important tracer of cluster merger activity, and is the result of complex phys…
Supermassive Seeds for Supermassive Black Holes
Jarrett L. Johnson, Daniel J. Whalen, Hui Li +1
Recent observations of quasars powered by supermassive black holes (SMBHs) out to z > 7 constrain both the initial seed masses and the growth of the most massive black holes (BHs)…
Comparisons of Cosmological MHD Galaxy Cluster Simulations to Radio Observations
Hao Xu, Federica Govoni, Matteo Murgia +6
Radio observations of galaxy clusters show that there are G magnetic fields permeating the intra-cluster medium (ICM), but it is hard to accurately constrain the strength and st…
The Growth of the Stellar Seeds of Supermassive Black Holes
Jarrett L. Johnson, Bhaskar Agarwal, Daniel J. Whalen +5
One of the most promising explanations for the origin of the billion solar mass black holes (BHs) inferred to power quasars at redshifts z > 6 is that supermassive stars (SMSs) wit…
The Growth of the Stellar Seeds of Supermassive Black Holes
Jarrett L. Johnson, Daniel J. Whalen, Christopher L. Fryer +1
The collapse of baryons into extremely massive stars with masses exceeding 10^4 M_Sun in a small fraction of protogalaxies at z > 10 is a promising candidate for the origin of supe…