Search Results - "Burns, J. O."

Validating Posteriors Obtained by an Emulator When Jointly Fitting Mock Data of the Global 21 cm Signal and High-z Galaxy UV Luminosity Function by Dorigo Jones, J., Rapetti, D., Mirocha, J., Hibbard, J. J., Burns, J. O., Bassett, N.

“…Although neural-network-based emulators enable efficient parameter estimation in 21 cm cosmology, the accuracy of such constraints is poorly understood. We…”
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Do Cooling Flows Survive Cluster Mergers? by Gómez, P. L, Loken, C, Roettiger, K, Burns, J. O

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Cluster-subcluster mergers and the formation of narrow-angle tailed radio sources by Bliton, M., Rizza, E., Burns, J. O., Owen, F. N., Ledlow, M. J.

“…We examine the ROSAT PSPC X‐ray properties of a sample of 15 Abell clusters containing 23 narrow‐angle tailed (NAT) radio galaxies. We find that clusters with…”
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X-ray observations of distant Abell clusters by Rizza, E., Burns, J. O., Ledlow, M. J., Owen, F. N., Voges, W., Bliton, M.

“…We present results from a ROSAT HRI study of 11 distant (z ∼ 0.2–0.3) Abell clusters. We have performed a morphological analysis to search for and quantify…”
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ROSAT X-Ray Observations of Abell Clusters with Wide-Angle Tailed Radio Sources by Gómez, P. L, Pinkney, J, Burns, J. O, Wang, Q, Owen, F. N, Voges, W

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The Santa Fe Light Cone Simulation Project. I. Confusion and the Warm-Hot Intergalactic Medium in Upcoming Sunyaev-Zel'dovich Effect Surveys by Hallman, Eric J, O’Shea, Brian W, Burns, Jack O, Norman, Michael L, Harkness, Robert, Wagner, Rick

“…We present the first results from a new generation of simulated large sky coverage ( similar to 100 deg super(2)) Sunyaev-Zel'dovich effect (SZE) cluster…”
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Cluster-subcluster mergers and the formation of narrow-angle tailed radio sources by Bliton, M., Rizza, E., Burns, J. O., Owen, F. N., Ledlow, M. J.

“…We examine the ROSAT PSPC X-ray properties of a sample of 15 Abell clusters containing 23 narrow-angle tailed (NAT) radio galaxies. We find that clusters with…”
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Challenges for Precision Cosmology with X-Ray and Sunyaev-Zeldovich Effect Gas Mass Measurements of Galaxy Clusters by Hallman, Eric J, Motl, Patrick M, Burns, Jack O, Norman, Michael L

“…We critically analyze the measurement of galaxy cluster gas masses, which is central to cosmological studies that rely on the galaxy cluster gas mass fraction…”
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Stormy Weather in Galaxy Clusters by Burns, Jack O.

“…Recent x-ray, optical, and radio observations coupled with particle and gas dynamics numerical simulations reveal an unexpectedly complex environment within…”
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Numerical Models of Extragalactic Radio Sources by Burns, Jack O., Norman, Michael L., Clarke, David A.

“…Numerical simulations with supercomputers allow analysis of the wide range of nonlinear physics inherent in the hydrodynamic and magnetohydrodynamic equations…”
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Radio-interferometric imaging of the subsurface emissions from the planet Mercury by Burns, J. O., Zeilik, M., Gisler, G. R., Borovsky, J. E., Baker, D. N.

“…The distribution of total and polarized intensities from Mercury's subsurface layers have been mapped using VLA observations. The first detection of a hot pole…”
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The galaxy cluster ‘Pypeline’ for X-ray temperature maps: ClusterPyXT by Alden, B., Hallman, E.J., Rapetti, D., Burns, J.O., Datta, A.

“…ClusterPyXT is a new software pipeline to generate spectral temperature, X-ray surface brightness, pressure, and density maps from X-ray observations of galaxy…”
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Stormy weather and cluster radio galaxies by Burns, J.O., Loken, C., Roettiger, K., Rizza, E., Bryan, G., Norman, M.L., Gómez, P., Owen, F.N.

“…New adaptive mesh refinement N-body+hydrodynamics numerical simulations are used to illustrate the complex and changing cluster environments in which many…”
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Comet Hunting: Discipline and Serendipity by Burns, Jack O.

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Cluster winds blow along supercluster axes by Novikov, Dmitri I., Melott, Adrian L., Wilhite, Brian C., Kaufman, Michael, Burns, Jack O., Miller, Christopher J., Batuski, David J.

“…Within Abell galaxy clusters containing wide-angle tailed (WAT) radio sources, there is evidence of a ‘prevailing wind’ which directs the WAT jets. We study…”
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Numerical simulations of rotating cooling flows in galaxy cluster environments by Garasi, Christopher, Loken, Chris, Burns, Jack O., Roettiger, Kurt

“…We have used 2D numerical simulations to study the evolution of galaxy cluster cooling flows undergoing a rotational perturbation. We show that such rotations…”
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The structure and environment of the wide-angle tailed radio galaxy 1919 + 479 by Burns, J. O.

“…New 20-cm VLA observations of the radio galaxy 1919 + 479 appear to pose some major problems for a radio-trail model of this wide-angle tailed source. The…”
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The b-Model Problem: The Incompatibility of X-Ray and Sunyaev-Zeldovich Effect Model Fitting for Galaxy Clusters by Hallman, E J, Burns, J O, Motl, P M

“…We have analyzed a large sample of numerically simulated clusters to demonstrate the adverse effects resulting from the use of X-ray-fitted b-model parameters…”
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texttt{21cmLSTM}$: A Fast Memory-based Emulator of the Global 21 cm Signal with Unprecedented Accuracy by Jones, J. Dorigo, Bahauddin, S. M, Rapetti, D, Mirocha, J, Burns, J. O

“…Neural network (NN) emulators of the global 21 cm signal need emulation error much less than the observational noise in order to be used to perform unbiased…”
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Directions for space-based low frequency radio astronomy: 1. System considerations by Basart, J. P., Burns, J. O., Dennison, B. K., Weiler, K. W., Kassim, N. E., Castillo, S. P., McCune, B. M.

“…Although observations at the low end of the radio astronomy spectrum were the precursor of all work in radio astronomy, this portion of the spectrum has…”
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