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12 papers · 1 filter
Possible AGN Shock Heating in the Cool Core Galaxy Cluster Abell 478
Alastair J. R. Sanderson, Alexis Finoguenov, Joseph J. Mohr
We present a detailed X-ray study of the intracluster medium (ICM) of the nearby, cool-core galaxy cluster Abell 478, with Chandra and XMM observations. Using a wavelet smoothing h…
High-Tc Superconductors - based Nanocomposites with Improved Intergrain Coupling and Enhanced Bulk Pinning
Tanya Prozorov, Brett McCarty, Baowei Liu +1
Heterogeneous sonochemical synthesis was used to modify superconducting properties of granular YBa2Ca3CuO7-y and Bi2Sr2CaCu2O8+x. Sonication of liquid-powder alkane slurries produc…
Gradient flow of the norm squared of a moment map
Eugene Lerman
We present a proof due to Duistermaat that the gradient flow of the norm squared of the moment map defines a deformation retract of the appropriate piece of the manifold onto the z…
Capacity and Random-Coding Exponents for Channel Coding with Side Information
Pierre Moulin, Ying Wang
Capacity formulas and random-coding exponents are derived for a generalized family of Gel'fand-Pinsker coding problems. These exponents yield asymptotic upper bounds on the achieva…
Non-compact QED(3) coupled to a four-fermi interaction
J. B. Kogut, C. G. Strouthos, I. N. Tziligakis
We present preliminary numerical results for the three dimensional non-compact QED with a weak four-fermion term in the lattice action. Approaches based on Schwinger-Dyson studies,…
A Beginner's Guide to the Theory of CMB Temperature and Polarization Power Spectra in the Line-of-Sight Formalism
Yen-Ting Lin, Benjamin D. Wandelt
We present here a detailed, self--contained treatment of the mathematical formalism for describing the theory of polarized anisotropy in the cosmic microwave background. This didac…