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BICEP/Keck XX: Component-separated maps of polarized CMB and thermal dust emission using Planck and BICEP/Keck Observations through the 2018 Observing Season
Keck Collaboration, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. A. Bischoff, D. Beck, J. J. Bock, H. Boenish, V. Buza, B. Cantrall, J. R. Cheshire IV, J. Connors, J. Cornelison, M. Crumrine, A. J. Cukierman, E. Denison, L. Duband, M. Echter, M. Eiben, B. D. Elwood, S. Fatigoni, J. P. Filippini, A. Fortes, M. G…

BICEP/Keck XX: Component-separated maps of polarized CMB and thermal dust emission using Planck and BICEP/Keck Observations through the 2018 Observing Season
We present component-separated polarization maps of the cosmic microwave background (CMB) and Galactic thermal dust emission, derived using data from the BICEP/Keck experiments through the 2018 observing season and Planck. By employing a maximum-likelihood method that utilizes observing matrices, we produce unbiased maps of the CMB and dust signals. We outline the computational challenges and demonstrate an efficient implementation of the component map estimator. We show methods to compute and …

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First results from ALPPS: a sub-Alfv\'enic streamer in SVS13A
P. C. Cortes, J. E. Pineda, T. -H. Hsieh, J. J. Tobin, P. Saha, J. M. Girart, V. J. M. Le Gouellec, I. W. Stephens, L. W. Looney, E. Koumpia, M. T. Valdivia-Mena, L. Cacciapuoti, C. Gieser, S. S. R. Offner, P. Caselli, P. Sanhueza, D. Segura-Cox, M. Fernandez-Lopez, K. Morii, B. Huang, F. O. Alves, Q. Zhang, W. Kwon, C. L. H. Hull, Z. Y. Li

First results from ALPPS: a sub-Alfvénic streamer in SVS13A
We present the first results from the ALMA Perseus Polarization Survey (ALPPS), focusing on the magnetic field in the SVS13A circumbinary disk. The dataset includes full-Stokes dust continuum observations at $\sim0\farcs3$ and 870 $μ$m, as well as molecular line emission from C$^{17}$O$(J=3 \rightarrow 2)$ at $\sim0\farcs3$, C$^{18}$O$(J=2 \rightarrow 1)$ at $\sim0\farcs2$, and DCN$(J=3 \rightarrow 2)$ at $\sim0\farcs1$ angular resolution. Our observations resolve both a previously identified …

X-ray Emission Spectropolarimetry of Strongly Anisotropic Single Crystal Systems using a Rowland Circle Geometry
Jared E. Abramson, Charles A. Cardot, Josh J. Kas, John J. Rehr, Werner Kaminsky, Herwig Michor, Marta Roman, Petra Becker, Gerald T. Seidler
https://arxiv.org/abs/2507.18839

X-ray Emission Spectropolarimetry of Strongly Anisotropic Single Crystal Systems using a Rowland Circle Geometry
Polarization dependence has historically seen extensive use in x-ray spectroscopy to determine magnetic and local geometric properties, but more broadly as a way to gain extra sensitivity to electronic structure at the level of individual magnetic orbitals. This is often done in the context of x-ray absorption through techniques like x-ray magnetic circular dichroism or x-ray linear dichroism, but it has seen little application to x-ray emission. Here we explore the information contained in the…

Two-Person Additively-Separable Sum Games
Somdeb Lahiri
https://arxiv.org/abs/2507.19325 https://arxiv.org/pdf/2507.19325

Two-Person Additively-Separable Sum Games
We consider a subclass of bimatrix games which we refer to as two person additively separable sum games, where the sum of the payoffs of the two players is additively separable. The payoff to the row player at each pair of pure strategies, is the sum of two numbers, the first of which may be dependent on the pure strategy chosen by the column player and the second being independent of the pure strategy chosen by the column player. The payoff to the column player at each pair of pure strategies,…

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Low-Cost Architecture and Efficient Pattern Synthesis for Polarimetric Phased Array Based on Polarization Coding Reconfigurable Elements
Yiqing Wang, Jian Zhou, Chen Pang, Wenyang Man, Zixiang Xiong, Ke Meng, Zhanling Wang, Yongzhen Li
https://arxiv.org/abs/2508.19644

Low-Cost Architecture and Efficient Pattern Synthesis for Polarimetric Phased Array Based on Polarization Coding Reconfigurable Elements
Polarimetric phased arrays (PPAs) enhance radar target detection and anti-jamming capabilities. However, the dual transmit/receive (T/R) channel requirement leads to high costs and system complexity. To address this, this paper introduces a polarization-coding reconfigurable phased array (PCRPA) and associated pattern synthesis techniques to reduce PPA costs while minimizing performance degradation. Each PCRPA element connects to a single T/R channel and incorporates two-level RF switches for r…

Modeling the polarization properties of synchrotron sources through simulations of relativistic MHD turbulence
Luca Del Zanna, Niccol\`o Bucciantini, Simone Landi
https://arxiv.org/abs/2508.20620

Modeling the polarization properties of synchrotron sources through simulations of relativistic MHD turbulence
The emission from the relativistically hot plasmas of high-energy astrophysical synchrotron sources, Pulsar Wind Nebulae (PWNe) in particular, depends on the level of magnetic fluctuations. Recent observations by the X-ray polarimeter IXPE support the presence of turbulence, with varying conditions even in different regions of a same source. We aim at modeling such synchrotron emission, and in particular the degree of linear polarization, by using for the first time 3D relativistic MHD turbulen…

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