Pranab Ghosh, Lorella Angelini, Matthew Baring, Wayne Baumgartner, Kevin Black, Jessie Dotson, Alice Harding, Joanne Hill, Keith Jahoda, Phillip Kaaret, Tim Kallman, Henric Krawczynski, Julian Krolik, Dong Lai, Craig Markwardt, Herman Marshall, Jeffrey Martoff, Robin Morris, Takashi Okajima, Robert Petre, Juri Poutanen, Stephen Reynolds, Jeffrey Scargle, Jeremy Schnittman, Peter Serlemitsos, Yang Soong, Tod Strohmayer, Jean Swank, Y. Tawara, Toru Tamagawa
We examine the expected X-ray polarization properties of neutron-star X-ray sources of various types, e.g., accretion and rotation powered pulsars, magnetars, and low-mass X-ray binaries. We summarize the model calculations leading to these expected properties. We describe how a comparison of these with their observed properties, as inferred from GEMS data, will probe the essential dynamical, electromagnetic, plasma, and emission processes in neutron-star binaries, discriminate between models of these processes, and constrain model parameters. An exciting goal is the first observational demonstration in this context of the existence of vacuum resonance, a fundamental quantum electrodynamical phenomenon first described in the 1930s.
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http://arxiv.org/abs/1301.5514
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