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Gamma-ray burst investigation via polarimetry and spectroscopy (GRIPS)

Greiner, J. / Iyudin, A. / Kanbach, G. / Zoglauer, A. / Diehl, R. / Ryde, F. / Hartmann, D. / Kienlin, A. V. / Mcbreen, S. / Ajello, M. / Bagoly, Z. / Balasz, L. G. / Barbiellini, G. / Bellazini, R. / Bezrukov, L. / Bisikalo, D. V. / Bisnovaty-Kogan, G. / Boggs, S. / Bykov, A. / Cherepashuk, A. M. / Chernenko, A. / Collmar, W. / Dicocco, G. / Dröge, W. / Gierlik, M. / Hanlon, L. / Horvath, I. / Hudec, R. / Kiener, J. / Labanti, C. / Langer, N. / Larsson, S. / Lichti, G. / Lipunov, V. M. / Lubsandorgiev, B. K. / Majczyna, A. / Mannheim, K. / Marcinkowski, R. / Marisaldi, M. / McBreen, B. / Meszaros, A. / Orlando, E. / Panasyuk, M. I. / Pearce, M. / Pian, E. / Poleschuk, R. V. / Pollo, A. / Pozanenko, A. / Savaglio, S. / Shustov, B. / Strong, A. / Svertilov, S. / Tatischeff, V. / Uvarov, J. / Varshalovich, D. A. / Wunderer, C. B. / Wrochna, G. / Zabrodskij, A. G. / Zeleny, L. M. - 2009
The primary scientific goal of the GRIPS mission is to revolutionize our understanding of the early universe using γ-ray bursts. We propose a new generation gamma-ray observatory capable of unprecedented spectroscopy over a wide range of γ-ray energies (200 keV-50 MeV) and of polarimetry (200-1000 keV). The γ-ray sensitivity to nuclear absorption features enables the measurement of column densities as high as 1028cm - 2. Secondary goals achievable by this mission include direct measurements of all types of supernova interiors through γ-rays from radioactive decays, nuclear astrophysics with massive stars and novae, and studies of particle acceleration near compact stars, interstellar shocks, and clusters of galaxies.

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