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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机译：GRIPS任务的主要科学目标是使用γ射线爆发彻底改变我们对早期宇宙的理解。我们提出了一种新一代的伽马射线观测器，它能够在广泛的γ射线能量（200 keV–50 MeV）和极化（200–1000 keV）范围内实现空前的光谱学。 γ射线对核吸收特征的敏感性使得可以测量高达10 28 cm -2 的色谱柱密度。此任务可实现的次要目标包括：通过放射性衰变产生的γ射线直接测量所有类型的超新星内部，具有大质量恒星和新星的核天体物理学以及研究紧凑恒星附近的粒子加速，星际冲击和星系团。
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