Greiner 2009 用核子共振的吸收线作为高能仪器的原理

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号称可以探测z=20-60的暴 (?)

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· arXiv e-print (arXiv:0902.3525)

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Title:		Nuclear Resonances: The quest for large column densities and a new tool
Authors:		Greiner, J.; Boggs, S. E.; DiCocco, G.; Freese, K. T.; Gehrels, N.; Hartmann, D. H.; Iyudin, A.; Kanbach, G.; Zdziarski, A. A.
Publication:		eprint arXiv:0902.3525
Publication Date:		02/2009
Origin:		ARXIV
Keywords:		Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Comment:		White Paper subm. to Decadal Survey
Bibliographic Code:		2009arXiv0902.3525G

Abstract

Nuclear physics offers us a powerful tool: using nuclear resonance absorption lines to infer the physical conditions in astrophysical settings which are otherwise difficult to deduce. Present-day technology provides an increase in sensitivity over previous gamma-ray missions large enough to utilize this tool for the first time. The most exciting promise is to measure gamma-ray bursts from the first star(s) at redshifts 20-60, but also active galactic nuclei are promising targets.

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