GRAINE project, prospects for scientific balloon-borne experiments

• 高橋, 覚

• 青木, 茂樹

• GRAINE collaboration

抄録

We are pushing forward with the GRAINE project, a 10-MeV to 100-GeV cosmic γ-ray observation project that uses an emulsion telescope with high angular resolution (0.08° at 1–2 GeV) and polarization sensitivity, and a large aperture area (∼10 m(2)), by repeating long-duration balloon flights. Through various ground experiments, a balloon-borne experiment in 2011, and a balloon-borne experiment in 2015, the feasibility of cosmic γ-ray observations with a balloon-borne emulsion telescope was pioneered. Through scientific balloon-borne experiments, we can attempt to achieve the following: pioneering polarization observations for high-energy γrays from pulsars, active galactic nuclei, flares, and γ-ray bursts; direct probing of proton acceleration by π(0) feature detection and approaching an emission mechanism with a spatial structure for supernova remnants; resolving GeV γ-ray excess at the galactic center region; probing new physics beyond the Planck scale by polarization observations with high-energy γrays propagating over cosmological distances; observing transient sources, e.g. γ-ray bursts and flares, with a high sensitivity, high photon statistics and polarization sensitivity. Developments in scientific balloon-borne experiments are ongoing.

収録刊行物

• Advances in Space Research

  Advances in Space Research 62 (10), 2945-2953, 2018-11-15

  Elsevier

キーワード

• γ-ray astronomy
• Nuclear emulsion
• Cosmic ray
• Balloon-borne experiment

詳細情報

• CRID: 1050575520346574336
• NII論文ID: 120006545975
• DOI: 10.1016/j.asr.2017.08.029
• ISSN: 18791948
• ISSN: 02731177
• HANDLE: 20.500.14094/90005470
• Web Site: https://api.elsevier.com/content/article/PII:S0273117717306245?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S0273117717306245?httpAccept=text/plain
• 本文言語コード: en
• 資料種別: journal article
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