{"@context":"http://iiif.io/api/presentation/4/context.json","id":"https://archivebase.ldas.jp/na-kamura-1263/smithsonian-3d/api/iiif/4/crab-nebula-663444/manifest","type":"Manifest","label":{"ja":["かに星雲"],"en":["Crab Nebula"]},"summary":{"ja":["かに星雲は、地球から約6,500光年の距離にある、爆発した星の残骸を示している。かに星雲系にエネルギーを与える原動力の「エンジン」はパルサーであり、高速で自転する中性子星が、1秒間に30回の放射のパルスを噴き出している。NASAのチャンドラX線観測衛星のX線情報を用いて、かに星雲の三次元表現が作られた。このX線構造は、パルサーと、エネルギーを帯びた物質の環状円盤、そしてエネルギーに満ちたパルサーの両端から噴き出す粒子のジェットを示している。"],"en":["The Crab Nebula shows the remains of an exploded star located about 6,500 light years from Earth. The powerhouse “engine” energizing the Crab system is a pulsar, a rapidly spinning neutron star, shooting out pulses of radiation 30 times a second. X-ray information from NASA’s Chandra X-ray Observatory was used to create a three-dimensional representation of the Crab. The X-ray structure shows the pulsar and a ringed disk of energized material, with jets of particles that fire off from opposite ends of the energetic pulsar. 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