X-Ray Star - X-Sensei

Japanese: X線星 - エックスせんせい
X-Ray Star - X-Sensei
A common name for star-like X-ray sources in the Milky Way. Some emit X-rays with more than 1,000 times the energy emitted by the Sun, and many of these are thought to be close binary systems consisting of a star and an ultra-dense star such as a neutron star or black hole. Plasma emanating from the star and matter (gas) overflowing from the star form a disk (accretion disk) that revolves around the dense star, and gradually falls onto the dense star from the inside. The gravitational energy released at this time raises the temperature of the plasma that makes up the disk to tens to hundreds of millions of degrees, and X-rays are emitted as thermal radiation. One of the stars in Cygnus XI, a typical X-ray star, is believed to be a black hole. →X-ray burster→Related topics X-rays | Neutron stars | Radio stars

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:
銀河系内にある星状のX線源の通称。太陽の放射するエネルギーの1000倍を超えるエネルギーをX線として出しているものがあり,その多くは,中性子星,ブラックホール等の超高密度星と恒星からなる近接連星と考えられている。恒星から吹き出すプラズマや恒星からあふれ出た物質(ガス)は高密度星のまわりを回る円盤(降着円盤)を形成,内側から徐々に高密度星に落ちていく。このとき解放された重力エネルギーによって円盤をつくっているプラズマの温度は数千万〜数億度の高温になり,熱放射としてX線を放出する。代表的なX線星の一つ,はくちょう座X-Iの一方はブラックホールに間違いないとされている。→X線バースター
→関連項目X線|中性子星|電波星

出典 株式会社平凡社百科事典マイペディアについて 情報

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