Сверхмассивная черная дыра

Все эти экстремально яркие далекие объекты рассматриваются сейчас как галактики с активными ядрами. Считают, что во многих случаях их ядро содержит сверхмассивную черную дыру, окруженную «аккреционным диском» вещества, собранного из галактики. При спиральном палении вещества из аккреционного риска на черную дыру часть его массы превращается в энергию. В конце концов энергия высвобождается в форме электромагнитного излучения в широком интервале длин волн — от радиоволн до рентгеновских лучей.

Ранее предполагали, что квазары и другие активные галактические ядра излучают значительную энергию в ИК- области, но из-за сильного ослабления излучения на гигантских расстояниях лишь немногие наблюдения были успешными. Со спутника ИРАС удалось

обнаружить ряд таких источников; данные для нескольких из них были проанализированы.

Сильный радиоисточник ЗС 390.3 связан с гигантской эллиптической галактикой, находящейся на расстоянии более миллиарда световых лет. Она изучалась в радио-, оптическом и рентгеновском диапазонах, но со спутника ИРАС впервые были получены длинноволновые ИК- спектры. Результаты были неожиданными. Галактика зарегистрирована во всех четырех спектральных полосах и излучает в основном в ИК- диапазоне.

 

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