Poyasnenie: Spiral'nye galaktiki nazyvayutsya tak potomu, chto vokrug ih yader vrashayutsya zametnye spiral'nye rukava, soderzhashie molodye zvezdy, mezhzvezdnyi gaz i pyl'. Ellipticheskie galaktiki obychno soderzhat starye zvezdy, pri etom v nih malo gaza i pyli. Poetomu astronomy byli ochen' udivleny, obnaruzhiv, chto NGC 1700, molodaya ellipticheskaya galaktika v 160 millionah svetovyh let ot nas, imeet goryachii vrashayushiisya disk. Temperatura gaza v diske - neskol'ko millionov gradusov, shirina diska - 90 000 svetovyh let. Takie dannye byli polucheny orbital'noi observatoriei "Chandra". Na risunke vy vidite rentgenovskoe izobrazhenie NGC 1700. Cveta na risunke - uslovnye. Vrashenie goryachego rentgenovskogo diska uravnoveshivaet sily gravitacii, pridavaya galaktike vyrazhennyi "korobkoobraznyi" profil'. Eto samyi bol'shoi disk, obnaruzhennyi do sih por. Iz teorii o proishozhdenii diskov sleduet, chto poyavlenie galaktiki NGC 1700 mozhet byt' rezul'tatom stolknoveniya dvuh galaktik, odna iz kotoryh, naprimer, byla spiral'noi, a drugaya - ellipticheskoi. NGC 1700 mozhno uvidet' v nebol'shoi teleskop v sozvezdii Eridana.
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Publikacii s klyuchevymi slovami:
NGC 1700 - Elliptical Galaxy - merging galaxies - ellipticheskaya galaktika - rentgenovskie nablyudeniya - stalkivayushiesya galaktiki
Publikacii so slovami: NGC 1700 - Elliptical Galaxy - merging galaxies - ellipticheskaya galaktika - rentgenovskie nablyudeniya - stalkivayushiesya galaktiki | |
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