Avtory i prava: Dzh.S. Barentin & Zh.A. Eskuerdo ( Kosmicheskii nauchnyi institut ), 1.3-metrovyi teleskop, observatoriya Kitt Pik, Nacional'naya
opticheskaya astronomicheskaya observatoriya
Poyasnenie:
Yavlyaetsya li nasha Galaktika takoi zhe tonkoi? Skoree vsego. Mlechnyi Put' pohozh na izobrazhennuyu
na kartinke galaktiku NGC 891 i yavlyaetsya obychnoi spiral'noi galaktikoi . V spiral'nyh galaktikah bol'shinstvo yarkih zvezd, gaz i pogloshayushaya
pyl' nahodyatsya v tonkom diske. Etot disk mozhet byt' takim tonkim, chto spiral'naya galaktika vyglyadit kak kompaktnyi
disk, esli smotret' na nego s boku . Temnaya polosa poseredine eto pyl' , kotoraya pogloshaet svet. Neskol'ko
milliardov zvezd dvizhutsya vokrug centra galaktiki NGC 891 , odnako dvizhutsya ochen' bystro, chtoby dvigat'sya po
okruzhnostyam. Chto iniciiruet takoe pekulyarnoe dvizhenie? Schitaetsya, chto cherez centr
NGC 891 prohodit ogromnaya peremychka , kotoraya byla by vidna, esli by eta galaktika raspolagalas'
plashmya . Kartinka, kotoruyu Vy vidite, byla sostavlena iz treh izobrazhenii, poluchennyh v infrakrasnom svete.
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Publikacii s klyuchevymi slovami:
spiral galaxy - spiral'naya galaktika s peremychkoi - disk, galakticheskii
Publikacii so slovami: spiral galaxy - spiral'naya galaktika s peremychkoi - disk, galakticheskii | |
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