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Estrela OB

Estrela OB são estrelas massivas e quentes que aparecem em grupos chamados associações OB. Elas têm uma vida curta, e portanto não se afastam muito do local onde foram formadas. Durante sua vida, elas emitem grandes quantidades de radiação ultravioleta. Esta radiação rapidamente ioniza o gás da gigante nuvem molecular que as envolvem, formando uma região HII ou esfera de Strömgren.[1]

Referências

  1. Reed, B. Cameron (2003). Catalog of Galactic OB Stars. 125. EUA: The Astronomical Journal. p. 2531–2533 

Ligações externas

[editar | editar código-fonte]
  • [1] - Scientia Astrophysical Organization's star classification page
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Estrela OB
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