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protogalaxy
(redirected from protogalaxies)

    Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
protogalaxy [‚prōd·ō′gal·ik·sē]
(astronomy)
A clump of matter in an early stage of galaxy formation in which the matter has started to collapse under its own gravity to form a galaxy.
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But even as the stars and quasars within these protogalaxies began to light up, the universe as a whole remained dark.
Light's Debut: Good Morning, Starshine! by Cowen, R. / Science News
`Dark gas clouds are interesting because they could be protogalaxies, (clouds of gas that haven't managed to form stars), or they could be debris from the formation of other galaxies,' Staveley-Smith says.
Seeking galaxies by gaslight: hydrogen gas is telling tales on ... by Pyper, Wendy / Ecos
Because intense star birth may be a signpost of the formation of galaxies, WIRE will also search for fledgling galaxies, known as protogalaxies.
Space 1998: from the moon to Mars and beyond by Cowen, Ron / Science News
 
 
 
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