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- W1626082901 abstract "From its origin at the center of a star to the edge, through thesurrounding gas and dust in the distant galaxy, through theintergalactic medium, traveling billions of light years only to bereflected by a mirror and captured by a detector; the little amount oflight observed from galaxies in the early universe contains a wealthof historic information. This thesis concentrates on translating theluminosities and colors of distant galaxies to physical propertiessuch as distance, mass, age of the stellar population, and dustcontent.Analyzing deep optical and infrared observations of distant (redshiftz~2.5) galaxies, we learn that massive galaxies have on average reddercolors than less massive galaxies, although simulations show that massunderestimates of star-forming galaxies are possible. Roughly half ofthe red galaxies at high redshift owe their color to an old, quiescentstellar population. The other half is still actively star-forming,but obscured by large columns of dust. The abundance of star-formingand quiescent galaxies is consistent with a model that assigns a keyrole to collisions between gas-rich disk galaxies involving quasaractivity, and leaving red spheroids as remnants. However, this modeldoes not reproduce the colors of dusty red galaxies." @default.
- W1626082901 created "2016-06-24" @default.
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- W1626082901 date "2007-09-27" @default.
- W1626082901 modified "2023-09-27" @default.
- W1626082901 title "Red Galaxies at High Redshift" @default.
- W1626082901 hasPublicationYear "2007" @default.
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