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Astrophysics: First generation of quasars.

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Title: Astrophysics: First generation of quasars.
Authors: Stratta, Giulia1 giulia.stratta@asdc.asi.it
Source: Nature. 3/18/2010, Vol. 464 Issue 7287, p359-360. 2p. 1 Diagram.
Subjects: Metaphysical cosmology, Quasars, Cosmogony, Scientific observation, Redshift, Galactic nuclei
Abstract: The article presents a study which investigates the history of the universe through the formation of quasars. The study used Spitzer Space Telescope in the 21 high-redshift quasar samples taken when the universe was about one billion years old and that the infrared Spitzer images was obtained to study the properties of hot dust in the environment of high-redshift quasars. The result shows that the abundance of hot dust is approximately proportional to their black-hole mass.
Database: Engineering Source
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PubType: Academic Journal
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  Data: Astrophysics: First generation of quasars.
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  Data: <searchLink fieldCode="JN" term="%22Nature%22">Nature</searchLink>. 3/18/2010, Vol. 464 Issue 7287, p359-360. 2p. 1 Diagram.
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  Data: The article presents a study which investigates the history of the universe through the formation of quasars. The study used Spitzer Space Telescope in the 21 high-redshift quasar samples taken when the universe was about one billion years old and that the infrared Spitzer images was obtained to study the properties of hot dust in the environment of high-redshift quasars. The result shows that the abundance of hot dust is approximately proportional to their black-hole mass.
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        Value: 10.1038/464359a
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        Text: English
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      – SubjectFull: Metaphysical cosmology
        Type: general
      – SubjectFull: Quasars
        Type: general
      – SubjectFull: Cosmogony
        Type: general
      – SubjectFull: Scientific observation
        Type: general
      – SubjectFull: Redshift
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      – SubjectFull: Galactic nuclei
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      – TitleFull: Astrophysics: First generation of quasars.
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              Text: 3/18/2010
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