Bibliographic Details
| 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 |
