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Eddington mass limit: References & Edit History
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- characteristics of quasars
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Erik Gregersen
Erik Gregersen is a senior editor at Encyclopaedia Britannica, specializing in the physical sciences and technology. Before joining Britannica in 2007, he worked at the University of Chicago Press on the Astrophysical Journal. Prior to that, he worked at McMaster University on the ODIN radio astronomy satellite project.
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Article History
Type | Description | Contributor | Date |
---|---|---|---|
Add new Web site: NASA/IPAC Extragalactic Database - LEVEL 5 - Active Galaxies and Quasistellar Objects, Accretion. | Nov 21, 2016 | ||
New article added. | Mar 04, 2011 |
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