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A Population of X-Ray Weak Quasars: PHL 1811 Analogs at High Redshift
This article reports the results from Chandra and XMM-Newton observations of a sample of 10 type 1 quasars selected to have unusual UV emission-line properties similar to those of PHL 1811.
Date:
April 15, 2011
Creator:
Wu, Jianfeng; Brandt, William Nielsen; Hall, Patrick B.; Gibson, Robert R.; Richards, Gordon T.; Schneider, Donald P. et al.
Object Type:
Article
System:
The UNT Digital Library
The Universal Code
Poster presentation for the 2010 University Scholars Day at the University of North Texas discussing research on the universal code.
Date:
April 15, 2010
Creator:
Alvarado, Roberto & Kirk, Andrea B.
Object Type:
Poster
System:
The UNT Digital Library