Discovery of a z = 4.93, X-Ray-selected Quasar by the Chandra Multiwavelength Project (ChaMP)

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Discovery of a z = 4.93, X-Ray-selected Quasar by the Chandra Multiwavelength Project (ChaMP)

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Title: Discovery of a z = 4.93, X-Ray-selected Quasar by the Chandra Multiwavelength Project (ChaMP)
Author: Silverman, John D.; Green, Paul J.; Kim, Dong-Woo; Wilkes, Belinda Jane; Cameron, Robert A.; Morris, David; Dosaj, Anil; Smith, Chris; Infante, Leopoldo; Smith, Paul S.; Jannuzi, Buell T.; Mathur, Smita

Note: Order does not necessarily reflect citation order of authors.

Citation: Silverman, John D., Paul J. Green, Dong-Woo Kim, Belinda J. Wilkes, Robert A. Cameron, David Morris, Anil Dosaj, et al. 2002. “Discovery of a z = 4.93, X-Ray-selected Quasar by the Chandra Multiwavelength Project (ChaMP).” The Astrophysical Journal 569 (1) (April 10): L1–L4. doi:10.1086/340458.
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Abstract: We present X-ray and optical observations of CXOMP J213945.0-234655, a high-redshift (z = 4.93) quasar discovered through the Chandra Multiwavelength Project (ChaMP). This object is the most distant X-ray-selected quasar published, with a rest-frame X-ray luminosity of LX = 5.9 × 1044 ergs s-1 (measured in the 0.3-2.5 keV band and corrected for Galactic absorption). CXOMP J213945.0-234655 is a g' dropout object (>26.2), with r' = 22.87 and i' = 21.36. The rest-frame X-ray-to-optical flux ratio is similar to quasars at lower redshifts and slightly X-ray bright relative to z > 4 optically selected quasars observed with Chandra. The ChaMP is beginning to acquire significant numbers of high-redshift quasars to investigate the X-ray luminosity function out to z ~ 5.
Published Version: doi:10.1086/340458
Other Sources: https://arxiv.org/abs/astro-ph/0201379
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:30212158
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