Nitrogen-Enriched Quasars in the Sloan Digital Sky Survey First Data Release | Zendy

Misty C. Bentz | Zendy; Patrick B. Hall | Zendy; Patrick S. Osmer | Zendy

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Nitrogen-Enriched Quasars in the Sloan Digital Sky Survey First Data Release

Author(s) -

Misty C. Bentz,

Patrick B. Hall,

Patrick S. Osmer

Publication year - 2004

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/422346

Subject(s) - quasar , sky , nitrogen , astrophysics , abundance (ecology) , physics , astronomy , chemistry , biology , galaxy , ecology , quantum mechanics

The quasar Q0353-383 has long been known to have extremely strong nitrogenintercombination lines at 1486 and 1750 Angstroms, implying an anomalously highnitrogen abundance of ~15 times solar. A search for similar nitrogen-richquasars in the Sloan Digital Sky Survey First Data Release catalog has yielded20 candidates, including four with nitrogen emission as strong or stronger thanthat seen in Q0353-383. Our results indicate that only about 1 in 1700 ofquasars have nitrogen abundances similar to Q0353-383, while up to 1 in 130 maybe in the process of extreme nitrogen enrichment.Comment: Submitted to AJ - final refereed version; 18 pages, 5 figures, 3 table

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