A Search for Nitrogen-Enriched Quasars in the Sloan Digital Sky Survey Early Data Release | Zendy

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

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A Search for Nitrogen-Enriched Quasars in the Sloan Digital Sky Survey Early Data Release

Author(s) -

Misty C. Bentz,

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 - 10.1086/381299

Subject(s) - quasar , sky , astrophysics , emission spectrum , galaxy , nitrogen , physics , astronomy , spectral line , line (geometry) , geometry , mathematics , quantum mechanics

A search for nitrogen-rich quasars in the Sloan Digital Sky Survey Early DataRelease (SDSS EDR) catalog has yielded 16 candidates, including five with veryprominent emission, but no cases with nitrogen emission as strong as inQ0353-383. The quasar Q0353-383 has long been known to have extremely strongnitrogen intercombination lines at lambda 1486 and lambda 1750 Angstroms,implying an anomalously high nitrogen abundance of about 15 times solar. It isstill the only one of its kind known. A preliminary search through the EDRusing the observed property of the weak C IV emission seen in Q0353-383resulted in a sample of 23 objects with unusual emission or absorption-lineproperties, including one very luminous redshift 2.5 star-forming galaxy. Wepresent descriptions, preliminary emission-line measurements, and spectra forall the objects discussed here.Comment: 20 pages, 5 figures, submitted to AJ; final refereed versio

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