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Title: Spectroscopy of quasar candidates from SDSS commissioning data

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.58612· OSTI ID:703525

The Sloan Digital Sky Survey has obtained images in five broad-band colors for several hundred square degrees. We present color-color diagrams for stellar objects, and demonstrate that quasars are easily distinguished from stars by their distinctive colors. Follow-up spectroscopy in less than ten nights of telescope time has yielded 22 new quasars, 9 of them at z{gt}3.65, and one with z=4.75, the second highest-redshift quasar yet known. Roughly 80{percent} of the high-redshift quasar candidates selected by color indeed turn out to be high-redshift quasars. {copyright} {ital 1999 American Institute of Physics.}

Sponsoring Organization:
USDOE
OSTI ID:
703525
Report Number(s):
CONF-981092-; ISSN 0094-243X; TRN: 9918M0014
Journal Information:
AIP Conference Proceedings, Vol. 470, Issue 1; Conference: 9. astrophysics conference: after the dark ages: when galaxies were young, College Park, MD (United States), 12-14 Oct 1998; Other Information: PBD: Apr 1999
Country of Publication:
United States
Language:
English

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