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The BTC40 Survey for Quasars at 4.8 < z < 6

Abstract:

The BTC40 Survey for high-redshift quasars is a multicolor search using images obtained with the Big Throughput Camera (BTC) on the CTIO 4-m telescope in V, I, and z filters to search for quasars at redshifts of 4.8 < z < 6. The survey covers 40 sq. deg. in B, V, and I and 36 sq. deg. in z. Limiting magnitudes (3 sigma) reach to V = 24.6, I = 22.9 and z = 22.9. We used the (V-I) vs. (I-z) two-color diagram to select high-redshift quasar candidates from the objects classified as point so...

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Publication status:
Published

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Publisher copy:
10.1086/344076

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Journal:
ASTRONOMICAL JOURNAL
Volume:
124
Issue:
5
Pages:
2971-2979
Publication date:
2002-09-03
DOI:
ISSN:
0004-6256
URN:
uuid:40839575-8004-4c35-adcf-ee53ff719f45
Source identifiers:
1517
Local pid:
pubs:1517
Keywords:

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