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Fukugita, Masataka; Yasuda, Naoki; Brinkmann, Jon; Gunn, James E; Ivezic, Zeljko; Knapp, Gillian R; Lupton, Robert; Schneider, Donald P
12/2003Journal Article
We study the spatial variation of galaxy number counts using five band photometric images from the Sloan Digital Sky Survey. The spatial variation of this sample of 46 million galaxies collected from 2200 sq. degrees can be understood as the combination of Galactic extinction and large-scale clustering. With the use of the reddening map of Schlegel, Finkbeiner & Davis (1998), the standard extinction law is verified for the colour bands from u to z within 5% in the region of small extinction values, E(B-V)<0.15. The residual spatial variations of the number counts suggests that the error of global calibration for SDSS photometry is smaller than 0.02 mag.
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| Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
|---|---|---|---|---|---|---|---|---|
| JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP | |
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in: SICRIS
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