Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-06-04
Astron.J.134:698-705,2007
Astronomy and Astrophysics
Astrophysics
Scientific paper
10.1086/519836
Galactic extinction is tested using galaxy number counts at low Galactic latitude obtained from five band photometry of the Sloan Digital Sky Survey. The spatial variation of galaxy number counts for low extinction regions of $E(B-V) < 0.15$ is consistent with the all-sky reddening map of Schlegel, Finkbeiner, & Davis (1998) and the standard extinction law. For higher extinction regions of $E(B-V) > 0.15$, however, the map of Schlegel et al.(1998) overestimates the reddening by a factor up to 1.4, which is likely ascribed to the departure from proportionality of reddening to infrared emissivity of dust. This result is consistent with the analysis of Arce & Goodman (1999) for the Taurus dark cloud complex.
Fukugita Masataka
Schneider Donald P.
Yasuda Naoki
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