Spatial variations of galaxy number counts in the sloan digital sky survey. II. Test of Galactic extinction in high-extinction regions

Naoki Yasuda, Masataka Fukugita, Donald P. Schneider

Research output: Contribution to journalReview article

22 Citations (Scopus)

Abstract

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 and coworkers and the standard extinction law. For higher extinction regions of E(B -V) > 0.15, however, the map of Schlegel and coworkers overestimates the reddening by a factor of up to 1.4, which can likely be ascribed to the departure from proportionality of reddening to infrared emissivity of dust. This result is consistent with the analysis of Arce & Goodman for the Taurus dark cloud complex.

Original languageEnglish (US)
Pages (from-to)698-705
Number of pages8
JournalAstronomical Journal
Volume134
Issue number2
DOIs
StatePublished - Jan 1 2007

Fingerprint

extinction
spatial variation
galaxies
emissivity
photometry
dust
test
analysis

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

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title = "Spatial variations of galaxy number counts in the sloan digital sky survey. II. Test of Galactic extinction in high-extinction regions",
abstract = "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 and coworkers and the standard extinction law. For higher extinction regions of E(B -V) > 0.15, however, the map of Schlegel and coworkers overestimates the reddening by a factor of up to 1.4, which can likely be ascribed to the departure from proportionality of reddening to infrared emissivity of dust. This result is consistent with the analysis of Arce & Goodman for the Taurus dark cloud complex.",
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Spatial variations of galaxy number counts in the sloan digital sky survey. II. Test of Galactic extinction in high-extinction regions. / Yasuda, Naoki; Fukugita, Masataka; Schneider, Donald P.

In: Astronomical Journal, Vol. 134, No. 2, 01.01.2007, p. 698-705.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Spatial variations of galaxy number counts in the sloan digital sky survey. II. Test of Galactic extinction in high-extinction regions

AU - Yasuda, Naoki

AU - Fukugita, Masataka

AU - Schneider, Donald P.

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AB - 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 and coworkers and the standard extinction law. For higher extinction regions of E(B -V) > 0.15, however, the map of Schlegel and coworkers overestimates the reddening by a factor of up to 1.4, which can likely be ascribed to the departure from proportionality of reddening to infrared emissivity of dust. This result is consistent with the analysis of Arce & Goodman for the Taurus dark cloud complex.

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