Foreground: Corrected SFD Reddening Map

Coordinate System:
Projection Type:
HEALPix, ring, res11 (NSIDE=2048)
Original Data Source:
Source: Chiang (2023)
Download Links:

Chiang (2023) performed a reanalysis of the SFD (Schlegel, Finkbeiner & Davis 1998) reddening map, using correlations with large-scale structure traced by WISE galaxies to remove extragalactic contamination from the cosmic infrared background (CIB). The corrected reddening map and mask, plus the CIB map and error map, are available for download.

Version 2 (Aug 2023) - providing the LSS correction in a larger footprint outside the original mask, and adding a HEALPix NSIDE 2048 version of the original SFD map.

More details can be found in:

  • Corrected SFG: A More Accurate Galactic Dust Map with Minimal Extragalactic Contamination

  • A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
    Goddard Space Flight Center, National Aeronautics and Space Administration
    HEASARC Director: Dr. Andrew F. Ptak
    LAMBDA Director: Dr. Thomas M. Essinger-Hileman
    NASA Official: Dr. Thomas M. Essinger-Hileman
    Web Curator: Mr. Michael R. Greason