Foreground: Reddening Maps
HEALPix, nested, res 11 (Nside=2048)
Original Data Source:
Meisner and Finkbeiner (2015) derived all-sky maps of dust temperature and dust optical depth by fitting the Finkbeiner et al. (1999) two-component dust emission model to Planck data release 1 maps from 217 to 857 GHz and a DIRBE/IRAS 100 micron map. They calibrated the optical depth map to Galactic reddening E(B-V) using reddening measurements for a large sample of stars. They note systematic problems in their results due to imperfect zodiacal light correction at large angular scales and due to cosmic infrared background anisotropy at small angular scales.
The E(B-V) map provided here was constructed using the data and software distributed by Meisner and Finkbeiner via their Planck Two-component Dust Model webpage. Their software can also be used to obtain predictions of Galactic thermal dust emission at frequencies from 100 MHz to 3000 GHz.
More details can be found in:
"Modeling Thermal Dust Emission with Two Components: Application to the Planck High Frequency Instrument Maps", Meisner and Finkbeiner 2015, ApJ, 798, 88, ADS
Planck Two-component Dust Model page