ABS Data Products
Atacama B-Mode Search (ABS) data
This file contains Stokes Q and U maps of the supernova remnant Taurus A in FITS format. There are three FITS HDUs, corresponding to the Q, U, and variance maps. The Q and U variances are equal. These maps are combined as sqrt(Q2 + U2) to form Figure 3 in Kusaka, et al. To recover the reported amplitude in Kusaka et al., one must fix the width of the beam in the fit because of the large amplitude-width degeneracy inherent in any low signal to noise map of a point source.
Units are thermodynamic temperature in Kelvin, for Q and U, and Kelvin2, for variance. The maps follow the CMB polarization convention