Speaker
Description
Primary anisotropies and gravitational lensing of the cosmic microwave background (CMB) provide a wealth of information on cosmology. In an analysis that extracts such information, a first step is to create sky maps of anisotropies in the I, Q, and U Stokes parameters of millimeter-wave radiation fields. We will present the procedure that we used to make and validate new sky maps of the anisotropies in the frequency bands centered at 95, 150, and 220 GHz from data taken with the third-generation camera on the South Pole Telescope (SPT-3G) during the first two years (2019 and 2020) of the SPT-3G Main survey. We will discuss the method that we used to convert time series of individual detectors to sky map pixels, the calibration and cleaning steps that we applied to the maps to reduce known biases, and a suite of tests that we conducted to search for potential systematic errors. Although we detected systematic errors, they were expected to have negligible effects on scientific results obtained from the maps. These maps were used for new and significantly improved SPT-3G measurements of temperature and E-mode polarization anisotropies and gravitational lensing of the CMB.
| Would you be interested in presenting a poster if the conference is oversubcribed? | Yes |
|---|
