The Atacama Cosmology Telescope: Microwave Intensity and Polarization Maps of the Galactic Center

Understand

We present arcminute-resolution intensity and polarization maps of the Galactic center made with the Atacama Cosmology Telescope (ACT).

• The maps cover a 32 deg$^2$ field at 98, 150, and 224 GHz with $\vert l\vert\le4^\circ$, $\vert b\vert\le2^\circ$.
• We combine these data with Planck observations at similar frequencies to create coadded maps with increased sensitivity at large angular scales.
• With the coadded maps, we are able to resolve many known features of the Central Molecular Zone (CMZ) in both total intensity and polarization.