%0 Generic %1 lu2019producing %A Lu, Zekun %A Lazarian, A. %A Pogosyan, Dmitri %D 2019 %K CMB dust foregrounds map-making %T Producing Synthetic Maps of Dust Polarization using Velocity Channel Gradient Technique %U http://arxiv.org/abs/1910.02226 %X In modern cosmology, many efforts have been put to detect primordial B-mode of cosmic microwave background (CMB) polarization from the gravitational waves generated during inflation. Considering the foreground dust contamination of microwave polarization maps, it is essential to obtain a precise prediction for polarization in dust emission. In this work, we show a new method to produce synthetic maps of dust polarization in magnetized turbulent ISM from more abundant high-resolution HI data. By using Velocity Channel Gradient (VChG) technique, we are able to predict both direction and degree of dust polarization by investigating spectroscopic HI information in position-position-velocity (PPV) space. We applied our approach to The Galactic Arecibo L-band feed Array HI (GALFA-HI) data, and find a good correspondence between synthesized maps and PLANCK's polarization measurements at 353 GHz.

@misc{lu2019producing, abstract = {In modern cosmology, many efforts have been put to detect primordial B-mode of cosmic microwave background (CMB) polarization from the gravitational waves generated during inflation. Considering the foreground dust contamination of microwave polarization maps, it is essential to obtain a precise prediction for polarization in dust emission. In this work, we show a new method to produce synthetic maps of dust polarization in magnetized turbulent ISM from more abundant high-resolution HI data. By using Velocity Channel Gradient (VChG) technique, we are able to predict both direction and degree of dust polarization by investigating spectroscopic HI information in position-position-velocity (PPV) space. We applied our approach to The Galactic Arecibo L-band feed Array HI (GALFA-HI) data, and find a good correspondence between synthesized maps and PLANCK's polarization measurements at 353 GHz.}, added-at = {2019-10-21T07:36:59.000+0200}, author = {Lu, Zekun and Lazarian, A. and Pogosyan, Dmitri}, biburl = {https://www.bibsonomy.org/bibtex/2442a44f44aa66de4fbc17773ad86a65d/rana_7690}, description = {Producing Synthetic Maps of Dust Polarization using Velocity Channel Gradient Technique}, interhash = {d84b8126400793dd0fb0a7853c99af5f}, intrahash = {442a44f44aa66de4fbc17773ad86a65d}, keywords = {CMB dust foregrounds map-making}, note = {cite arxiv:1910.02226Comment: 15 pages, 8 figures, submitted to MNRAS}, timestamp = {2019-10-21T07:36:59.000+0200}, title = {Producing Synthetic Maps of Dust Polarization using Velocity Channel Gradient Technique}, url = {http://arxiv.org/abs/1910.02226}, year = 2019 }