How to visualize portions of the CMB map?
Posted: February 04 2016
Using Healpix, I am working with patches of a full-sky map. Based on a set nside, we know the pixel indices and (roughly) the coordinates.
I would like to output these patches to see the data. The problem is (based on my understanding), Healpix does not allow one to plot small patches like this. You must output the entire map and mask unwanted pixels, e.g. http://imgur.com/AtH05JR
It appears that many in the community use other software to visualize portions of the CMB map, e.g. this arxiv paper: http://arxiv.org/pdf/1508.07005.pdf
So, I am curious how to visualize Planck data without using this Healpix scheme. There must be software out-there to visualize pixels from FITS without having to write it up from scratch.
Any help appreciated
I would like to output these patches to see the data. The problem is (based on my understanding), Healpix does not allow one to plot small patches like this. You must output the entire map and mask unwanted pixels, e.g. http://imgur.com/AtH05JR
It appears that many in the community use other software to visualize portions of the CMB map, e.g. this arxiv paper: http://arxiv.org/pdf/1508.07005.pdf
So, I am curious how to visualize Planck data without using this Healpix scheme. There must be software out-there to visualize pixels from FITS without having to write it up from scratch.
Any help appreciated