hi all,
could i translate a general spherical map to HEALPix format?e.g the map of column density of HI gas :N_Hi, or E(B-V) map of the sky etc
could you give some advice?
thanks a lot![/b]
translating general spherical map to HEALPix format
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- Posts: 3
- Joined: May 26 2009
- Affiliation: Purple Mountain Observatory, Chinese Academy of Sciences
translating general spherical map to HEALPix format
If [tex]\theta[/tex] and [tex]\phi[/tex] of the 2D coordinate system are known, it can be translated to HEALPix pixel index by HEALPix IDL routine "ang2pix_xxxx". "xxxx" is "ring" or "nest" for different scheme.