edges_analysis.sky_models.WhamHAlpha

edges_analysis.sky_models.WhamHAlpha(min_nside=1, max_nside=1267650600228229401496703205376)

The WHAM H-alpha all-sky map.

The Wisconsin H-Alpha Mapper (WHAM) made a survey of H alpha intensity over the full sky with a 1 degree beam and velocity resolution of 12 km/s. The WHAM public data release DR1 includes a data product containing H alpha intensity integrated between -80 and +80 km/s LSR velocity for each observed sky position. The Centre d’Analyse de Données Etendues group used these data to form an all-sky HEALPix format map following method described in Appendix A of Paradis etal 2012 Their HEALPix map is provided here. LAMBDA made a new version of their FITS file with minor changes to the headers to make them compliant with FITS standards.