Finkbeiner, Douglas2017-07-182003Finkbeiner, Douglas P. 2003. “A Full-Sky Hα Template for Microwave Foreground Prediction.” The Astrophysical Journal Supplement Series 146 (2) (June): 407–415. doi:10.1086/374411.0067-0049http://nrs.harvard.edu/urn-3:HUL.InstRepos:33462892A full-sky Hα map with 6' (FWHM) resolution is presented. This map is a composite of the Virginia Tech Spectral line Survey (VTSS) in the north and the Southern H-Alpha Sky Survey Atlas (SHASSA) in the south. The Wisconsin H-Alpha Mapper (WHAM) survey provides a stable zero point over 3/4 of the sky on a 1° scale. This composite map can be used to provide limits on thermal bremsstrahlung (free-free emission) from ionized gas known to contaminate microwave-background data. The map is available on the World Wide Web for public use.en-USdust, extinctionH ii regionsISM: cloudsJournal Article2017-05-1620032017-07-1810.1086/374411