A Full‐Sky Hα Template for Microwave Foreground Prediction

2003/01/28 by Douglas P. Finkbeiner · 8 citations
Earth and Planetary Sciences · Environmental Science · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Atmospheric Ozone and Climate #Climate variability and models #astro-ph

paper · pdf · doi:10.1086/374411

published as Astrophys.J.Suppl.146:407,2003 · 20 pages, 7 figures, ApJS in press, get data at http://skymaps.info

arxiv created 2003/01/28 · openalex publication_date 2003/06/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

A 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.

Citations

• Cross-Correlation of Tenerife Data with Galactic Templates—Evidence for Spinning Dust?
• Physical Processes in the Interstellar Medium

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