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A Full-Sky H-alpha Template for Microwave Foreground Prediction

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arxiv astro-ph/0301558 v1 pith:E6HEX4O4 submitted 2003-01-28 astro-ph

Douglas P. Finkbeiner This is my paper
classification astro-ph
keywords h-alphasurveycompositefull-skyarcminatlasavailablebremsstrahlung
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A full-sky H-alpha map with 6 arcmin (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 degree 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 WWW for public use.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. MIGHTEE-HI: Environmental effects of cosmic filaments on extragalactic HI detections in the COSMOS and XMM-LSS fields

    astro-ph.GA 2026-08 conditional novelty 6.0 of 10

    Filaments in the cosmic web measurably change how often galaxies are detected in HI, reducing detections in low-density late-type galaxies and enhancing them in massive early-type galaxies.

  2. GeV {\gamma}-ray emission in the low-mass star-forming region AFGL 490

    astro-ph.HE 2026-05 unverdicted novelty 6.0 of 10

    Discovery of extended GeV gamma-ray emission from AFGL 490, with the protostellar jet identified as the likely particle accelerator rather than stellar winds.

  3. Early phases of star formation with SKAO: synchrotron emission from dense starless cores in molecular clouds

    astro-ph.GA 2026-06 unverdicted novelty 4.0 of 10

    SKAO will enable detection of synchrotron emission from prestellar cores to probe their magnetic field properties in nearby star-forming regions.

  4. Understanding the non-Gaussian nature of Galactic foreground emissions towards small scales

    astro-ph.CO 2026-06 unverdicted novelty 4.0 of 10

    Galactic foregrounds display a universal excess-kurtosis non-Gaussian signature stable across scales that arises from heavy-tailed one-point statistics plus steep spatial correlations.

  5. Diffuse gamma-ray emission in the vicinity of open cluster Berkeley 87

    astro-ph.HE 2026-05 unverdicted novelty 4.0 of 10

    Diffuse gamma-ray emission detected toward Berkeley 87 with 0.36° extension and photon index 2.68, favoring a hadronic origin due to dense gas and stellar winds.

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