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The radio emission from the Galaxy at 22 MHz

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arxiv astro-ph/9902213 v1 pith:2JOIIGVJ submitted 1999-02-15 astro-ph

R.S.Roger , C.H.Costain , T.L.Landecker , C.M.Swerdlyk This is my paper · ORCID
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keywords emissionmapsradioextendedgalaxyabsorptionangleastrophysical
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We present maps of the 22MHz radio emission between declinations -28d and +80d, covering ~73% of the sky, derived from observations with the 22MHz radiotelescope at the Dominion Radio Astrophysical Observatory (DRAO). The resolution of the telescopt (EWxNS) is 1.1d x 1.7d secant(zenith angle). The maps show the large scale features of the emission from the Galaxy including the thick non-thermal disk, the North Polar Spur (NPS) and absorption due to discrete HII regions and to an extended band of thermal electrons within 40d of the Galactic centre. We give the flux densities of nine extended supernova remnants shown on the maps.

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Forward citations

Cited by 4 Pith papers

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

  1. Lunar Reflective Interferometry

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

    A lunar-orbiting spacecraft can use the Moon's surface as a virtual second antenna to build a two-element interferometer, enabling arcminute-scale imaging of the 0.1-10 MHz sky.

  2. Excess Radiation from Axion-Photon Conversion

    astro-ph.CO 2024-11 conditional novelty 6.0 of 10

    Resonant conversion of axion-like particles into photons in stochastic magnetic fields can produce an f^-2 radio excess matching ARCADE-2 and deepen the 21cm absorption trough seen by EDGES.

  3. Constraints on Primordial Black Holes from Galactic Diffuse Synchrotron Emissions

    hep-ph 2026-01 conditional novelty 5.0 of 10

    Galactic synchrotron emissions above 20 MHz can set tighter upper limits on the abundance of primordial black holes with masses above 10^16 grams than previous cosmic-ray electron data.

  4. Axion-Photon Conversion in FLRW with Primordial Magnetic Fields: Explaining the Radio Excess

    astro-ph.CO 2025-09 conditional novelty 4.0 of 10

    Resonant conversion of axion-like particles into photons in nanogauss primordial magnetic fields is claimed to explain both the ARCADE2 radio excess and the EDGES 21-cm trough for axion masses near 10^-14 to 10^-12 eV.

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