{
  "abstract": "Anomalous microwave emission (AME) is 30 GHz-peaking continuum emission thought to arise from spinning dust grains. Observations suggest that the local environment shapes the AME spectral energy distribution (SED), so building a spatially resolved sample of AME regions is a key step towards understanding its emission mechanism. Using the Green Bank Telescope Ku-band receiver, we obtained a ~1 arcmin resolution map of radius 1.25 deg centered on G107.2+5.20. Our first objective was to constrain the low-frequency side of the AME SED with 13 GHz data. Using matched-resolution aperture photometry, we measure the SED from 408 MHz-3 THz and fit two emission models: one including spinning dust, the other optically thick free-free emission. We find that the spinning dust model is superior, with an amplitude of $14.1\\pm1.1$ Jy and a peak frequency of $27\\pm2$ GHz. Our second objective was to spatially locate excess 13 GHz emission consistent with spinning dust. We compare our Ku-band map to multi-wavelength gas and dust tracers at ~4 arcmin resolution. We observe two sources of 13 GHz excess at 3$σ$ significance consistent with spinning dust emission, though potential contributions from optically thick free-free emission remain ambiguous. ``Region A'' (G106.95+5.19) is spatially coincident with peak dust radiance. ``Region B'' (G107.08+4.90) is spatially coincident with peak PAH abundance. If regions A and B are indeed sources of spinning dust emission, they are a resolved example of how AME-dust correlation varies with environment.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Mon Not R Astron Soc (2026)",
  "arxiv": "2607.14084",
  "author_total": 8,
  "authors": [
    {
      "name": "Jordan E. Shroyer"
    },
    {
      "name": "Bradley R. Johnson"
    },
    {
      "name": "Dillon J. Bass"
    },
    {
      "name": "Anna Dignan"
    },
    {
      "name": "Stuart E. Harper"
    },
    {
      "name": "Brian S. Mason"
    },
    {
      "name": "Andrey Moore"
    },
    {
      "name": "Eric J. Murphy"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6egzh7h3z138q.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.14084",
  "fulltext_url": null,
  "id": "6egzh7h3z138q",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.14084",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "arxiv",
      "astro-ph.GA"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.14084",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6egzh7h3z138q.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:24Z",
      "native_id": "2607.14084",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.14084"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Investigating anomalous microwave emission near G107.2+5.20 in Ku-band with the Green Bank Telescope",
  "title_text": "Investigating anomalous microwave emission near G107.2+5.20 in Ku-band with the Green Bank Telescope",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/6egzh7h3z138q",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1922",
      "pid": "6639967ztgfzr",
      "relation": "published-as",
      "title": "Investigating anomalous microwave emission near G107.2+5.20 in Ku band with the Green Bank Telescope",
      "venue": "Monthly Notices of the Royal Astronomical Society"
    }
  ]
}