Pith Number

pith:AQXSRROF

pith:2026:AQXSRROFNKUDMQRTM7RM536MOG

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DEFROST: Detecting Excess in Faraday Rotation thrOugh Sophisticated analysis Techniques

Andrea Cabriolu, Federica Govoni, Gianni Fenu, Jakob Roth, Martin Reineke, Matteo Murgia, Philipp Frank, Sebastian Hutschenreuter, Torsten A. Ensslin, Valentina Vacca

New algorithm separates Galactic and extragalactic Faraday rotation contributions while modeling noise.

arxiv:2605.13605 v1 · 2026-05-13 · astro-ph.IM · astro-ph.CO

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\usepackage{pith}
\pithnumber{AQXSRROFNKUDMQRTM7RM536MOG}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Considering noise values and density of polarized sources consistent with existing catalogs, we demonstrated that the most robust results are obtained with sources with absolute Galactic latitude > 45deg, with inference of the extragalactic parameters at most within 5sigma, both for dispersion in Faraday rotation of ~1 and 10rad/m2.

C2weakest assumption

The performance claims rest on the assumption that the synthetic data models accurately capture the statistical properties of real Galactic magnetic field power spectra, noise distributions, and source populations across the tested latitude cuts.

C3one line summary

DEFROST algorithm disentangles Galactic and extragalactic Faraday rotation in RM catalogs, recovering extragalactic parameters within 5 sigma for sources at absolute Galactic latitude above 45 degrees.

References

33 extracted · 33 resolved · 11 Pith anchors

[1] NIFTy5: Numerical Information Field Theory v5

[2] Nature Astronomy , keywords = 2002 · doi:10.1038/s41550-021-01548-0

[3] Faraday Rotation Measure Synthesis · doi:10.1051/0004-6361:20052990

[4] year = 1966, month = jan, volume = 1966 · doi:10.1093/mnras/133.1.67

[5] Magnetic field strength in cosmic web filaments. , keywords =. doi:10.1093/mnras/stac384 , archivePrefix =. 2202.04607 , primaryClass = · doi:10.1093/mnras/stac384

Receipt and verification

First computed	2026-05-18T02:44:22.870128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

042f28c5c56aa836423367e2ceefcc7199067804dd69fcc7afb09b6a2c89b4ac

Aliases

arxiv: 2605.13605 · arxiv_version: 2605.13605v1 · doi: 10.48550/arxiv.2605.13605 · pith_short_12: AQXSRROFNKUD · pith_short_16: AQXSRROFNKUDMQRT · pith_short_8: AQXSRROF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/AQXSRROFNKUDMQRTM7RM536MOG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 042f28c5c56aa836423367e2ceefcc7199067804dd69fcc7afb09b6a2c89b4ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f33feaf0a376003fa6ec822a451f9ed6126a4d664dafe9e229e624c1fafd1a2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-05-13T14:40:05Z",
    "title_canon_sha256": "3c5674039e22350215dfdebab634c571da058e03275765b28e9988e67cda2959"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13605",
    "kind": "arxiv",
    "version": 1
  }
}