Pith Number

pith:6LY3ZORH

pith:2026:6LY3ZORH2ZBCUTVMX7KJKXQT4R

not attested not anchored not stored refs resolved

Detecting the Axion-Photon Conversion Background

Felix Weber, Vikram Ravi

A collective radio background from axion conversion in galactic neutron star magnetospheres reaches detectable levels with current telescopes.

arxiv:2605.15175 v1 · 2026-05-14 · astro-ph.HE

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\usepackage{pith}
\pithnumber{6LY3ZORH2ZBCUTVMX7KJKXQT4R}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

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

we find a significant background signal emanating from such magnetospheres in the Milky Way. This signal, while weak in absolute power (≳ 1 mJy sr^{-1} from the Galactic Center, at 2 GHz), can be detected through new statistical techniques with current instrumentation like the Atacama Large Millimeter Array (ALMA) at high radio frequencies (200 - 950 GHz).

C2weakest assumption

The heuristic Galactic model accurately captures the spatial distribution, number density, and magnetospheric properties of neutron stars, and the axion-photon conversion efficiencies derived in prior work apply without significant modification to the integrated galactic population.

C3one line summary

Neutron star magnetospheres across the Milky Way produce a faint but statistically detectable axion-photon conversion radio background, while interstellar medium signals are too weak for current instruments.

References

40 extracted · 40 resolved · 2 Pith anchors

[1] P Log-Uniform P1 2 ms P2 15 ms ρ2 χ2 k 2 σρ 5 kpc z Exponential z0 1 kpc B Log-Normal µB 12.5 [log10 G] σB 0.7 [log10 G] TABLE I 2018

[2] ˆµn q r N An #1/n where: (A3) An =    (2n)! 2nn! if n is odd, 1 2nn!

[3] Zwicky, Die Rotverschiebung von extragalaktischen Nebeln, Helvetica Physica Acta6, 110 (1933) 1933

[4] R. D. Peccei and H. R. Quinn, CP conservation in the presence of pseudoparticles, Phys. Rev. Lett.38, 1440 (1977) 1977

[5] Wilczek, Problem of strong P and T invariance in the presence of instantons, Phys 1978

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T21:40:25.241328Z
Last reissued	2026-05-17T21:57:18.586355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

f2f1bcba27d6422a4eacbfd4955e13e4730ef13d253b1c6ae51a2c4534eb98db

Aliases

arxiv: 2605.15175 · arxiv_version: 2605.15175v1 · pith_short_12: 6LY3ZORH2ZBC · pith_short_16: 6LY3ZORH2ZBCUTVM · pith_short_8: 6LY3ZORH

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/6LY3ZORH2ZBCUTVMX7KJKXQT4R \
  | 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: f2f1bcba27d6422a4eacbfd4955e13e4730ef13d253b1c6ae51a2c4534eb98db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7356037ececbe5479b7cb8753b63b715752480e4a2957a5eeddf13eac9c473f2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-05-14T17:57:21Z",
    "title_canon_sha256": "e1f8657db62e709ee70cd0403dbfb8f3d073e61d733e21e67746b9c021ad116e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15175",
    "kind": "arxiv",
    "version": 1
  }
}