Pith Number

pith:JFONTT4T

pith:2025:JFONTT4TIVPREZCDZZ4PWHR2SM

not attested not anchored not stored refs resolved

GFH-v2 Pipeline for Searches of Long-Transient Gravitational Waves from Newborn Magnetars

Alessio Orlandi, Cristiano Palomba, Dafne Guetta, Francesco Safai Tehrani, Gaetano Dinatale, Lorenzo Pierini, Lorenzo Silvestri, Paola Leaci, Pia Astone, Sabrina D'Antonio, Sandhya Sajith Menon, Sergio Frasca, Simone Dall'Osso, Stefano Dal Pra

The GFH-v2 algorithm improves sensitivity and speed for detecting long-transient gravitational waves from newborn magnetars.

arxiv:2512.09878 v2 · 2025-12-10 · astro-ph.IM · gr-qc

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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

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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

The updated framework achieves improved sensitivity and computational performance. These results provide a robust basis for future directed searches for long-transient gravitational-wave signals from core-collapse supernovae and other transient events in current and upcoming observing runs.

C2weakest assumption

The analysis assumes that the early spin-down of the magnetar is dominated by gravitational-wave emission and that simulated signal injections into LIGO-Virgo-KAGRA O4a data accurately represent the properties of real signals.

C3one line summary

GFH-v2 is an enhanced pipeline that improves sensitivity and computational performance for searching long-transient gravitational waves from newborn magnetars.

References

45 extracted · 45 resolved · 18 Pith anchors

[1] GFH-v2 Pipeline for Searches of Long-Transient Gravitational Waves from Newborn Magnetars 2025 · arXiv:2512.09878

[2] The choice ofT FFT depends on the expected signal evolu- tion

[3] Observation time window In contrast to previous searches where the observation timeT obs is often fixed, we adopt a strategy that opti- mizesT obs based on the signal amplitude decay. Specif- ically, 2023

[4] for more details. The sensitivity computation con- sists of several steps and starts from two basic quantities: the probability of selecting a noise peak (local maxima above the thresholdθ) in the pea

[5] Gravitational Waves from Neutron Stars: A Review 2015 · arXiv:1508.06643

Formal links

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Cited by

1 paper in Pith

GFH-v2 Pipeline for Searches of Long-Transient Gravitational Waves from Newborn Magnetars

Receipt and verification

First computed	2026-05-17T23:39:00.547972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

495cd9cf93455f126443ce78fb1e3a930c3db2da3635820a8204dbbaa8a3cb18

Aliases

arxiv: 2512.09878 · arxiv_version: 2512.09878v2 · doi: 10.48550/arxiv.2512.09878 · pith_short_12: JFONTT4TIVPR · pith_short_16: JFONTT4TIVPREZCD · pith_short_8: JFONTT4T

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/JFONTT4TIVPREZCDZZ4PWHR2SM \
  | 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: 495cd9cf93455f126443ce78fb1e3a930c3db2da3635820a8204dbbaa8a3cb18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b94b2ca4c295d0c8e02dfd2eba4e0713ffad40c4c9974d0c562742b01d48f8e",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-12-10T18:03:52Z",
    "title_canon_sha256": "790bdc020ffcfe582e7bb4c953cbe45818c62037afee48afe6fe7384c8c622a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.09878",
    "kind": "arxiv",
    "version": 2
  }
}