Pith Number

pith:LZY73ROX

pith:2026:LZY73ROXGAQPHSPWVGKOOQJBTL

not attested not anchored not stored refs resolved

Studying dark gaps in Ly-$\alpha$ forest transmission with large reionization simulations

Barun Maity, Benedetta Spina, Frederick B. Davies, Sarah E. I. Bosman

Simulations show that reionization ending near redshift 5.4 best matches the observed distribution of long dark gaps in the Ly-alpha forest.

arxiv:2602.00301 v2 · 2026-01-30 · astro-ph.CO

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\usepackage{pith}
\pithnumber{LZY73ROXGAQPHSPWVGKOOQJBTL}

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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 scenario involving a slightly later reionization completion (z∼5.4) provides the closest match, while a short constant mean free path model is disfavored by the data at lower redshifts. These findings give qualitative support for the emerging scenario of reionization end extending to z≤5.7, although they can not rule out a slightly early reionization with enhanced post-ionization ultraviolet background fluctuations.

C2weakest assumption

That varying only reionization redshift, IGM temperature, and ionizing-photon mean free path in the simulation suite captures the dominant physical drivers of dark-gap statistics without missing important effects such as inhomogeneous reionization or additional sources of UV fluctuations.

C3one line summary

Large reionization simulations show that the distribution of dark gaps in the Ly-α forest favors models with reionization completing at z≈5.4 over earlier or constant short mean-free-path scenarios.

References

49 extracted · 49 resolved · 0 Pith anchors

[1] Almgren, A. S., Bell, J. B., Lijewski, M. J., Luki ´c, Z., & Van Andel, E. 2013, ApJ, 765, 39 Bañados, E., Venemans, B. P., Mazzucchelli, C., et al. 2018, Nature, 553, 473 2013

[2] Barkana, R. & Loeb, A. 2001, Phys. Rep., 349, 125 2001

[3] Becker, G. D., Bolton, J. S., Madau, P., et al. 2015, MNRAS, 447, 3402 2015

[4] D., D’Aloisio, A., Christenson, H 2021

[5] Bosman, S. E. I., Davies, F. B., Becker, G. D., et al. 2022, MNRAS, 514, 55 2022

Cited by

1 paper in Pith

Reconciling large-scale Lyman-$\alpha$ correlations with the SCRIPT Semi-numerical Model

Receipt and verification

First computed	2026-06-19T16:10:34.711884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e71fdc5d73020f3c9f6a994e741219adc4bd8b81059b50345f72e13d2107869

Aliases

arxiv: 2602.00301 · arxiv_version: 2602.00301v2 · doi: 10.48550/arxiv.2602.00301 · pith_short_12: LZY73ROXGAQP · pith_short_16: LZY73ROXGAQPHSPW · pith_short_8: LZY73ROX

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/LZY73ROXGAQPHSPWVGKOOQJBTL \
  | 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: 5e71fdc5d73020f3c9f6a994e741219adc4bd8b81059b50345f72e13d2107869

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c2a5f5a7fe367224dd1271598ef25abaa1d864150214e806d6f70981bfec154",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-01-30T20:51:04Z",
    "title_canon_sha256": "a74b7777eb0174324788ee8b5a2acd55ec094c257ccf545518ba78fa9ce46d89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.00301",
    "kind": "arxiv",
    "version": 2
  }
}