Pith Number

pith:YPZHCBRU

pith:2026:YPZHCBRU3FCPC5HOGWU6OQNUAM

not attested not anchored not stored refs resolved

A Spatially Resolved HI Survey of Seyfert Galaxies: the Role of AGN Feedback in Shaping Atomic Gas Reservoirs

Chen Xu, Chuan-Peng Zhang, Daizhong Liu, Fujia Li, Hang Zhou, Hong-Xin Zhang, Hui Shi, Jing Wang, Le Zhang, Mengting Ju, Ming Zhu, Ningyu Tang, Pengfei Ren, Ruitian Li, Shengzhe Wang, Sijia Li, Xiao-Lei Meng, Xin Wang, Xinwen Shu, Yiming Yang, Yuxuan Pang, Zheng Zheng

Seyfert galaxy HI disks follow the same mass-size relation as star-forming spirals within uncertainties.

arxiv:2605.12973 v1 · 2026-05-13 · astro-ph.GA

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\usepackage{pith}
\pithnumber{YPZHCBRU3FCPC5HOGWU6OQNUAM}

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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

AGN feedback does not significantly disrupt the global extent or large-scale structure of atomic gas reservoirs, as the measured HI mass-size relation slope remains consistent with the canonical value within 2 sigma uncertainties.

C2weakest assumption

The small sample of eight Seyfert galaxies is representative of the broader AGN population and that direct comparison to large samples of star-forming spirals is valid without major selection biases.

C3one line summary

Seyfert AGN hosts show an HI mass-size relation consistent with normal galaxies within 2 sigma, with one galaxy displaying elevated velocity dispersion suggestive of AGN-driven turbulence.

References

91 extracted · 91 resolved · 2 Pith anchors

[1] Abazajian, K. N., Adelman-McCarthy, J. K., Ag¨ ueros, M. A., et al. 2009, ApJS, 182, 543, doi: 10.1088/0067-0049/182/2/543 Astropy Collaboration, Price-Whelan, A. M., Lim, P. L., et al. 2022, ApJ, 935 2009 · doi:10.1088/0067-0049/182/2/543

[2] R., Wuyts, S., F¨ orster Schreiber, N 2021 · doi:10.1093/mnras/stab780

[3] Baldwin, J. A., Phillips, M. M., & Terlevich, R. 1981, PASP, 93, 5, doi: 10.1086/130766 1981 · doi:10.1086/130766

[4] 2006, A&A, 447, 49, doi: 10.1051/0004-6361:20053210 2006 · doi:10.1051/0004-6361:20053210

[5] Begeman, K. G. 1989, A&A, 223, 47 1989

Receipt and verification

First computed	2026-05-18T03:09:08.879602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3f2710634d944f174ee35a9e741b40327b4eb94d79f36ca396ac5e2fa745b42

Aliases

arxiv: 2605.12973 · arxiv_version: 2605.12973v1 · doi: 10.48550/arxiv.2605.12973 · pith_short_12: YPZHCBRU3FCP · pith_short_16: YPZHCBRU3FCPC5HO · pith_short_8: YPZHCBRU

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/YPZHCBRU3FCPC5HOGWU6OQNUAM \
  | 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: c3f2710634d944f174ee35a9e741b40327b4eb94d79f36ca396ac5e2fa745b42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7ad859b9b2f75b86493d73c8bc574a3bc5988aaefdf5971360273d9ffefae89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-13T04:10:59Z",
    "title_canon_sha256": "c65476c3ce45079b07f8899eb8e557de9a647b625b2af2510bf58e02801d8581"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12973",
    "kind": "arxiv",
    "version": 1
  }
}