Pith Number

pith:C5N4BETH

pith:2026:C5N4BETH2MR6IXJQRFLAXDEHL2

not attested not anchored not stored refs resolved

Modeling supernova feedback in galaxy formation simulations with energy-conserving momentum injection

Takashi Okamoto

A rest-frame kinetic energy correction for supernova momentum injection enables converged star formation histories in dwarf galaxy simulations.

arxiv:2603.17421 v2 · 2026-03-18 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C5N4BETH2MR6IXJQRFLAXDEHL2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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

Through cosmological zoom-in simulations of dwarf galaxies at two mass resolutions, we demonstrate good convergence in star formation histories; without the momentum correction, stellar mass in low-resolution runs falls to as low as 59% of that in high-resolution counterparts.

C2weakest assumption

That switching to purely thermal feedback when the cooling radius is resolved by the local inter-element separation prevents unphysical large-scale momentum coupling without introducing new artifacts in angular momentum or disk formation.

C3one line summary

A mechanical supernova feedback model conserves energy via rest-frame momentum injection and conditional thermal switching, yielding converged star formation histories in dwarf galaxy simulations at two resolutions.

References

66 extracted · 66 resolved · 0 Pith anchors

[1] V ., Leitner, S 2013

[2] Blondin, J. M., Wright, E. B., Borkowski, K. J., & Reynolds, S. P. 1998, ApJ, 500, 342 1998

[3] Bower, R. G., Benson, A. J., Malbon, R., et al. 2006, MNRAS, 370, 645 2006

[4] Campbell, S. W., & Lattanzio, J. C. 2008, A&A, 490, 769 2008

[5] 2003, PASP, 115, 763 2003

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-08T01:04:01.369996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

175bc09267d323e45d3089560b8c875e8e2c3b73cbaa9faff12bc8ba4656d461

Aliases

arxiv: 2603.17421 · arxiv_version: 2603.17421v2 · doi: 10.48550/arxiv.2603.17421 · pith_short_12: C5N4BETH2MR6 · pith_short_16: C5N4BETH2MR6IXJQ · pith_short_8: C5N4BETH

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/C5N4BETH2MR6IXJQRFLAXDEHL2 \
  | 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: 175bc09267d323e45d3089560b8c875e8e2c3b73cbaa9faff12bc8ba4656d461

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7414b7b37742c7a34ada4a61486bac45b97d29eb80f4b4e16f57e8a7f26a44ae",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-03-18T06:58:43Z",
    "title_canon_sha256": "3c5e8c52587c29444865582410ee2bb45409cf0cbe8ce1109d2b151c12d09ffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.17421",
    "kind": "arxiv",
    "version": 2
  }
}