Pith Number

pith:6ZY4U7GG

pith:2026:6ZY4U7GGLYD2MADJ35GJGHGVFR

not attested not anchored not stored refs pending

The NUV transit of XO-3 b

Akihiko Fukui, George W. King, James T. Sikora, Jiayin Dong, Juliette Becker, Kohei Miyakawa, Lia Corrales, Lisa Dang, Raven Cilley, Robert Frazier, Teruyuki Hirano

NUV transit of hot Jupiter XO-3b is 30-70% deeper than optical and arrives 22 minutes late.

arxiv:2605.05068 v2 · 2026-05-06 · astro-ph.EP

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\usepackage{pith}
\pithnumber{6ZY4U7GGLYD2MADJ35GJGHGVFR}

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Record completeness

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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 NUV transit depth of Rp,NUV/R⋆ = 0.1371+0.016−0.019, which is 30-70% deeper than the optical transit. The transit center in the NUV is 22+13−11 minutes late compared to the optical ephemeris.

C2weakest assumption

That the observed NUV depth increase and late timing offset arise from atmospheric or bow-shock effects, given that the derived mass-loss rate is extremely small (~10^4 g/s) and the analytic magnetic model predicts an early rather than late transit.

C3one line summary

XO-3 b exhibits a 30-70% deeper NUV transit depth of 0.1371 and a 22-minute late center relative to the optical ephemeris, with an extremely low estimated mass-loss rate and a bow-shock model that predicts the opposite timing direction.

Receipt and verification

First computed	2026-05-25T02:01:21.773281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f671ca7cc65e07a60069df4c931cd52c783316584a784af9f03df79f0b6e5cb0

Aliases

arxiv: 2605.05068 · arxiv_version: 2605.05068v2 · doi: 10.48550/arxiv.2605.05068 · pith_short_12: 6ZY4U7GGLYD2 · pith_short_16: 6ZY4U7GGLYD2MADJ · pith_short_8: 6ZY4U7GG

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/6ZY4U7GGLYD2MADJ35GJGHGVFR \
  | 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: f671ca7cc65e07a60069df4c931cd52c783316584a784af9f03df79f0b6e5cb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac43b06495df867a846ee499f61a34318ce24a672563847289ffdd53ea61c3f0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-05-06T16:02:32Z",
    "title_canon_sha256": "13b2a58fd2f47b88af6a11699f9c4a27a7d2b01d388186f61f35e564a47cc63c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.05068",
    "kind": "arxiv",
    "version": 2
  }
}