Pith Number

pith:HNMRHMRJ

pith:2026:HNMRHMRJZX2ZWYHPLEAGWWXOWI

not attested not anchored not stored refs resolved

Connecting the dusty dots: dust depletion and extinction of local interstellar clouds

A. De Cia, A. J. Fox, C. Ledoux, J.-K. Krogager, T. Ramburuth-Hurt

Dust depletion measurements from UV spectra can be matched to peaks in 3D extinction maps to locate individual gas clouds and map metals in the local Milky Way.

arxiv:2604.24752 v2 · 2026-04-27 · astro-ph.GA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HNMRHMRJZX2ZWYHPLEAGWWXOWI}

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

We show that it is possible to use complementary information from dust depletion and dust extinction to build more detailed maps of ISM metal and dust distributions.

C2weakest assumption

We assume a correlation between dust depletion and dust extinction density, which we use to imply that the absorption components are spatially associated with the peaks in dust extinction density.

C3one line summary

Dust depletion from UV spectra is associated with peaks in 3D extinction density maps to locate and chemically characterize local gas clouds at ~100 pc scales.

References

35 extracted · 35 resolved · 0 Pith anchors

[1] Bailer-Jones, C. A. L., Rybizki, J., Fouesneau, M., Demleitner, M., & Andrae, R. 2021, AJ, 161, 147 2021

[2] Bohlin, R. C., Savage, B. D., & Drake, J. F. 1978, ApJ, 224, 132 1978

[3] 2019, A&A, 623, A43 2019

[4] Cardelli, J. A., Clayton, G. C., & Mathis, J. S. 1989, ApJ, 345, 245 1989

[5] Clemens, D. P. 1985, ApJ, 295, 422 De Cia, A., Jenkins, E. B., Fox, A. J., et al. 2021, Nature, 597, 206 De Cia, A., Ledoux, C., Mattsson, L., et al. 2016, A&A, 596, A97 1985

Receipt and verification

First computed	2026-06-03T14:05:25.136971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b5913b229cdf59b60ef59006b5aeeb2285029ec70e2b1b0f467f66bf03df4c1

Aliases

arxiv: 2604.24752 · arxiv_version: 2604.24752v2 · doi: 10.48550/arxiv.2604.24752 · pith_short_12: HNMRHMRJZX2Z · pith_short_16: HNMRHMRJZX2ZWYHP · pith_short_8: HNMRHMRJ

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/HNMRHMRJZX2ZWYHPLEAGWWXOWI \
  | 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: 3b5913b229cdf59b60ef59006b5aeeb2285029ec70e2b1b0f467f66bf03df4c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d1cd6b55281adb0129d66cb541cf373716c18760179c0ab66a87a1133893d65",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-04-27T17:55:01Z",
    "title_canon_sha256": "2c5e5c6b0c17951a272aa4d3d9e59825363c014c60b751a817288b287befecf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.24752",
    "kind": "arxiv",
    "version": 2
  }
}