Pith Number

pith:T5KXWB24

pith:2026:T5KXWB24SXC26GR4FM6TXCN425

not attested not anchored not stored refs resolved

CIAO: Chandra's Data Analysis System for X-Ray Astronomy and Beyond

Aneta Siemiginowska, Antonella Fruscione, David A. Principe, David Huenemoerder, Douglas Burke, Hans Moritz Guenther, Ian N. Evans, Janet D. Evans, Jonathan McDowell, Joseph B. Miller, Kenny Glotfelty, Mark Cresitello Dittmar, Melania Nynka, Nicholas P. Lee, Warren McLaughlin, William Joye

CIAO supplies modular tools for calibration, spectral, imaging and timing analysis of Chandra X-ray data while keeping workflows consistent with the observatory pipeline.

arxiv:2605.14144 v1 · 2026-05-13 · astro-ph.IM

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\usepackage{pith}
\pithnumber{T5KXWB24SXC26GR4FM6TXCN425}

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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

CIAO provides tools for calibration, spectral, imaging, and timing analysis, together with high-level scripts and the Sherpa modeling and fitting application. Its modular design and unified data model allow users to build flexible analysis workflows while maintaining consistency with the Chandra data processing pipeline.

C2weakest assumption

The assumption that the described modular design and unified data model have successfully enabled flexible workflows without major inconsistencies or usability barriers over 25 years of use.

C3one line summary

CIAO is a mature, modular software system for X-ray astronomy data analysis that has supported the Chandra mission since 1999 with calibration, imaging, spectral, timing, modeling, and simulation capabilities.

References

66 extracted · 66 resolved · 1 Pith anchors

[1] 2011, Handbook of X-ray Astronomy (Cambridge University Press) 2011

[2] Arnaud, K. A. 1996, in Astronomical Society of the Pacific Conference Series, Vol. 101, Astronomical Data Analysis Software and Systems V, ed. G. H. Jacoby & J. Barnes, 17 1996

[3] New Features in AST - a WCS Management and Manipulation Library 2012 · doi:10.48550/arxiv.1210.5483

[4] Bouquin, D. R., Chivvis, D. A., Henneken, E., et al. 2020, ApJS, 249, 8, doi: 10.3847/1538-4365/ab7be6 2020 · doi:10.3847/1538-4365/ab7be6

[5] Broos, P. S., Townsley, L. K., Feigelson, E. D., et al. 2010, ApJ, 714, 1582, doi: 10.1088/0004-637X/714/2/1582 2010 · doi:10.1088/0004-637x/714/2/1582

Formal links

2 machine-checked theorem links

Cited by

1 paper in Pith

JWST observations of a planetary nebula support jet-driven explosion of core-collapse supernova remnant RCW 103

Receipt and verification

First computed	2026-05-17T23:39:11.651151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f557b075c95c5af1a3c2b3d3b89bcd7741ef2fddedae4405632bc5ad424bc0a

Aliases

arxiv: 2605.14144 · arxiv_version: 2605.14144v1 · doi: 10.48550/arxiv.2605.14144 · pith_short_12: T5KXWB24SXC2 · pith_short_16: T5KXWB24SXC26GR4 · pith_short_8: T5KXWB24

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/T5KXWB24SXC26GR4FM6TXCN425 \
  | 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: 9f557b075c95c5af1a3c2b3d3b89bcd7741ef2fddedae4405632bc5ad424bc0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4870feb93bc7f8819db6dfadc718829cc5b8b26302a365bec0f75925d0ad6cd6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-05-13T21:50:50Z",
    "title_canon_sha256": "53aecb2838d23357d866b23cc19142834488c46e9fc358807bcf84f98707cf1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14144",
    "kind": "arxiv",
    "version": 1
  }
}