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Astrometry with Hubble Space Telescope Fine Guidance Sensor 3: The Parallax of the Cataclysmic Variable RW Triangulum

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Paper breakdownThe authors' claims, conditions and measurements, as JSON Signed receiptProof this review has not been altered
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B. E. McArthur, G. F. Benedict, J. Lee, C. -L. Lu, W. F. van Altena, C. P. Deliyannis, T. Girard, L. W. Fredrick
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E. Nelan, R. L. Duncombe, P. D. Hemenway, W. H. Jefferys, P. J. Shelus, O. G. Franz, L. H. Wasserman

Astrophysics · Submitted 21 May 1999

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim This determination puts the distance of RW Tri at 341, one of the most distant objects with a direct parallax measurement.

how it is stated · asserted 1.00 read the record →

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arXiv IDastro-ph/9905284 (version 1)
Pith IDELKWILH6, Pith's permanent record of this paper and its review
CitationB. E. McArthur, C. -L. Lu, C. P. Deliyannis, E. Nelan, G. F. Benedict, J. Lee, L. H. Wasserman, L. W. Fredrick, O. G. Franz, P. D. Hemenway, P. J. Shelus, R. L. Duncombe, T. Girard, W. F. van Altena, W. H. Jefferys. "Astrometry with Hubble Space Telescope Fine Guidance Sensor 3: The Parallax of the Cataclysmic Variable RW Triangulum." arXiv:astro-ph/9905284 (1999). https://pith.science/paper/ELKWILH6
Claim paper

The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

Open the compiled record

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,268 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.87 · states limitation 0.18 · human participants 0.02 · controlled comparison 0.05 · randomized assignment 0.01 · states quantitative result 0.98 · compares with prior results 0.92 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

RW Triangulum (RW Tri) is a 13th magnitude Nova-like Cataclysmic Variable star with an orbital period of 0.2319 days (5.56 hours). Infrared observations of RW Tri indicate that its secondary is most likely a late K-dwarf. Past analyses predicted a distance of 270 parsec, derived from a black-body fit to spectrum of the central part of the disk. Recently completed Hubble Space Telescope Fine Guidance Sensor interferometric observations allow us to determine the first trigonometric parallax to RW Tri. This determination puts the distance of RW Tri at 341, one of the most distant objects with a direct parallax measurement.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 RW Triangulum (RW Tri) is a 13th magnitude Nova-like Cataclysmic Variable star with an orbital period of 0.2319 days (5.56 hours). background 1.00 0.16 0.02 asserted 1.00
s1 Infrared observations of RW Tri indicate that its secondary is most likely a late K-dwarf. background 0.98 0.19 0.02 hedged possibility 1.00
s2 Past analyses predicted a distance of 270 parsec, derived from a black-body fit to spectrum of the central part of the disk. background 0.99 0.05 0.02 asserted 0.98
s3 Recently completed Hubble Space Telescope Fine Guidance Sensor interferometric observations allow us to determine the first trigonometric parallax to RW Tri. contribution 0.50 0.88 0.14 asserted 0.91
s4 This determination puts the distance of RW Tri at 341, one of the most distant objects with a direct parallax measurement. result 0.98 0.94 0.89 asserted 1.00

What kind of paper the classifier reports this is: empirical study 1.00 · evidence from observation or experiment 0.96.

What was examined, and what was not

sources read
  • arXiv listing abstract v1
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
levels run
  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

RW Triangulum (RW Tri) is a 13th magnitude Nova-like Cataclysmic Variable star with an orbital period of 0.2319 days (5.56 hours). Infrared observations of RW Tri indicate that its secondary is most likely a late K-dwarf. Past analyses predicted a distance of 270 parsec, derived from a black-body fit to spectrum of the central part of the disk. Recently completed Hubble Space Telescope Fine Guidance Sensor interferometric observations allow us to determine the first trigonometric parallax to RW Tri. This determination puts the distance of RW Tri at 341, one of the most distant objects with a direct parallax measurement.

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