Limits on gravitational wave emission from selected pulsars using LIGO data

A.G. Lyne; et al; M. Kramer; The LIGO Scientific Collaboration: B. Abbott

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Limits on gravitational wave emission from selected pulsars using LIGO data

The LIGO Scientific Collaboration: B. Abbott, et al, M. Kramer, A.G. Lyne

General Relativity and Quantum Cosmology · Submitted 1 Oct 2004

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

The authors' main claim We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multi-detector analysis of the data collected during the second science run of the LIGO interferometric detectors.

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arXiv IDgr-qc/0410007 (version 2)

Pith IDSN7ZPOFG, Pith's permanent record of this paper and its review

CitationA.G. Lyne, et al, M. Kramer, The LIGO Scientific Collaboration: B. Abbott. "Limits on gravitational wave emission from selected pulsars using LIGO data." arXiv:gr-qc/0410007 (2004). https://pith.science/paper/SN7ZPOFG

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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.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,255 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.84 · states limitation 0.31 · human participants 0.02 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.98 · compares with prior results 0.55 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multi-detector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build radio-guided phase templates for the expected gravitational wave signals. The unprecedented sensitivity of the detectors allow us to set strain upper limits as low as a few times $10^{-24}$. These strain limits translate into limits on the equatorial ellipticities of the pulsars, which are smaller than $10^{-5}$ for the four closest pulsars.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multi-detector analysis of the data collected during the second science run of the LIGO interferometric detectors.	contribution 0.81	0.97	0.61	asserted 1.00
s1	These are the first direct upper limits for 26 of the 28 pulsars.	contribution 0.42	0.89	0.19	asserted 1.00
s2	We use coordinated radio observations for the first time to build radio-guided phase templates for the expected gravitational wave signals.	method 0.70	0.95	0.04	asserted 1.00
s3	The unprecedented sensitivity of the detectors allow us to set strain upper limits as low as a few times $10^{-24}$.	result 0.99	0.80	0.14	asserted 1.00
s4	These strain limits translate into limits on the equatorial ellipticities of the pulsars, which are smaller than $10^{-5}$ for the four closest pulsars.	result 0.59	0.95	0.36	asserted 1.00

What kind of paper the classifier reports this is: empirical study 1.00 · evidence from analysis of existing data 0.87.

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arXiv listing abstract v2

not examined

full text
figures and tables
references and citing sentences
relations to other papers

levels run

P abstract

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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

We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multi-detector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build radio-guided phase templates for the expected gravitational wave signals. The unprecedented sensitivity of the detectors allow us to set strain upper limits as low as a few times $10^{-24}$. These strain limits translate into limits on the equatorial ellipticities of the pulsars, which are smaller than $10^{-5}$ for the four closest pulsars.

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References

How the literature uses it

5 arXiv papers cite this in 6 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers whose main result relates to this one's

Found among the papers closest to this one by title and main claim. Pith's classifier compared each pair's main results and a second model family confirmed the relation; checked against two further families, shown conflicts agreed 118 times in 120 and shown same results 218 times in 239. The quoted sentence is the other paper's main claim.

States the same result 1 paper

We present upper limits on the amplitude of gravitational waves from 28 isolated pulsars using data from the second science run of LIGO.

Searching for gravitational waves from known pulsars · 0.92

Papers citing it · 2 sentences without a confident label

Uses its method or tool 1 paper

As in, e.g., [ref] , following the method of [ref] , Bayesian inference can be used to produce a joint posterior probability density function on these four parameters, and the orientation parameters can be marginalized over to give a posterior on only $h_0$.

Hierarchical Bayesian method for detecting continuous gravitational waves from an ensemble of pulsars · Introduction · 0.96

Uses its data or values 1 paper

The lowest 95% upper limit on gravitational-waves amplitude was 1.7 × 10-24 for PSR J1910–5959D, and the smallest upper limit on ellipticity (again assuming the canonical moment of inertia) was 4.5 × 10-6 for the relatively-close pulsar PSR J2124–3358 [ref] , at a distance of 0.25 kpc.

Gravitational Wave Detection by Interferometry (Ground and Space) · Continuous sources · 0.97

Cites it as background 2 papers

In previous searches for known pulsars in gravitational wave data from the LIGO, Virgo and GEO600 detectors [ref] no signal has been seen, but upper limits, at a 95% credible level, were set on $h_0$ for all included pulsars.

Hierarchical Bayesian method for detecting continuous gravitational waves from an ensemble of pulsars · Introduction · 0.80
Over the last decade several searches have looked for from a large selection of known pulsars using data from the LIGO, GEO 600 and Virgo detectors [ref] .

A new code for parameter estimation in searches for gravitational waves from known pulsars · Introduction · 1.00

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