Instrumentation and Methods for Astrophysics · arXiv:1007.5141 v1 · submitted 29 Jul 2010
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The paper says
“PAFs turn radio telescopes into very effective survey instruments.”
from the abstract · picked out as the main claim by a classifier
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The paper
Abstract
We describe a Phased Array Feed (PAF) system, called Apertif, which will be installed in the Westerbork Synthesis Radio Telescope (WSRT). The aim of Apertif is, at frequencies from 1.0 to 1.7 GHz, to increase the instantaneous field of view of the WSRT 8 deg^2 and its observing bandwidth to 300 MHz with high spectral resolution. This system will turn the WSRT into an effective survey telescope with scientific applications ranging from deep surveys of the northern sky of HI and OH emission and polarised continuum to efficient searches for pulsars and transients. We present results obtained with a prototype PAF installed in one of the WSRT dishes. These results demonstrate that at decimetre wavelengths PAFs have excellent performance and that even for a single beam on the sky they outperform single feed radio dishes. PAFs turn radio telescopes into very effective survey instruments. Apertif is now fully funded and the community is invited to express their interest in using Apertif (http://www.astron.nl/radio-observatory/call-expressions-interest-apertif-surveys )
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. No sentence in this record was written by a model.
abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: asserted 1.00
What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.19 · human participants 0.02 · controlled comparison 0.40 · randomized assignment 0.01 · states quantitative result 0.78 · compares with prior results 0.74 · mentions code or data availability 0.03
The abstract, sentence by sentence
This table labels the abstract only (arXiv listing abstract v1). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| We describe a Phased Array Feed (PAF) system, called Apertif, which will be installed in the Westerbork Synthesis Radio Telescope (WSRT). | contribution 0.82 | 0.53 | 0.04 | asserted 0.99 |
| The aim of Apertif is, at frequencies from 1.0 to 1.7 GHz, to increase the instantaneous field of view of the WSRT 8 deg^2 and its observing bandwidth to 300 MHz with high spectral resolution. | contribution 0.74 | 0.13 | 0.08 | asserted 0.98 |
| This system will turn the WSRT into an effective survey telescope with scientific applications ranging from deep surveys of the northern sky of HI and OH emission and polarised continuum to efficient searches for pulsars and transients. | contribution 0.44 | 0.12 | 0.13 | asserted 0.98 |
| We present results obtained with a prototype PAF installed in one of the WSRT dishes. | contribution 0.73 | 0.95 | 0.04 | asserted 0.98 |
| These results demonstrate that at decimetre wavelengths PAFs have excellent performance and that even for a single beam on the sky they outperform single feed radio dishes. | interpretation 0.69 | 0.88 | 0.41 | asserted 1.00 |
| PAFs turn radio telescopes into very effective survey instruments. | interpretation 0.99 | 0.23 | 0.53 | asserted 1.00 |
| Apertif is now fully funded and the community is invited to express their interest in using Apertif (http://www.astron.nl/radio-observatory/call-expressions-interest-apertif-surveys ) | future work 0.97 | 0.18 | 0.03 | asserted 0.99 |
What kind of paper the classifier reports this is: method or tool 0.95 · evidence from observation or experiment 1.00
What was examined, and what was not
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- arXiv listing abstract v1
Not examined
- full text
- figures and tables
- references and citing sentences
- relations to other papers
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- S sections
- T body sentences
- C citations
- R cross-paper relations
How the labels were made
Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 5,667 input tokens, $0.0002 reported.
Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. This record as JSON
Cited by 2 Pith papers
Reviewed papers on Pith that cite this one. The full citation record
How the literature uses it
18 arXiv papers cite this in 18 sentences
Papers citing it · 11 sentences without a confident label
Uses its method or tool 1 paper
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Here, we present a follow-up of GW190425 with the new Apertif phased array feeds [ref] on the Westerbork Synthesis Radio Telescope (WSRT).
A search for radio emission from double-neutron star merger GW190425 using Apertif · Introduction · 0.88
Cites it as background 6 papers
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As a consequence, the growth of perturbations is different compared to what predicted in the model, and can be tested by present and oncoming surveys designed to probe the large-scale cosmic structure, such as the Dark Energy Survey[] [ref] , Euclid[] [ref] , Pan-STARRS[] or the Large Synoptic Survey Telescope[] [ref] in the optical and near infrared bands, or the Square Kilometre Array[] [ref] and its pathfinders [ref] in the radio band.
Detectability of Torsion Gravity via Galaxy Clustering and Cosmic Shear Measurements · Introduction · 0.91
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With the advent of deep and wide area surveys in X-rays (e.g. eROSITA, Athena) and radio (e.g., ASKAP/ EMU: [ref] ; LOFAR: [ref] ; APERTIF: [ref] ), will provide a powerful and reliable counterpart identification tool.
Finding counterparts for All-sky X-ray surveys with Nway: a Bayesian algorithm for cross-matching multiple catalogues · NWAY release · 0.81
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Another trend is developments of receiving elements suitable for phased array feeds (PAF, [ref] ) or focal plane arrays on one hand, and large-scale aperture phased arrays on the other hand, [ref] .
The science case and challenges of space-borne sub-millimeter interferometry · THEZA receivers and analogue electronics · 0.80
Challenges and discussion
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