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The fraction of DA white dwarfs with kilo-Gauss magnetic fields

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S. Jordan, R. Aznar Cuadrado, R. Napiwotzki, H. M. Schmid, S. K. Solanki

Astrophysics · Submitted 30 Oct 2006

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

The authors' main claim Together with previous investigations, the fraction of kG magnetic fields in white dwarfs amounts to about 11-15%, which is close to the current estimations for highly magnetic white dwarfs (>1MG).

how it is stated · asserted 0.97 read the record →

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arXiv IDastro-ph/0610881 (version 1)
Pith IDNIB3TUL6, Pith's permanent record of this paper and its review
CitationH. M. Schmid, R. Aznar Cuadrado, R. Napiwotzki, S. Jordan, S. K. Solanki. "The fraction of DA white dwarfs with kilo-Gauss magnetic fields." arXiv:astro-ph/0610881 (2006). https://pith.science/paper/NIB3TUL6
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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, 4,545 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.35 · states limitation 0.96 · human participants 0.02 · controlled comparison 0.17 · randomized assignment 0.01 · states quantitative result 0.98 · compares with prior results 0.97 · mentions code or data availability 0.02.

The abstract, sentence by sentence

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

Current estimates for white dwarfs with fields in excess of 1MG are about 10%; according to our first high-precision circular-polarimetric study of 12 bright white dwarfs with the VLT (Aznar Cuadrado et al. 2004) this number increases up to about 25% in the kG regime. With our new sample of 10 white dwarf observations (plus one sdO star) we wanted to improve the sample statistics to determine the incident of kG magnetic fields in white dwarfs. In one of our objects (LTT7987) we detected a statistically significant (97% confidence level) longitudinal magnetic field varying between (-1+-0.5)kG and (+1+-0.5$)kG. This would be the weakest magnetic field ever found in a white dwarf, but at this level of accuracy, systematic errors cannot completely be ruled out. Together with previous investigations, the fraction of kG magnetic fields in white dwarfs amounts to about 11-15%, which is close to the current estimations for highly magnetic white dwarfs (>1MG).

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 Current estimates for white dwarfs with fields in excess of 1MG are about 10%; according to our first high-precision circular-polarimetric study of 12 bright white dwarfs with the VLT (Aznar Cuadrado et al. 2004) this number increases up to about 25% in the kG regime. background 0.74 0.77 0.10 asserted 0.94
s1 With our new sample of 10 white dwarf observations (plus one sdO star) we wanted to improve the sample statistics to determine the incident of kG magnetic fields in white dwarfs. contribution 0.87 0.71 0.03 asserted 0.63
s2 In one of our objects (LTT7987) we detected a statistically significant (97% confidence level) longitudinal magnetic field varying between (-1+-0.5)kG and (+1+-0.5$)kG. result 1.00 0.97 0.09 asserted 1.00
s3 This would be the weakest magnetic field ever found in a white dwarf, but at this level of accuracy, systematic errors cannot completely be ruled out. limitation 0.60 0.82 0.05 asserted 0.60
s4 Together with previous investigations, the fraction of kG magnetic fields in white dwarfs amounts to about 11-15%, which is close to the current estimations for highly magnetic white dwarfs (>1MG). result 0.79 0.60 0.80 asserted 0.97

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

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

Current estimates for white dwarfs with fields in excess of 1MG are about 10%; according to our first high-precision circular-polarimetric study of 12 bright white dwarfs with the VLT (Aznar Cuadrado et al. 2004) this number increases up to about 25% in the kG regime. With our new sample of 10 white dwarf observations (plus one sdO star) we wanted to improve the sample statistics to determine the incident of kG magnetic fields in white dwarfs. In one of our objects (LTT7987) we detected a statistically significant (97% confidence level) longitudinal magnetic field varying between (-1+-0.5)kG and (+1+-0.5$)kG. This would be the weakest magnetic field ever found in a white dwarf, but at this level of accuracy, systematic errors cannot completely be ruled out. Together with previous investigations, the fraction of kG magnetic fields in white dwarfs amounts to about 11-15%, which is close to the current estimations for highly magnetic white dwarfs (>1MG).

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