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A New Empirical Method of Estimation of the Far-Infrared Flux of Galaxies

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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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Hirohisa Nagata (1), Hiroshi Shibai (1), Tsutomu T. Takeuchi (2), Takashi Onaka (3) ((1) Nagoya University, (2) National Astronomical Observatory of Japan, (3) University of Tokyo)

Astrophysics · Submitted 11 Aug 2002

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

The authors' main claim The present method is more accurate than the previous one widely used to derive the total infrared flux from the IRAS 60 and 100 microns data.

how it is stated · asserted 1.00 read the record →

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arXiv IDastro-ph/0208218 (version 1)
Pith ID7OAG5NFR, Pith's permanent record of this paper and its review
Citation(2) National Astronomical Observatory of Japan, (3) University of Tokyo), Hirohisa Nagata (1), Hiroshi Shibai (1), Takashi Onaka (3) ((1) Nagoya University, Tsutomu T. Takeuchi (2). "A New Empirical Method of Estimation of the Far-Infrared Flux of Galaxies." arXiv:astro-ph/0208218 (2002). https://pith.science/paper/7OAG5NFR
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-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 6,481 input tokens.

What the abstract itself states, as probabilities: claims first 0.08 · states limitation 0.81 · human participants 0.01 · controlled comparison 0.28 · randomized assignment 0.01 · states quantitative result 0.99 · 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; .

We propose a new empirical method to estimate the total far-infrared flux of galaxies from the spectral energy distribution (SED) at wavelengths lambda shorter than 100 microns. It is difficult to derive the total far-infrared luminosity from only the IRAS data, though it is one of the most important properties of galaxies. Observations by Infrared Telescope in Space (IRTS) indicate that the SED of the diffuse emission from the Galactic plane in this wavelength region can be derived from the 60 microns to 100 microns color. This empirical SED relation was improved in order to obtain a better fit to the Galactic plane data for I(60 microns)/I(100 microns) > 0.6, and applied to 96 IRAS galaxies for which ISOPHOT and KAO data are available at lambda > 100 microns. As a result, the empirical relation describes well the far-infrared (FIR) SED for a majority of the galaxies. Additionally, the total FIR flux for lambda longer than 40 microns is derived from the flux densities at 60 and 100 microns by using this model. For the 96 IRAS galaxies, the uncertainty in the total far-infrared flux of the present method is 26%. The present method is more accurate than the previous one widely used to derive the total infrared flux from the IRAS 60 and 100 microns data.

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 We propose a new empirical method to estimate the total far-infrared flux of galaxies from the spectral energy distribution (SED) at wavelengths lambda shorter than 100 microns. contribution 1.00 0.86 0.24 asserted 0.94
s1 It is difficult to derive the total far-infrared luminosity from only the IRAS data, though it is one of the most important properties of galaxies. background 0.59 0.07 0.03 asserted 1.00
s2 Observations by Infrared Telescope in Space (IRTS) indicate that the SED of the diffuse emission from the Galactic plane in this wavelength region can be derived from the 60 microns to 100 microns color. background 0.83 0.17 0.03 hedged possibility 0.90
s3 This empirical SED relation was improved in order to obtain a better fit to the Galactic plane data for I(60 microns)/I(100 microns) > 0.6, and applied to 96 IRAS galaxies for which ISOPHOT and KAO data are available at lambda > 100 microns. method 0.94 0.91 0.07 asserted 1.00
s4 As a result, the empirical relation describes well the far-infrared (FIR) SED for a majority of the galaxies. result 0.94 0.91 0.41 asserted 0.99
s5 Additionally, the total FIR flux for lambda longer than 40 microns is derived from the flux densities at 60 and 100 microns by using this model. method 0.56 0.93 0.13 asserted 1.00
s6 For the 96 IRAS galaxies, the uncertainty in the total far-infrared flux of the present method is 26%. result 0.96 0.94 0.15 asserted 1.00
s7 The present method is more accurate than the previous one widely used to derive the total infrared flux from the IRAS 60 and 100 microns data. result 0.50 0.73 0.39 asserted 1.00

What kind of paper the classifier reports this is: method or tool 1.00 · evidence from analysis of existing data 0.99.

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

We propose a new empirical method to estimate the total far-infrared flux of galaxies from the spectral energy distribution (SED) at wavelengths lambda shorter than 100 microns. It is difficult to derive the total far-infrared luminosity from only the IRAS data, though it is one of the most important properties of galaxies. Observations by Infrared Telescope in Space (IRTS) indicate that the SED of the diffuse emission from the Galactic plane in this wavelength region can be derived from the 60 microns to 100 microns color. This empirical SED relation was improved in order to obtain a better fit to the Galactic plane data for I(60 microns)/I(100 microns) > 0.6, and applied to 96 IRAS galaxies for which ISOPHOT and KAO data are available at lambda > 100 microns. As a result, the empirical relation describes well the far-infrared (FIR) SED for a majority of the galaxies. Additionally, the total FIR flux for lambda longer than 40 microns is derived from the flux densities at 60 and 100 microns by using this model. For the 96 IRAS galaxies, the uncertainty in the total far-infrared flux of the present method is 26%. The present method is more accurate than the previous one widely used to derive the total infrared flux from the IRAS 60 and 100 microns data.

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