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Radiation hydrodynamics with Adaptive Mesh Refinement and application to prestellar core collapse. I Methods

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Benoit Commercon, Romain Teyssier, Edouard Audit, Patrick Hennebelle, Gilles Chabrier

Instrumentation and Methods for Astrophysics · Submitted 7 Feb 2011

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

The authors' main claim Radiative transfer has a strong impact on the collapse and the fragmentation of prestellar dense cores.

how it is stated · asserted 1.00 read the record →

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arXiv ID1102.1216 (version 3)
Pith IDBQKNOMH3, Pith's permanent record of this paper and its review
CitationBenoit Commercon, Edouard Audit, Gilles Chabrier, Patrick Hennebelle, Romain Teyssier. "Radiation hydrodynamics with Adaptive Mesh Refinement and application to prestellar core collapse. I Methods." arXiv:1102.1216 (2011). https://pith.science/paper/BQKNOMH3
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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, 9,846 input tokens, $0.0004 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.57 · human participants 0.01 · controlled comparison 0.15 · randomized assignment 0.01 · states quantitative result 0.38 · compares with prior results 0.97 · mentions code or data availability 0.04.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; .

Radiative transfer has a strong impact on the collapse and the fragmentation of prestellar dense cores. We present the radiation-hydrodynamics solver we designed for the RAMSES code. The method is designed for astrophysical purposes, and in particular for protostellar collapse. We present the solver, using the co-moving frame to evaluate the radiative quantities. We use the popular flux limited diffusion approximation, under the grey approximation (one group of photon). The solver is based on the second-order Godunov scheme of RAMSES for its hyperbolic part, and on an implicit scheme for the radiation diffusion and the coupling between radiation and matter. We report in details our methodology to integrate the RHD solver into RAMSES. We test successfully the method against several conventional tests. For validation in 3D, we perform calculations of the collapse of an isolated 1 M_sun prestellar dense core, without rotation. We compare successfully the results with previous studies using different models for radiation and hydrodynamics. We have developed a full radiation hydrodynamics solver in the RAMSES code, that handles adaptive mesh refinement grids. The method is a combination of an explicit scheme and an implicit scheme, accurate to the second-order in space. Our method is well suited for star formation purposes. Results of multidimensional dense core collapse calculations with rotation are presented in a companion paper.

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 Radiative transfer has a strong impact on the collapse and the fragmentation of prestellar dense cores. background 1.00 0.09 0.15 asserted 1.00
s1 We present the radiation-hydrodynamics solver we designed for the RAMSES code. contribution 0.98 0.93 0.05 asserted 0.99
s2 The method is designed for astrophysical purposes, and in particular for protostellar collapse. contribution 0.51 0.39 0.04 asserted 1.00
s3 We present the solver, using the co-moving frame to evaluate the radiative quantities. method 0.97 0.84 0.03 asserted 1.00
s4 We use the popular flux limited diffusion approximation, under the grey approximation (one group of photon). method 1.00 0.66 0.03 asserted 1.00
s5 The solver is based on the second-order Godunov scheme of RAMSES for its hyperbolic part, and on an implicit scheme for the radiation diffusion and the coupling between radiation and matter. method 1.00 0.77 0.04 asserted 1.00
s6 We report in details our methodology to integrate the RHD solver into RAMSES. method 0.77 0.91 0.03 asserted 0.99
s7 We test successfully the method against several conventional tests. result 0.56 0.94 0.07 asserted 1.00
s8 For validation in 3D, we perform calculations of the collapse of an isolated 1 M_sun prestellar dense core, without rotation. method 0.73 0.96 0.06 asserted 0.99
s9 We compare successfully the results with previous studies using different models for radiation and hydrodynamics. result 0.80 0.84 0.11 asserted 1.00
s10 We have developed a full radiation hydrodynamics solver in the RAMSES code, that handles adaptive mesh refinement grids. contribution 0.96 0.95 0.22 asserted 1.00
s11 The method is a combination of an explicit scheme and an implicit scheme, accurate to the second-order in space. method 0.99 0.86 0.08 asserted 1.00
s12 Our method is well suited for star formation purposes. interpretation 0.85 0.43 0.14 asserted 0.97
s13 Results of multidimensional dense core collapse calculations with rotation are presented in a companion paper. future work 0.65 0.61 0.04 asserted 0.98

What kind of paper the classifier reports this is: method or tool 1.00 · evidence from simulation or computation 1.00.

What was examined, and what was not

sources read
  • arXiv listing abstract v3
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • 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

Radiative transfer has a strong impact on the collapse and the fragmentation of prestellar dense cores. We present the radiation-hydrodynamics solver we designed for the RAMSES code. The method is designed for astrophysical purposes, and in particular for protostellar collapse. We present the solver, using the co-moving frame to evaluate the radiative quantities. We use the popular flux limited diffusion approximation, under the grey approximation (one group of photon). The solver is based on the second-order Godunov scheme of RAMSES for its hyperbolic part, and on an implicit scheme for the radiation diffusion and the coupling between radiation and matter. We report in details our methodology to integrate the RHD solver into RAMSES. We test successfully the method against several conventional tests. For validation in 3D, we perform calculations of the collapse of an isolated 1 M_sun prestellar dense core, without rotation. We compare successfully the results with previous studies using different models for radiation and hydrodynamics. We have developed a full radiation hydrodynamics solver in the RAMSES code, that handles adaptive mesh refinement grids. The method is a combination of an explicit scheme and an implicit scheme, accurate to the second-order in space. Our method is well suited for star formation purposes. Results of multidimensional dense core collapse calculations with rotation are presented in a companion paper.

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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

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