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Self-Similar Shocked Accretion of Collisional Gas with Radiative Cooling

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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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M. G. Abadi (Observatorio Astronomico, Universidad Nacional de Cordoba), R. G. Bower (Department of Physics, University of Durham), J. F. Navarro (Department of Physics, Astronomy, University of Victoria)

Astrophysics · Submitted 26 Apr 1999

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

The authors' main claim This test problem lends support to the reliability of SPH techniques to model the complex process of galaxy formation.

how it is stated · hedged possibility 0.84 read the record →

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arXiv IDastro-ph/9904364 (version 1)
Pith ID3JURDASD, Pith's permanent record of this paper and its review
CitationAstronomy, J. F. Navarro (Department of Physics, M. G. Abadi (Observatorio Astronomico, R. G. Bower (Department of Physics, Universidad Nacional de Cordoba), University of Durham), University of Victoria). "Self-Similar Shocked Accretion of Collisional Gas with Radiative Cooling." arXiv:astro-ph/9904364 (1999). https://pith.science/paper/3JURDASD
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-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,966 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.25 · human participants 0.01 · controlled comparison 0.20 · randomized assignment 0.01 · states quantitative result 0.21 · compares with prior results 0.80 · mentions code or data availability 0.03.

The abstract, sentence by sentence

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

We describe similarity solutions that characterize the collapse of collisional gas onto scalefree perturbations in an Einstein-de Sitter universe. We consider the effects of radiative cooling and derive self-similar solutions under the assumption that the cooling function is a power law of density and temperature, $\Lambda(T,\rho) \propto \rho^{3/2} T$. We use these results to test the ability of Smooth Particle Hydrodynamics (SPH) techniques to follow the collapse and accretion of shocked, rapidly cooling gas in a cosmological context. Our SPH code reproduces the analytical results very well in cases that include or exclude radiative cooling. No substantial deviations from the predicted central mass accretion rates or from the temperature, density, and velocity profiles are observed in well resolved regions inside the shock radius. This test problem lends support to the reliability of SPH techniques to model the complex process of galaxy formation.

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 describe similarity solutions that characterize the collapse of collisional gas onto scalefree perturbations in an Einstein-de Sitter universe. contribution 0.99 0.88 0.06 asserted 0.99
s1 We consider the effects of radiative cooling and derive self-similar solutions under the assumption that the cooling function is a power law of density and temperature, $\Lambda(T,\rho) \propto \rho^{3/2} T$. contribution 0.51 0.95 0.04 asserted 0.98
s2 We use these results to test the ability of Smooth Particle Hydrodynamics (SPH) techniques to follow the collapse and accretion of shocked, rapidly cooling gas in a cosmological context. contribution 0.55 0.87 0.05 asserted 0.86
s3 Our SPH code reproduces the analytical results very well in cases that include or exclude radiative cooling. result 1.00 0.95 0.22 asserted 1.00
s4 No substantial deviations from the predicted central mass accretion rates or from the temperature, density, and velocity profiles are observed in well resolved regions inside the shock radius. result 1.00 0.94 0.18 asserted 1.00
s5 This test problem lends support to the reliability of SPH techniques to model the complex process of galaxy formation. interpretation 1.00 0.61 0.71 hedged possibility 0.84

What kind of paper the classifier reports this is: theoretical result 0.74 · evidence from simulation or computation 0.89.

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 describe similarity solutions that characterize the collapse of collisional gas onto scalefree perturbations in an Einstein-de Sitter universe. We consider the effects of radiative cooling and derive self-similar solutions under the assumption that the cooling function is a power law of density and temperature, $\Lambda(T,\rho) \propto \rho^{3/2} T$. We use these results to test the ability of Smooth Particle Hydrodynamics (SPH) techniques to follow the collapse and accretion of shocked, rapidly cooling gas in a cosmological context. Our SPH code reproduces the analytical results very well in cases that include or exclude radiative cooling. No substantial deviations from the predicted central mass accretion rates or from the temperature, density, and velocity profiles are observed in well resolved regions inside the shock radius. This test problem lends support to the reliability of SPH techniques to model the complex process of galaxy formation.

Human review

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How the literature uses it

1 arXiv paper cite this in 1 sentence

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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