Deep Crustal Heating in a Multicomponent Accreted Neutron Star Crust

Andrew W. Steiner

RECORD

Deep Crustal Heating in a Multicomponent Accreted Neutron Star Crust

Andrew W. Steiner

Nuclear Theory · Submitted 15 Feb 2012

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

The authors' main claim The nuclear symmetry energy is an important uncertainty in the masses of the exotic nuclei in the inner crust and varying the symmetry energy changes the amount of deep crustal heating by as much as a factor of two.

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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, 4,259 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.86 · human participants 0.01 · controlled comparison 0.05 · randomized assignment 0.01 · states quantitative result 0.77 · compares with prior results 0.08 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

A quasi-statistical equilibrium model is constructed to simulate the multicomponent composition of the crust of an accreting neutron star. The ashes of rp-process nucleosynthesis are driven by accretion through a series of electron captures, neutron emissions, and pycnonuclear fusions up to densities near the transition between the neutron star crust and core. A liquid droplet model which includes nuclear shell effects is used to provide nuclear masses far from stability. Reaction pathways are determined consistently with the nuclear mass model. The nuclear symmetry energy is an important uncertainty in the masses of the exotic nuclei in the inner crust and varying the symmetry energy changes the amount of deep crustal heating by as much as a factor of two.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	A quasi-statistical equilibrium model is constructed to simulate the multicomponent composition of the crust of an accreting neutron star.	method 0.71	0.92	0.04	asserted 1.00
s1	The ashes of rp-process nucleosynthesis are driven by accretion through a series of electron captures, neutron emissions, and pycnonuclear fusions up to densities near the transition between the neutron star crust and core.	method 0.61	0.57	0.09	asserted 1.00
s2	A liquid droplet model which includes nuclear shell effects is used to provide nuclear masses far from stability.	method 1.00	0.72	0.03	asserted 1.00
s3	Reaction pathways are determined consistently with the nuclear mass model.	method 0.99	0.82	0.03	asserted 1.00
s4	The nuclear symmetry energy is an important uncertainty in the masses of the exotic nuclei in the inner crust and varying the symmetry energy changes the amount of deep crustal heating by as much as a factor of two.	result 0.92	0.78	0.61	asserted 0.96

What kind of paper the classifier reports this is: simulation study 0.93 · evidence from simulation or computation 1.00.

What was examined, and what was not

sources read

arXiv listing abstract v2

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

A quasi-statistical equilibrium model is constructed to simulate the multicomponent composition of the crust of an accreting neutron star. The ashes of rp-process nucleosynthesis are driven by accretion through a series of electron captures, neutron emissions, and pycnonuclear fusions up to densities near the transition between the neutron star crust and core. A liquid droplet model which includes nuclear shell effects is used to provide nuclear masses far from stability. Reaction pathways are determined consistently with the nuclear mass model. The nuclear symmetry energy is an important uncertainty in the masses of the exotic nuclei in the inner crust and varying the symmetry energy changes the amount of deep crustal heating by as much as a factor of two.

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References

How the literature uses it

7 arXiv papers cite this in 16 sentences

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

Papers citing it · 12 sentences without a confident label

Compares with it 1 paper

Using a multi-component liquid drop model slightly larger values where found in [ref] .

On the potential of probing the neutron star composition in accreting X-ray binaries · Estimating microphysical and astrophysical uncertainties · 0.87

Cites it as background 3 papers

Previously, the NS crust was studied within the so-called traditional approach, which assumes that crustal matter sinks deeper and deeper inside the star as a whole under the weight of newly accreted material [ref] .

Nonequilibrium thermodynamics of accreted neutron-star crust · Introduction · 0.81
They are based either on detailed [ref] or simplified [ref] reaction networks, theoretical atomic mass tables, liquid-drop approach [ref] , or on the density-functional theory [ref] .

Heat release in accreting neutron stars · Introduction · 0.92
Some of them used a one-component approximation [ref] , while others used reaction networks, allowing for mixtures of different nuclei [ref] .

Thermodynamically consistent equation of state for an accreted neutron star crust · Introduction · 0.90

What it cites · 1 sentence without a confident label

Compares with 1 paper

Except for the shell effects, the qualitative features agree with recent work in Ref. [ref] .

A survey of the parameter space of the compressible liquid drop model as applied to the neutron star inner crust · Results · 1.00

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