Truncated disc versus extremely broad iron line in XTE J1650-500

Chris Done; Marek Gierlinski

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Truncated disc versus extremely broad iron line in XTE J1650-500

Chris Done, Marek Gierlinski

Astrophysics · Submitted 20 Oct 2005

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

The authors' main claim The iron line smearing is then completely compatible with a truncated disc, so gives no information on the black hole spin.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,326 input tokens.

What the abstract itself states, as probabilities: claims first 0.06 · states limitation 0.84 · human participants 0.01 · controlled comparison 0.07 · randomized assignment 0.01 · states quantitative result 0.07 · compares with prior results 0.75 · 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.

There is growing evidence from both spectral and timing properties that there is a truncated inner accretion disc in low mass accretion rate Galactic black hole systems. The detection of extremely smeared relativistic iron lines in some of these systems is the only current piece of evidence which conflicts with this geometrical interpretation of the low/hard state. Here we show that the line width in the BeppoSAX data of a bright low/hard state of the transient black hole XTE J1650-500 is indeed consistent with extreme relativistic effects. However, the relativistic smearing can be significantly reduced if there is also resonance iron K line absorption from an outflowing disc wind. The iron line smearing is then completely compatible with a truncated disc, so gives no information on the black hole spin.

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	There is growing evidence from both spectral and timing properties that there is a truncated inner accretion disc in low mass accretion rate Galactic black hole systems.	background 1.00	0.05	0.03	hedged possibility 0.69
s1	The detection of extremely smeared relativistic iron lines in some of these systems is the only current piece of evidence which conflicts with this geometrical interpretation of the low/hard state.	background 0.90	0.06	0.04	asserted 0.99
s2	Here we show that the line width in the BeppoSAX data of a bright low/hard state of the transient black hole XTE J1650-500 is indeed consistent with extreme relativistic effects.	result 0.93	0.93	0.22	asserted 0.97
s3	However, the relativistic smearing can be significantly reduced if there is also resonance iron K line absorption from an outflowing disc wind.	interpretation 0.52	0.61	0.13	hedged possibility 0.79
s4	The iron line smearing is then completely compatible with a truncated disc, so gives no information on the black hole spin.	interpretation 1.00	0.63	0.80	asserted 0.96

What kind of paper the classifier reports this is: empirical study 0.82 · evidence from analysis of existing data 0.97.

What was examined, and what was not

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arXiv listing abstract v2

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full text
figures and tables
references and citing sentences
relations to other papers

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P abstract

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S sections
T body sentences
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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

There is growing evidence from both spectral and timing properties that there is a truncated inner accretion disc in low mass accretion rate Galactic black hole systems. The detection of extremely smeared relativistic iron lines in some of these systems is the only current piece of evidence which conflicts with this geometrical interpretation of the low/hard state. Here we show that the line width in the BeppoSAX data of a bright low/hard state of the transient black hole XTE J1650-500 is indeed consistent with extreme relativistic effects. However, the relativistic smearing can be significantly reduced if there is also resonance iron K line absorption from an outflowing disc wind. The iron line smearing is then completely compatible with a truncated disc, so gives no information on the black hole spin.

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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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Uses its method or tool 1 paper

Additionally, ad-hoc convolution reflection models were created that piece together expected shapes in different energy bands, such as rfxconv [ref] , which generates an angle-dependent reflection spectrum from a Comptonized input spectrum by combining the reflection emission from an ionized disk interpolated from reflionx [ref] below 14 keV (using the average 2–10 keV power-law index) with Compton reflected emission from pexriv [ref] above 14 keV (using the average 12–14 keV power-law index).

Reflecting on Accretion in Neutron Star Low-Mass X-ray Binaries · Reflection Modeling · 0.83

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