Rediscovering the Tidal Tails of NGC 288 with Gaia DR2

Jason A. S. Hunt; Jeremy J. Webb; Natalie Price-Jones; Raymond Carlberg; Shaziana Kaderali

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Rediscovering the Tidal Tails of NGC 288 with Gaia DR2

Shaziana Kaderali, Jason A. S. Hunt, Jeremy J. Webb, Natalie Price-Jones, Raymond Carlberg

Astrophysics of Galaxies · Submitted 11 Sep 2018

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

The authors' main claim We find that both the simulation and the observations share comparable trends in the position on the sky and proper motions of the extra-tidal stars, supporting the presence of tidal tails around NGC 288.

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arXiv ID1809.04108 (version 2)

Pith IDZVS37Z7R, Pith's permanent record of this paper and its review

CitationJason A. S. Hunt, Jeremy J. Webb, Natalie Price-Jones, Raymond Carlberg, Shaziana Kaderali. "Rediscovering the Tidal Tails of NGC 288 with Gaia DR2." arXiv:1809.04108 (2018). https://pith.science/paper/ZVS37Z7R

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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-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,971 input tokens.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.25 · human participants 0.01 · controlled comparison 0.15 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.61 · mentions code or data availability 0.03.

The abstract, sentence by sentence

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

NGC 288 is a Galactic globular cluster having observed extra tidal structure, without confirmed tidal tails. $Gaia$ DR2 provides photometric and astrometric data for many of the stars in NGC 288 and its extra tidal structure. To compare with $Gaia$ data, we simulate an $N$-body model of a star cluster with the same orbit as NGC 288 in a Milky Way potential. The simulation shows that the cluster forms tidal tails that are compressed along the cluster's orbit when it is at apocentre and are expected to be a diffuse bipolar structure. In this letter, we present a comparison between the simulation and observations from $Gaia$ DR2. We find that both the simulation and the observations share comparable trends in the position on the sky and proper motions of the extra-tidal stars, supporting the presence of tidal tails around NGC 288.

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	NGC 288 is a Galactic globular cluster having observed extra tidal structure, without confirmed tidal tails.	background 0.58	0.09	0.03	asserted 0.98
s1	$Gaia$ DR2 provides photometric and astrometric data for many of the stars in NGC 288 and its extra tidal structure.	background 0.72	0.08	0.02	asserted 1.00
s2	To compare with $Gaia$ data, we simulate an $N$-body model of a star cluster with the same orbit as NGC 288 in a Milky Way potential.	method 0.99	0.92	0.02	asserted 0.90
s3	The simulation shows that the cluster forms tidal tails that are compressed along the cluster's orbit when it is at apocentre and are expected to be a diffuse bipolar structure.	result 0.68	0.73	0.06	asserted 0.90
s4	In this letter, we present a comparison between the simulation and observations from $Gaia$ DR2.	contribution 0.97	0.84	0.03	asserted 0.85
s5	We find that both the simulation and the observations share comparable trends in the position on the sky and proper motions of the extra-tidal stars, supporting the presence of tidal tails around NGC 288.	result 0.93	0.96	0.95	asserted 0.97

What kind of paper the classifier reports this is: empirical study 0.52 · evidence from analysis of existing data 0.84.

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

NGC 288 is a Galactic globular cluster having observed extra tidal structure, without confirmed tidal tails. $Gaia$ DR2 provides photometric and astrometric data for many of the stars in NGC 288 and its extra tidal structure. To compare with $Gaia$ data, we simulate an $N$-body model of a star cluster with the same orbit as NGC 288 in a Milky Way potential. The simulation shows that the cluster forms tidal tails that are compressed along the cluster's orbit when it is at apocentre and are expected to be a diffuse bipolar structure. In this letter, we present a comparison between the simulation and observations from $Gaia$ DR2. We find that both the simulation and the observations share comparable trends in the position on the sky and proper motions of the extra-tidal stars, supporting the presence of tidal tails around NGC 288.

Human review

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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

Papers whose main result relates to this one's

Found among the papers closest to this one by title and main claim. Pith's classifier compared each pair's main results and a second model family confirmed the relation; checked against two further families, shown conflicts agreed 118 times in 120 and shown same results 218 times in 239. The quoted sentence is the other paper's main claim.

States a conflicting result 1 paper

The present outcome shows that NGC 288 could hardly have such tails, but favours the notion that interactions with the MW tidal field has been a relatively inefficient process for stripping stars off the cluster.

On the extended stellar structure around NGC 288 · 0.87

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