The DOI matches its Crossref record.
On the Spiral Structure of Disk Galaxies. III. Comparison with Observations
Abstract
The density-wave theory of galactic spirals is developed in a form slightly more general than that outlined by Lin and Shu in an earlier short communication. Only self-sustained waves are studied in this paper, and the problem of the origin of the spiral structure is barely discussed. The implications of the theory are examined, both in general terms and in detail. The conclusions are compared with observa- tions. Specifically, we consider (1) the distribution of atomic hydrogen in the Galaxy, (2) the systematic motion of the gas, (3) the distribution of young stars and other optical objects, and (4) the migration of moderately young stars. Good agreements are obtained in all cases if we adopt a pattern speed of about 13 km sec' kpc', and a spiral gravitational field equal to about 5 per cent of the symmetrical field. General discussions are also given on (a) the structure of the magnetic field and its role on the systematic motion of the gas, (b) the role of the density wave in the process of star formation, and (c) the distribution of liii regions as revealed by the 109a radio observations
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Control of star formation by supersonic turbulence
Mac Low, M.-M., & Klessen, R. S. (2004) · Reviews of Modern Physics · doi:10.1103/revmodphys.76.125 · Cited by 1,761
A high-resolution image of atomic hydrogen in the M81 group of galaxies
Yun, M. S., Ho, P. T. P., & Lo, K. Y. (1994) · Nature · doi:10.1038/372530a0 · Cited by 480
THE MILKY WAY'S CIRCULAR-VELOCITY CURVE BETWEEN 4 AND 14 kpc FROM APOGEE DATA
Bovy, J., Allende Prieto, C., Beers, T. C., Bizyaev, D., da Costa, L. N., Cunha, K., Ebelke, G. L., Eisenstein, D. J., Frinchaboy, P. M., García Pérez, A. E., et al. (2012) · The Astrophysical Journal · doi:10.1088/0004-637x/759/2/131 · Cited by 413
On the origin of cosmic magnetic fields
Kulsrud, R. M., & Zweibel, E. G. (2008) · Reports on Progress in Physics · doi:10.1088/0034-4885/71/4/046901 · Cited by 397
The Distance to the Perseus Spiral Arm in the Milky Way
Xu, Y., Reid, M. J., Zheng, X. W., & Menten, K. M. (2006) · Science · doi:10.1126/science.1120914 · Cited by 374
Metadata
- Authors
- Lin, C. C., Yuan, C., & Shu, F. H.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1969-03
- Volume
- 155
- Pages
- 721
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2029107953
- Cited by
- 438
- References
- 0
- FWCI
- 21.60
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: On the Spiral Structure of Disk Galaxies. III. Comparison with Observations. https://app.cochat.ai/papers/10.1086/149907
- The paper
- Lin, C. C., Yuan, C., & Shu, F. H. (1969). On the Spiral Structure of Disk Galaxies. III. Comparison with Observations. The Astrophysical Journal. https://doi.org/10.1086/149907
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
