The DOI matches its Crossref record.
21-cm line studies of spiral galaxies. II. The distribution and kinematics of neutral hydrogen in spiral galaxies of various morphological types.
Abstract
We have collected detailed 21-cm maps and associated velocity fields in order to study the relation between the dynamical and morphological properties of spiral galaxies. A description is given of the various deviations from axisymmetry in spirals as is evident from the velocity fields. A large number of spirals exhibit large-scale symmetric deviations, to be interpreted either as oval distortions or as kinematical warps. Most galaxies also have asymmetries, which are sometimes quite large. Motions associated with spiral arms are found only in studies with high resolution (radius/beam size larger than 15 or 20). Despite the complications due to the irregularities in the velocity fields, crude rotation curves can be derived. Most of them are flat enough to indicate that there is a large amount of high M/L material in the outer parts. The extent of a galaxy is not well determined and there is a large variety of H I sizes. The relation between dynamics and morphology of spiral galaxies could not be very well assessed in view of these complications.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“Rubin et al. (1978) showed optically, and Bosma (1981) confirmed with 21 cm measurements of neutral hydrogen (HI) extending to much larger radii, that the RCs of spiral galaxies remain flat or even slightly rising at radii well beyond the stellar disc, where the Keplerian prediction would require a steep decline.”
From The rotation curve of the Milky Way: State of the art, the Keplerian decline debate, and implications for dark matter (2026) · cites this paper as Bosma (1981)
Citations
Cited by
Sorted by citations
Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
Kormendy, J., & Ho, L. C. (2013) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-082708-101811 · Cited by 4,421
Secular Evolution and the Formation of Pseudobulges in Disk Galaxies
Kormendy, J., & Kennicutt, R. C. (2004) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.42.053102.134024 · Cited by 1,737
“Strongly oval galaxies can be recognized independently by photometric criteria (Kormendy & Norman 1979; Kormendy 1982a) and by kinematic criteria (Bosma 1981a, b).”
BackgroundCoevolution (Or Not) of Supermassive Black Holes and Host GalaxiesPreprint
Kormendy, J., & Ho, L. C. (2013) · Cited by 1,881
THINGS: THE H i NEARBY GALAXY SURVEY
Walter, F., Brinks, E., de Blok, W. D., Bigiel, F., Kennicutt, R., Thornley, M., & Leroy, A. (2008) · The Astronomical Journal · doi:10.1088/0004-6256/136/6/2563 · Cited by 1,057
“…Groningen Bigiel, F., Leroy, A., Walter, F., Brinks, E., de Blok, W.J.G., Madore, B., Thornley, M.D., 2008, AJ, in press Bosma, 1981a, AJ, 86, 1791 Bosma, 1981b, AJ, 86, 1825 Braun, R. 1995, A&AS, 114, 409 Braun, R., 2007, A&A, 461, 455 Briggs, D. 1995, Ph.D. thesis, New Mexico Institute of…”
BackgroundDark matter self-interactions and small scale structure
Tulin, S., & Yu, H.-B. (2018) · Physics Reports · doi:10.1016/j.physrep.2017.11.004 · Cited by 1,111
Metadata
- Authors
- Bosma, A.
- Corresponding author
- Bosma, A.
- ORCID
- Bosma, A.
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 1981-12
- Volume
- 86
- Pages
- 1825
- ISSN
- 0004-6256 (ISSN-L)
- OpenAlex
- W2002592779
- Cited by
- 612
- References
- 0
- Citations by year
- 2026: 18 · 2025: 20 · 2024: 28 · 2023: 23 · 2022: 21 · 2021: 21 · 2020: 25 · 2019: 45 · 2018: 28 · 2017: 12 · 2016: 25 · 2015: 15 · 2014: 18 · 2013: 21 · 2012: 13
- FWCI
- 8.85
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Astronomical Journal (publishedVersion)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysical Phenomena and Observations
- Keywords
- spiral galaxies, neutral hydrogen, 21 cm line emission, HI velocity field, rotation curves
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
