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Distribution of dark matter in the spiral galaxy NGC 3198
Abstract
Two-component mass models, consisting of an exponential disk and a spherical halo, are constructed to fit a newly determined rotation curve of NGC 3198 that extends to 11 disk scale lengths. The amount of dark matter inside the last point of the rotation curve, at 30 kpc, is at least 4 times larger than the amount of visible matter, with M/L(B)tot = 18 solar M/L(B). The maximum mass-to-light ratio for the disk is M/L(B) = 3.6. The available data cannot discriminate between disk models with low M/L and high M/L, but arguments are presented which suggest that the true mass-to-light ratio of the disk is close to the maximum computed value. The core radius of the distribution of dark matter is found to satisfy R(core) of between 1.7 and 12.5 kpc.
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Citations
Cited by
Dark 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
HIGH-RESOLUTION ROTATION CURVES AND GALAXY MASS MODELS FROM THINGS
de Blok, W. J. G., Walter, F., Brinks, E., Trachternach, C., Oh, S.-H., & Kennicutt, R. C. (2008) · The Astronomical Journal · doi:10.1088/0004-6256/136/6/2648 · Cited by 940
SPARC: MASS MODELS FOR 175 DISK GALAXIES WITH SPITZER PHOTOMETRY AND ACCURATE ROTATION CURVES
Lelli, F., McGaugh, S. S., & Schombert, J. M. (2016) · The Astronomical Journal · doi:10.3847/0004-6256/152/6/157 · Cited by 835
The cored distribution of dark matter in spiral galaxies
Gentile, G., Salucci, P., Klein, U., Vergani, D., & Kalberla, P. (2004) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2004.07836.x · Cited by 579
Constraints from Dynamical Friction on the Dark Matter Content of Barred Galaxies
Debattista, V. P., & Sellwood, J. A. (2000) · The Astrophysical Journal · doi:10.1086/317148 · Cited by 560
Metadata
- Authors
- van Albada, T. S., Bahcall, J. N., Begeman, K., & Sancisi, R.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1985-08
- Volume
- 295
- Pages
- 305
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2048101337
- Cited by
- 455
- References
- 0
- FWCI
- 17.38
- Type
- journal article
- Language
- en
- Open access
- closed
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- van Albada, T. S., Bahcall, J. N., Begeman, K., & Sancisi, R. (1985). Distribution of dark matter in the spiral galaxy NGC 3198. The Astrophysical Journal. https://doi.org/10.1086/163375
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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.
