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On the Generating Mechanism of Spiral Structure
Open accessAbstract
Flat galaxies want to transfer their angular momentum outwards. Only in trailing spiral structures do the gravity torques carry angular momentum outwards. We show that the presence of waves lowers the angular momentum in the inner parts and increases it in the outer parts. Further there is absorption of angular momentum by stars that resonate with the wave at the outer Lindblad resonance, and at corotation. Emission of angular momentum occurs at the inner Lindblad resonance. The role of spiral structure is to carry angular momentum from the inner parts to the outer parts so that the waves may grow. We consider bars in galaxies to be standing waves which have grown enough to orient and trap the major axes of orbits with two lobes so that they lie along the bar.
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Cited by
The New Galaxy: Signatures of Its Formation
Freeman, K., & Bland-Hawthorn, J. (2002) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.40.060401.093840 · Cited by 1,160
Protoplanet Migration by Nebula Tides
Ward, W. R. (1997) · Icarus · doi:10.1006/icar.1996.5647 · Cited by 1,071
The Assembly of the First Massive Black Holes
Inayoshi, K., Visbal, E., & Haiman, Z. (2020) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-120419-014455 · Cited by 665
Lunar-forming collisions with pre-impact rotation
CANUP, R. (2008) · Icarus · doi:10.1016/j.icarus.2008.03.011 · Cited by 157
Viscosity in a Dense Planetary Ring with Self-Gravitating Particles
Daisaka, H. (2001) · Icarus · doi:10.1006/icar.2001.6716 · Cited by 140
Metadata
- Authors
- Lynden-Bell, D., & Kalnajs, A. J.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 1972-04-01
- Volume
- 157
- Issue
- 1
- Pages
- 1-30
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W2003092390
- Cited by
- 716
- References
- 0
- FWCI
- 6.90
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Lynden-Bell, D., & Kalnajs, A. J. (1972). On the Generating Mechanism of Spiral Structure. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/157.1.1
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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