Published December 1988
| Version v1
Journal article
Collisional model for the formation of ripples in early-type disk galaxies
Creators
- 1. Iowa State Univ. of Science and Technology, Ames (USA)
Description
Restricted three-body calculations of high-inclination low-impact-parameter encounters between a disk galaxy and its companion are used to demonstrate that the shell-like ripples noted in a number of disk galaxies are also collisional artifacts. It is suggested that some of the ripples may be the results of internal oscillations following such encounters. It is assumed that the target is an early-type disk with a sufficiently low gas fraction that recent star formation does not dominate the appearance of the disturbed disk. 24 references
Additional details
Publishing Information
- Journal Title
- Astronomical Journal
- Journal Volume
- 96
- Series
- Astron. J.
- Journal Page Range
- 1850-1860
- ISSN
- 0004-6256
- CODEN
- ANJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20047536
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- COSMIC GASES; GALACTIC EVOLUTION; GALAXIES; GRAVITATIONAL INTERACTIONS; MATHEMATICAL MODELS; MORPHOLOGICAL CHANGES; PERTURBATION THEORY; STAR EVOLUTION; THREE-BODY PROBLEM
- Descriptors DEC
- BASIC INTERACTIONS; FLUIDS; GASES; MANY-BODY PROBLEM