Ripples in disk galaxies

Journal Article · Sun May 01 00:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166270· OSTI ID:7188436

Schweizer, F; Seitzer, P

Evidence is presented that ripples occur not only in ellipticals but also in disk galaxies of Hubble types S0, S0/Sa, and Sa, and probably even in the Sbc galaxy NGC 3310. It is argued that the ripples cannot usually have resulted from transient spiral waves or other forced vibrations in existing disks, but instead consist of extraneous sheetlike matter. The frequent presence of major disk-shaped companions suggests that ripple material may be acquired not only through wholesale mergers but also through mass transfer from neighbor galaxies. The implications of ripples in early-type disk galaxies are addressed. 40 references.

• Research Organization: Carnegie Institution of Washington, DC (USA); Kitt Peak National Observatory, Tucson, AZ (USA)
• OSTI ID: 7188436
• Journal Information: Astrophys. J.; (United States), Vol. 328
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXIES
MASS
MORPHOLOGY
ELLIPTICAL CONFIGURATION
GALACTIC EVOLUTION
GRAVITATIONAL INTERACTIONS
MASS TRANSFER
SEYFERT GALAXIES
BASIC INTERACTIONS
CONFIGURATION
INTERACTIONS
640105* - Astrophysics & Cosmology- Galaxies