A merger scenario for NGC 7252 - A tale of two tails

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169742· OSTI ID:5756894

Borne, K D; Richstone, D O ^[1]

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1. Space Telescope Science Institute, Baltimore, MD (USA) Michigan Univ., Ann Arbor (USA)

Schweizer has proposed that NGC 7252 (Arp 226) recently formed from the merger of two disk galaxies and will ultimately relax into an elliptical galaxy. In this paper, the suspected collision event was successfully simulated with a gravitational interaction code, thereby reinforcing the merger hypothesis for the origin of this object. A careful selection of the disk and orbital model parameters lead to a good match to the present appearance and dynamics of this galaxy. The best simulation relaxes into an object which morphologically and kinematically resembles a normal elliptical galaxy. 19 refs.

• OSTI ID: 5756894
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 369; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
COMPUTERIZED SIMULATION
CONFIGURATION
DYNAMICS
ELLIPTICAL CONFIGURATION
GALACTIC EVOLUTION
GALAXIES
GRAVITATIONAL INTERACTIONS
INTERACTIONS
MECHANICS
MORPHOLOGY
PHOTOGRAPHY
SIMULATION