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Title: Interacting binary galaxies. IV. Simulations, masses, and spatial orientations for NGC 1587/1588 and NGC 7236/7237

Abstract

Successful efforts to match interaction models to all of the available data for two pairs of interacting binary galaxies, Nos. 99 and 564 in the Karachentsev catalog of isolated pairs, are described. The results validate simple Newtonian gravity on the 10 kpc scale. The dynamical orbital status of both K99 and K564 is uniquely determined, and the masses and spatial orientations of the pairs are tightly constrained. Total masses for the pairs are derived which are quite reasonable and yield M/L values near 10. It is concluded that the observed disturbances in rotation velocity and luminosity distribution for these binary galaxies are entirely consistent with the merger hypothesis. Distortions including U-shaped rotation profiles and one-sided luminosity disturbances provide solid observational evidence of tidal friction in action. 18 references.

Authors:
Publication Date:
Research Org.:
Space Telescope Science Institute, Baltimore, MD (USA)
OSTI Identifier:
7067569
Resource Type:
Journal Article
Journal Name:
Astrophys. J.; (United States)
Additional Journal Information:
Journal Volume: 330
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GALAXIES; GRAVITATIONAL INTERACTIONS; ALGORITHMS; ANGULAR VELOCITY; GALAXY CLUSTERS; LUMINOSITY; MASS; MATHEMATICAL MODELS; ORBITS; ROTATION; BASIC INTERACTIONS; INTERACTIONS; MATHEMATICAL LOGIC; MOTION; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; VELOCITY; 640105* - Astrophysics & Cosmology- Galaxies

Citation Formats

Borne, K D. Interacting binary galaxies. IV. Simulations, masses, and spatial orientations for NGC 1587/1588 and NGC 7236/7237. United States: N. p., 1988. Web. doi:10.1086/166455.
Borne, K D. Interacting binary galaxies. IV. Simulations, masses, and spatial orientations for NGC 1587/1588 and NGC 7236/7237. United States. https://doi.org/10.1086/166455
Borne, K D. 1988. "Interacting binary galaxies. IV. Simulations, masses, and spatial orientations for NGC 1587/1588 and NGC 7236/7237". United States. https://doi.org/10.1086/166455.
@article{osti_7067569,
title = {Interacting binary galaxies. IV. Simulations, masses, and spatial orientations for NGC 1587/1588 and NGC 7236/7237},
author = {Borne, K D},
abstractNote = {Successful efforts to match interaction models to all of the available data for two pairs of interacting binary galaxies, Nos. 99 and 564 in the Karachentsev catalog of isolated pairs, are described. The results validate simple Newtonian gravity on the 10 kpc scale. The dynamical orbital status of both K99 and K564 is uniquely determined, and the masses and spatial orientations of the pairs are tightly constrained. Total masses for the pairs are derived which are quite reasonable and yield M/L values near 10. It is concluded that the observed disturbances in rotation velocity and luminosity distribution for these binary galaxies are entirely consistent with the merger hypothesis. Distortions including U-shaped rotation profiles and one-sided luminosity disturbances provide solid observational evidence of tidal friction in action. 18 references.},
doi = {10.1086/166455},
url = {https://www.osti.gov/biblio/7067569}, journal = {Astrophys. J.; (United States)},
number = ,
volume = 330,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 1988},
month = {Fri Jul 01 00:00:00 EDT 1988}
}