ISSN:
1562-6873
Keywords:
galaxies
;
groups and clusters of galaxies
;
intergalactic gas
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Numerical simulations of the disruption of a dwarf companion moving in the polar plane of a massive galaxy are presented. The constructed model is compared with observational data on the recently discovered low-surface-brightness stellar ring around the galaxy NGC 5907. Constraints on the ring lifetime (≤ 1.5 Gyr after the first approach of the galaxies), on the structure of the companion—the ring precursor, and on the mass of the dark halo of the main galaxy in whose gravitational field the companion moves are provided. The dark-halo mass within 50 kpc of the NGC 5907 center cannot exceed 3 or 4 “visible” masses.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1134/1.20392
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