SIMULATIONS OF LARGE-SCALE GASEOUS STRUCTURES WITH SPH

Автор(и)

  • N. Ya. Sotnikova Astronomical Institute of St.Petersburg State University, St.Petersburg, Russia, Російська Федерація

DOI:

https://doi.org/10.18524/1810-4215.1996.9.93682

Ключові слова:

galaxies, general, interactions, kinematics and dynamics, peculiar

Анотація

A computer programme based on the 3D SPH approach is described. Some numerical results are presented: the formation of gaseous ring around an SO galaxy due to the stripping of a gas-rich donor system. It is found that the ring structure strongly depends on the detailed structure of the recipient object. With the same impact parameters, rings forming around galaxies with a strong concentration of mass to the center should be less extended (on the average) than that around galaxies with a more gently sloping density profile. This inference explains in a quite natural manner the absence of extended polar rings around elliptical galaxies.

Посилання

Gingold R.A., Monaghan J.J.: 1977, Mon. Notic. Roy. Astron. Soc, 181, 375.

Hernquist L., Katz N.: 1989, Astrophys. J. Suppl. Ser., 70, 419.

Lucy L.B.: 1977 Astron. J., 82, 1013.

Monaghan J.J.: 1992, Annu. Rev. Astron. Astrophys., 30, 543.

Schweizer F., Whitemore B.C., Rubin V.C.: 1983, Astron. X, 88, 909.

Sotnikova N.Ya.: 1996, Afz, (in press).

Steinmetz M., Muller E.: 1993, Astron. And Astrophys., 268, 391.

Whitemore B.C., Lucas R.A., McElroy D.B., Steiman-Cameron T.Y., Sackett P.D., Oiling R.P.: 1990, Astron. X, 100, 1489.

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2017-11-04

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