N-Body Simulations of Small Galaxy Groups (Parte B)
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2002
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| _version_ | 1876453662567432192 |
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| author | H. Velázquez |
| author_facet | H. Velázquez |
| contents | N-Body Simulations of Small Galaxy Groups (Parte B) H. Velázquez H. Aceves Física, Astronomía y Matemáticas METHODS: NUMERICAL GALAXIES: INTERACTIONS GALAXIES: KINEMATICS AND DYNAMICS A series of N-body simulations aimed at studying the dynamics of smallgroups of galaxies is presented. In particular, our results are compared with thedynamical properties of Hickson`s compact groups (HCG). `Maximum expansion`and virial initial conditions are tested, and no primordial common dark halo is considered.The properties of small galaxy groups are very well reproduced, and thoseof Hickson`s groups are well reproduced for the most advanced stage of collapsinggroups. We find no overmerging problem in our simulations. An important fractionof groups ( 40%) initially in virial equilibrium can last for 10 Gyr withoutcomplete merging. These results provide an alternative solution to the overmergingexpected in Hickson`s compact groups. Also, the mass-to-light ratio of HCG areprobably similar to those found in clusters, suggesting that both kinds of systemshave about the same fraction of barionic to total mass. 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57138210 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.38 |
| format | Artículo científico |
| id | redalyc_57138210 |
| institution | Redalyc |
| language | en |
| publishDate | 2002 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | N-Body Simulations of Small Galaxy Groups (Parte B) H. Velázquez Física, Astronomía y Matemáticas METHODS: NUMERICAL GALAXIES: INTERACTIONS GALAXIES: KINEMATICS AND DYNAMICS N-Body Simulations of Small Galaxy Groups (Parte B) H. Velázquez H. Aceves Física, Astronomía y Matemáticas METHODS: NUMERICAL GALAXIES: INTERACTIONS GALAXIES: KINEMATICS AND DYNAMICS A series of N-body simulations aimed at studying the dynamics of smallgroups of galaxies is presented. In particular, our results are compared with thedynamical properties of Hickson`s compact groups (HCG). `Maximum expansion`and virial initial conditions are tested, and no primordial common dark halo is considered.The properties of small galaxy groups are very well reproduced, and thoseof Hickson`s groups are well reproduced for the most advanced stage of collapsinggroups. We find no overmerging problem in our simulations. An important fractionof groups ( 40%) initially in virial equilibrium can last for 10 Gyr withoutcomplete merging. These results provide an alternative solution to the overmergingexpected in Hickson`s compact groups. Also, the mass-to-light ratio of HCG areprobably similar to those found in clusters, suggesting that both kinds of systemshave about the same fraction of barionic to total mass. 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57138210 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.38 |
| title | N-Body Simulations of Small Galaxy Groups (Parte B) |
| topic | Física, Astronomía y Matemáticas METHODS: NUMERICAL GALAXIES: INTERACTIONS GALAXIES: KINEMATICS AND DYNAMICS |
| url | https://www.redalyc.org/articulo.oa?id=57138210 |