Simulation of the gravitational collapse and fragmentation of rotating molecular clouds
In this paper we study the process of the subsequent (runaway) fragmentation of a rotating isothermal Giant Molecular Cloud (GMC) complex. Our own Smoothed Particle Hydrodynamics (SPH) gas-dynamical model successfully reproduces the observed Cloud Mass-distribution Function (CMF) in our Galaxy (even...
Збережено в:
| Дата: | 2005 |
|---|---|
| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Головна астрономічна обсерваторія НАН України
2005
|
| Назва видання: | Кинематика и физика небесных тел |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/79646 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Simulation of the gravitational collapse and fragmentation of rotating molecular clouds / P. Berczik, M.I. Petrov // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 216-223. — Бібліогр.: 27 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-79646 |
|---|---|
| record_format |
dspace |
| spelling |
irk-123456789-796462015-04-04T03:01:46Z Simulation of the gravitational collapse and fragmentation of rotating molecular clouds Berczik, P. Petrov, M.I. MS3: Physics of Stars and Galaxies In this paper we study the process of the subsequent (runaway) fragmentation of a rotating isothermal Giant Molecular Cloud (GMC) complex. Our own Smoothed Particle Hydrodynamics (SPH) gas-dynamical model successfully reproduces the observed Cloud Mass-distribution Function (CMF) in our Galaxy (even the differences between the inner and outer parts of our Galaxy). The steady state of CMF is established during the collapse within a free-fall timescale of the GMC. We show that one of the key parameters, which defines the observed slope of the present day CMF, is the initial ratio of the rotational (turbulent) and gravitational energy inside the fragmented GMC. 2005 Article Simulation of the gravitational collapse and fragmentation of rotating molecular clouds / P. Berczik, M.I. Petrov // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 216-223. — Бібліогр.: 27 назв. — англ. 0233-7665 http://dspace.nbuv.gov.ua/handle/123456789/79646 en Кинематика и физика небесных тел Головна астрономічна обсерваторія НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
MS3: Physics of Stars and Galaxies MS3: Physics of Stars and Galaxies |
| spellingShingle |
MS3: Physics of Stars and Galaxies MS3: Physics of Stars and Galaxies Berczik, P. Petrov, M.I. Simulation of the gravitational collapse and fragmentation of rotating molecular clouds Кинематика и физика небесных тел |
| description |
In this paper we study the process of the subsequent (runaway) fragmentation of a rotating isothermal Giant Molecular Cloud (GMC) complex. Our own Smoothed Particle Hydrodynamics (SPH) gas-dynamical model successfully reproduces the observed Cloud Mass-distribution Function (CMF) in our Galaxy (even the differences between the inner and outer parts of our Galaxy). The steady state of CMF is established during the collapse within a free-fall timescale of the GMC. We show that one of the key parameters, which defines the observed slope of the present day CMF, is the initial ratio of the rotational (turbulent) and gravitational energy inside the fragmented GMC. |
| format |
Article |
| author |
Berczik, P. Petrov, M.I. |
| author_facet |
Berczik, P. Petrov, M.I. |
| author_sort |
Berczik, P. |
| title |
Simulation of the gravitational collapse and fragmentation of rotating molecular clouds |
| title_short |
Simulation of the gravitational collapse and fragmentation of rotating molecular clouds |
| title_full |
Simulation of the gravitational collapse and fragmentation of rotating molecular clouds |
| title_fullStr |
Simulation of the gravitational collapse and fragmentation of rotating molecular clouds |
| title_full_unstemmed |
Simulation of the gravitational collapse and fragmentation of rotating molecular clouds |
| title_sort |
simulation of the gravitational collapse and fragmentation of rotating molecular clouds |
| publisher |
Головна астрономічна обсерваторія НАН України |
| publishDate |
2005 |
| topic_facet |
MS3: Physics of Stars and Galaxies |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/79646 |
| citation_txt |
Simulation of the gravitational collapse and fragmentation of rotating molecular clouds / P. Berczik, M.I. Petrov // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 216-223. — Бібліогр.: 27 назв. — англ. |
| series |
Кинематика и физика небесных тел |
| work_keys_str_mv |
AT berczikp simulationofthegravitationalcollapseandfragmentationofrotatingmolecularclouds AT petrovmi simulationofthegravitationalcollapseandfragmentationofrotatingmolecularclouds |
| first_indexed |
2023-10-18T19:19:10Z |
| last_indexed |
2023-10-18T19:19:10Z |
| _version_ |
1796146593635762176 |