Collapse of Interstellar Molecular Clouds
Makaleler > Tam Makale · 2004
Yazarlar: Dilek ZENGİN, Ekim Pekünlü, Esra Tigrak
, Uluslararası, 2004, ss 133-136
Özet
In this paper we systematically investigate the length and time scales of an interstellar molecular cloud for collapse under the influence of self–gravity, magnetic field and Coriolis forces. We used Magnetohydrodynamic (MHD) equations in linearized form in order to explore the dynamical evolution of perturbations. We found that both the Lorentz force and the Coriolis force support the cloud against self contraction, i.e., they introduce stabilizing effect against gravitational instability. Of the two cloud types with the same physical size, only those threaded by an interstellar magnetic field without rotation or those rotating without magnetic field will survive against gravitational collapse.