The R.A.P. Project (Reviews of Astro-Ph) 2003
Gidrodinamika i MGD
(Arhiv Gidrodinamika i MGD: v.2, 2004,
v.1, 2002-2003)
Authors: Benjamin D. G. Chandran
Comments: 12 pages, 7 figures. To appear in the proceedings of the International Workshop on magnetic fields and star formation: theory versus observations. Madrid, April, 2003
Nebol'shoi obzor po MGD turbulentnosti neszhimaemoi sredy. Yasno, chto bez mnozhestva formul v takom sluchae ne oboitis', no avtor dostatochno horosho proillyustriroval svoi obzor, sdelav ego tem samym dovol'no dostupnym.
V etom vypuske est' rabota na blizkuyu temu:
astro-ph/0311372
A. Lazarian and J. Cho
Osnovnye svoistva szhimaemoi MGD-turbulentnosti: v prilozhenii
k molekulyarnym oblakam
(Basic Properties of Compressible MHD Turbulence: Implications for
Molecular Clouds)
Authors: Keiichi Wada, Jin Koda
Comments: 22 pages, 13 figures, submitted to MNRAS
Spiral'nye galaktiki, navernoe, samye "pravil'nye" kosmicheskie ob'ekty. Ustoichivy li ih spirali? Mozhno li otvetit' na etot vopros hotya by v chisto gidrodinamicheskom priblizhenii? Kak na spiral'nuyu udarnuyu volnu vozdeistvuet spiral'nyi gravitacionnyh potencial diska galaktiki? Chislennoe modelirovanie, provedennoe avtorami dannoi raboty, pokazalo, chto ustoichivost' spiral'noi volny zavisit ot ee ugla zakrutki (pitch-ugla) i ot skorosti volny. Volna s uglom zakrutki 10o stanovitsya ustoichivoi pri chisle Maha M>3-6, a pri ugle 20o ona vsegda neustoichiva. (Rezul'taty interesnye, no, veroyatno, na samom dele vse sushestvenno slozhnee.)
Chislennye raschety illyustriruyushie reakciyu gazovogo diska
na spiral'nyi gravitacionnyi potencial.
(Arhiv Gidrodinamika i MGD: v.2, 2004,
v.1, 2002-2003)
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