78 9 v 1 2 8 Se p 20 06 Infall of gas as the formation mechanism of stars up to 20 times more massive than the Sun
نویسندگان
چکیده
1 Departament d’Astronomia i Meteorologia, Universitat de Barcelona, Av. Diagonal, 647, 08028, Barcelona, Catalunya, Spain 2 Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy 3 Istituto di Radioastronomia, INAF, Sezione di Firenze, Largo E. Fermi 5, 50125 Firenze, Italy 4 Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA
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In Situ Formation of Sgra Stars via Disk Fragmentation: Parent Cloud Properties and Thermodynamics
The formation of the massive young stars surrounding SgrA* is still an open question. In this paper, we simulate the infall of a turbulent molecular cloud toward the Galactic Center (GC). We adopt two different cloud masses (4.3 × 104 M sun and 1.3 × 105 M sun). We run five simulations: the gas is assumed to be isothermal in four runs, whereas radiative cooling is included in the fifth run. In ...
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