Does the gas flow through a porous dust aggregate help its growth in a protoplanetary disk? |
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| Authors: | Minoru Sekiya Hidenori Takeda |
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| Institution: | a Department of Earth and Planetary Sciences, Faculty of Sciences, 33 Kyushu University, Hakozaki, Fukuoka 812-8581, Japan
b Department of Aeronautics and Astronautics, Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan |
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| Abstract: | Sekiya and Takeda 2003, Earth Planets Space 55, 263-269] showed that the hydrodynamic gas flow around a dust aggregate larger than the mean free path of gas molecules prevents the growth of the body. In contrast to Wurm et al. 2004, Astrophys. J. 606, 983-987], we argue that this conclusion is not altered even if we take account of the effect of the flow through a porous dust aggregate. |
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| Keywords: | Planetary formation Planetesimals |
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