Momentum transfer to fluffy dust aggregates from stellar winds

Minato, T.; Kohler, M.; Kimura, H.; Mann, I.; Yamamoto, T.

Momentum transfer to fluffy dust aggregates from stellar winds

Minato, T.; Kohler, M.; Kimura, H. et al.

Astronomy & Astrophysics, 2006, 452(2), 701-707

Permalink : https://hdl.handle.net/2115/11395

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/11395
タイトル	Momentum transfer to fluffy dust aggregates from stellar winds
著者	Minato, T. ; Kohler, M. ; Kimura, H. ; Mann, I. ; Yamamoto, T.
著者名 Minato, T.
著者名 Kohler, M.
著者名 Kimura, H.
著者名 Mann, I.
e-Rad_Researcher 10126196 著者名 Yamamoto, T. 山本, 哲生
言語	英語
キーワード	stars : wind
	interplanetary medium
	outflows
	Kuiper Belt
	solar wind
	circumstellar matter
	meteors
	meteroids
発行日	2006-06
出版者	EDP SCIENCES
収録物名	Astronomy & Astrophysics
巻(号)	452(2)
ページ	701-707
抄録	Aims. Dust-plasma interaction may play a dominant role in the dynamics of dust particles around young main-sequence stars. Circumstellar dust is expected to be an aggregate consisting of small grains. The momentum transfer cross section (MTCS) for an aggregate is a key quantity for determining the lifetimes of circumstellar dust disks. Methods. We formulate the MTCS of fluffy dust aggregates and propose an algorithm for computing the MTCS. We compare the magnitude of the plasma and photon Poynting-Roberson effects (PR effects). Results. We find an empirical formula that approximates numerical results well for the MTCSs. A comparison of the magnitudes of the PR effects shows that the lifetime of debris dust around young main-sequence stars is shorter by orders of magnitude than the lifetime estimated by considering the photon PR effect alone. Brief discussion is given on the plasma PR effect for dust debris disks around young main-sequence stars.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	The original publication is available at www.edpsciences.org
PISSN	0004-6361
EISSN	1432-0746
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1051/0004-6361:20054774